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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (59 commits)
  [SCSI] replace __FUNCTION__ with __func__
  [SCSI] extend the last_sector_bug flag to cover more sectors
  [SCSI] qla2xxx: Update version number to 8.02.01-k6.
  [SCSI] qla2xxx: Additional NPIV corrections.
  [SCSI] qla2xxx: suppress uninitialized-var warning
  [SCSI] qla2xxx: use memory_read_from_buffer()
  [SCSI] qla2xxx: Issue proper ISP callbacks during stop-firmware.
  [SCSI] ch: fix ch_remove oops
  [SCSI] 3w-9xxx: add MSI support and misc fixes
  [SCSI] scsi_lib: use blk_rq_tagged in scsi_request_fn
  [SCSI] ibmvfc: Update driver version to 1.0.1
  [SCSI] ibmvfc: Add ADISC support
  [SCSI] ibmvfc: Miscellaneous fixes
  [SCSI] ibmvfc: Fix hang on module removal
  [SCSI] ibmvfc: Target refcounting fixes
  [SCSI] ibmvfc: Reduce unnecessary log noise
  [SCSI] sym53c8xx: free luntbl in sym_hcb_free
  [SCSI] scsi_scan.c: Release mutex in error handling code
  [SCSI] scsi_eh_prep_cmnd should save scmd->underflow
  [SCSI] sd: Support for SCSI disk (SBC) Data Integrity Field
  ...
This commit is contained in:
Linus Torvalds 2008-07-27 10:04:52 -07:00
commit 211c8d4942
91 changed files with 3961 additions and 1044 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/md/dm-mpath.c
View File

@ -147,9 +147,12 @@ static struct priority_group *alloc_priority_group(void)
static void free_pgpaths(struct list_head *pgpaths, struct dm_target *ti)
{
struct pgpath *pgpath, *tmp;
struct multipath *m = ti->private;
list_for_each_entry_safe(pgpath, tmp, pgpaths, list) {
list_del(&pgpath->list);
if (m->hw_handler_name)
scsi_dh_detach(bdev_get_queue(pgpath->path.dev->bdev));
dm_put_device(ti, pgpath->path.dev);
free_pgpath(pgpath);
}
@ -548,6 +551,7 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
{
int r;
struct pgpath *p;
struct multipath *m = ti->private;
/* we need at least a path arg */
if (as->argc < 1) {
@ -566,6 +570,15 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
goto bad;
}
if (m->hw_handler_name) {
r = scsi_dh_attach(bdev_get_queue(p->path.dev->bdev),
m->hw_handler_name);
if (r < 0) {
dm_put_device(ti, p->path.dev);
goto bad;
}
}
r = ps->type->add_path(ps, &p->path, as->argc, as->argv, &ti->error);
if (r) {
dm_put_device(ti, p->path.dev);

24
drivers/message/fusion/mptbase.c
View File

@ -273,12 +273,12 @@ mpt_fault_reset_work(struct work_struct *work)
ioc_raw_state = mpt_GetIocState(ioc, 0);
if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT) {
printk(MYIOC_s_WARN_FMT "IOC is in FAULT state (%04xh)!!!\n",
ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK);
ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK);
printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
ioc->name, __FUNCTION__);
ioc->name, __func__);
rc = mpt_HardResetHandler(ioc, CAN_SLEEP);
printk(MYIOC_s_WARN_FMT "%s: HardReset: %s\n", ioc->name,
__FUNCTION__, (rc == 0) ? "success" : "failed");
__func__, (rc == 0) ? "success" : "failed");
ioc_raw_state = mpt_GetIocState(ioc, 0);
if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT)
printk(MYIOC_s_WARN_FMT "IOC is in FAULT state after "
@ -356,7 +356,7 @@ mpt_turbo_reply(MPT_ADAPTER *ioc, u32 pa)
if (!cb_idx || cb_idx >= MPT_MAX_PROTOCOL_DRIVERS ||
MptCallbacks[cb_idx] == NULL) {
printk(MYIOC_s_WARN_FMT "%s: Invalid cb_idx (%d)!\n",
__FUNCTION__, ioc->name, cb_idx);
__func__, ioc->name, cb_idx);
goto out;
}
@ -420,7 +420,7 @@ mpt_reply(MPT_ADAPTER *ioc, u32 pa)
if (!cb_idx || cb_idx >= MPT_MAX_PROTOCOL_DRIVERS ||
MptCallbacks[cb_idx] == NULL) {
printk(MYIOC_s_WARN_FMT "%s: Invalid cb_idx (%d)!\n",
__FUNCTION__, ioc->name, cb_idx);
__func__, ioc->name, cb_idx);
freeme = 0;
goto out;
}
@ -2434,7 +2434,7 @@ mpt_adapter_disable(MPT_ADAPTER *ioc)
if (ioc->cached_fw != NULL) {
ddlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: Pushing FW onto "
"adapter\n", __FUNCTION__, ioc->name));
"adapter\n", __func__, ioc->name));
if ((ret = mpt_downloadboot(ioc, (MpiFwHeader_t *)
ioc->cached_fw, CAN_SLEEP)) < 0) {
printk(MYIOC_s_WARN_FMT
@ -3693,7 +3693,7 @@ mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag)
if (ioc->pcidev->device == MPI_MANUFACTPAGE_DEVID_SAS1078) {
drsprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: Doorbell=%p; 1078 reset "
"address=%p\n", ioc->name, __FUNCTION__,
"address=%p\n", ioc->name, __func__,
&ioc->chip->Doorbell, &ioc->chip->Reset_1078));
CHIPREG_WRITE32(&ioc->chip->Reset_1078, 0x07);
if (sleepFlag == CAN_SLEEP)
@ -4742,12 +4742,12 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode)
break;
}
printk("%s: persist_opcode=%x\n",__FUNCTION__, persist_opcode);
printk("%s: persist_opcode=%x\n",__func__, persist_opcode);
/* Get a MF for this command.
*/
if ((mf = mpt_get_msg_frame(mpt_base_index, ioc)) == NULL) {
printk("%s: no msg frames!\n",__FUNCTION__);
printk("%s: no msg frames!\n",__func__);
return -1;
}
@ -4771,13 +4771,13 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode)
(SasIoUnitControlReply_t *)ioc->persist_reply_frame;
if (le16_to_cpu(sasIoUnitCntrReply->IOCStatus) != MPI_IOCSTATUS_SUCCESS) {
printk("%s: IOCStatus=0x%X IOCLogInfo=0x%X\n",
__FUNCTION__,
__func__,
sasIoUnitCntrReply->IOCStatus,
sasIoUnitCntrReply->IOCLogInfo);
return -1;
}
printk("%s: success\n",__FUNCTION__);
printk("%s: success\n",__func__);
return 0;
}
@ -5784,7 +5784,7 @@ SendEventAck(MPT_ADAPTER *ioc, EventNotificationReply_t *evnp)
if ((pAck = (EventAck_t *) mpt_get_msg_frame(mpt_base_index, ioc)) == NULL) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames!!\n",
ioc->name,__FUNCTION__));
ioc->name,__func__));
return -1;
}

4
drivers/message/fusion/mptctl.c
View File

@ -505,7 +505,7 @@ mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
event = le32_to_cpu(pEvReply->Event) & 0xFF;
dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s() called\n",
ioc->name, __FUNCTION__));
ioc->name, __func__));
if(async_queue == NULL)
return 1;
@ -2482,7 +2482,7 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
*/
if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames!!\n",
ioc->name,__FUNCTION__));
ioc->name,__func__));
goto out;
}

8
drivers/message/fusion/mptfc.c
View File

@ -231,28 +231,28 @@ static int
mptfc_abort(struct scsi_cmnd *SCpnt)
{
return
mptfc_block_error_handler(SCpnt, mptscsih_abort, __FUNCTION__);
mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
}
static int
mptfc_dev_reset(struct scsi_cmnd *SCpnt)
{
return
mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __FUNCTION__);
mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
}
static int
mptfc_bus_reset(struct scsi_cmnd *SCpnt)
{
return
mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __FUNCTION__);
mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
}
static int
mptfc_host_reset(struct scsi_cmnd *SCpnt)
{
return
mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __FUNCTION__);
mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__);
}
static void

26
drivers/message/fusion/mptlan.c
View File

@ -610,7 +610,7 @@ mpt_lan_send_turbo(struct net_device *dev, u32 tmsg)
dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n",
IOC_AND_NETDEV_NAMES_s_s(dev),
__FUNCTION__, sent));
__func__, sent));
priv->SendCtl[ctx].skb = NULL;
pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma,
@ -676,7 +676,7 @@ mpt_lan_send_reply(struct net_device *dev, LANSendReply_t *pSendRep)
dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n",
IOC_AND_NETDEV_NAMES_s_s(dev),
__FUNCTION__, sent));
__func__, sent));
priv->SendCtl[ctx].skb = NULL;
pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma,
@ -715,7 +715,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
u16 cur_naa = 0x1000;
dioprintk((KERN_INFO MYNAM ": %s called, skb_addr = %p\n",
__FUNCTION__, skb));
__func__, skb));
spin_lock_irqsave(&priv->txfidx_lock, flags);
if (priv->mpt_txfidx_tail < 0) {
@ -723,7 +723,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&priv->txfidx_lock, flags);
printk (KERN_ERR "%s: no tx context available: %u\n",
__FUNCTION__, priv->mpt_txfidx_tail);
__func__, priv->mpt_txfidx_tail);
return 1;
}
@ -733,7 +733,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&priv->txfidx_lock, flags);
printk (KERN_ERR "%s: Unable to alloc request frame\n",
__FUNCTION__);
__func__);
return 1;
}
@ -1208,7 +1208,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out = %u\n",
IOC_AND_NETDEV_NAMES_s_s(dev),
__FUNCTION__, buckets, curr));
__func__, buckets, curr));
max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) /
(MPT_LAN_TRANSACTION32_SIZE + sizeof(SGESimple64_t));
@ -1217,9 +1217,9 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
mf = mpt_get_msg_frame(LanCtx, mpt_dev);
if (mf == NULL) {
printk (KERN_ERR "%s: Unable to alloc request frame\n",
__FUNCTION__);
__func__);
dioprintk((KERN_ERR "%s: %u buckets remaining\n",
__FUNCTION__, buckets));
__func__, buckets));
goto out;
}
pRecvReq = (LANReceivePostRequest_t *) mf;
@ -1244,7 +1244,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
spin_lock_irqsave(&priv->rxfidx_lock, flags);
if (priv->mpt_rxfidx_tail < 0) {
printk (KERN_ERR "%s: Can't alloc context\n",
__FUNCTION__);
__func__);
spin_unlock_irqrestore(&priv->rxfidx_lock,
flags);
break;
@ -1267,7 +1267,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
if (skb == NULL) {
printk (KERN_WARNING
MYNAM "/%s: Can't alloc skb\n",
__FUNCTION__);
__func__);
priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx;
spin_unlock_irqrestore(&priv->rxfidx_lock, flags);
break;
@ -1305,7 +1305,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
if (pSimple == NULL) {
/**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n",
/**/ __FUNCTION__);
/**/ __func__);
mpt_free_msg_frame(mpt_dev, mf);
goto out;
}
@ -1329,9 +1329,9 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
out:
dioprintk((KERN_INFO MYNAM "/%s: End_buckets = %u, priv->buckets_out = %u\n",
__FUNCTION__, buckets, atomic_read(&priv->buckets_out)));
__func__, buckets, atomic_read(&priv->buckets_out)));
dioprintk((KERN_INFO MYNAM "/%s: Posted %u buckets and received %u back\n",
__FUNCTION__, priv->total_posted, priv->total_received));
__func__, priv->total_posted, priv->total_received));
clear_bit(0, &priv->post_buckets_active);
}

54
drivers/message/fusion/mptsas.c
View File

@ -300,7 +300,7 @@ mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_detai
phy_info = port_info->phy_info;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: num_phys=%02d "
"bitmask=0x%016llX\n", ioc->name, __FUNCTION__, port_details,
"bitmask=0x%016llX\n", ioc->name, __func__, port_details,
port_details->num_phys, (unsigned long long)
port_details->phy_bitmask));
@ -411,7 +411,7 @@ mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
*/
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"%s: [%p]: deleting phy = %d\n",
ioc->name, __FUNCTION__, port_details, i));
ioc->name, __func__, port_details, i));
port_details->num_phys--;
port_details->phy_bitmask &= ~ (1 << phy_info->phy_id);
memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
@ -497,7 +497,7 @@ mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
continue;
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"%s: [%p]: phy_id=%02d num_phys=%02d "
"bitmask=0x%016llX\n", ioc->name, __FUNCTION__,
"bitmask=0x%016llX\n", ioc->name, __func__,
port_details, i, port_details->num_phys,
(unsigned long long)port_details->phy_bitmask));
dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tport = %p rphy=%p\n",
@ -553,7 +553,7 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id)
if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames @%d!!\n",
ioc->name,__FUNCTION__, __LINE__));
ioc->name,__func__, __LINE__));
return 0;
}
@ -606,7 +606,7 @@ mptsas_target_reset_queue(MPT_ADAPTER *ioc,
GFP_ATOMIC);
if (!target_reset_list) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n",
ioc->name,__FUNCTION__, __LINE__));
ioc->name,__func__, __LINE__));
return;
}
@ -673,7 +673,7 @@ mptsas_dev_reset_complete(MPT_ADAPTER *ioc)
ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
if (!ev) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n",
ioc->name,__FUNCTION__, __LINE__));
ioc->name,__func__, __LINE__));
return;
}
@ -1183,7 +1183,7 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply;
if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) {
printk(MYIOC_s_INFO_FMT "%s: IOCStatus=0x%X IOCLogInfo=0x%X\n",
ioc->name, __FUNCTION__, reply->IOCStatus, reply->IOCLogInfo);
ioc->name, __func__, reply->IOCStatus, reply->IOCLogInfo);
error = -ENXIO;
goto out_unlock;
}
@ -1270,14 +1270,14 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
if (!rsp) {
printk(MYIOC_s_ERR_FMT "%s: the smp response space is missing\n",
ioc->name, __FUNCTION__);
ioc->name, __func__);
return -EINVAL;
}
/* do we need to support multiple segments? */
if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
printk(MYIOC_s_ERR_FMT "%s: multiple segments req %u %u, rsp %u %u\n",
ioc->name, __FUNCTION__, req->bio->bi_vcnt, req->data_len,
ioc->name, __func__, req->bio->bi_vcnt, req->data_len,
rsp->bio->bi_vcnt, rsp->data_len);
return -EINVAL;
}
@ -1343,7 +1343,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, 10 * HZ);
if (!timeleft) {
printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __FUNCTION__);
printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __func__);
/* On timeout reset the board */
mpt_HardResetHandler(ioc, CAN_SLEEP);
ret = -ETIMEDOUT;
@ -1361,7 +1361,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
rsp->data_len -= smprep->ResponseDataLength;
} else {
printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n",
ioc->name, __FUNCTION__);
ioc->name, __func__);
ret = -ENXIO;
}
unmap:
@ -2006,7 +2006,7 @@ static int mptsas_probe_one_phy(struct device *dev,
if (error) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
goto out;
}
mptsas_set_port(ioc, phy_info, port);
@ -2076,7 +2076,7 @@ static int mptsas_probe_one_phy(struct device *dev,
if (!rphy) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
goto out;
}
@ -2085,7 +2085,7 @@ static int mptsas_probe_one_phy(struct device *dev,
if (error) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
sas_rphy_free(rphy);
goto out;
}
@ -2613,7 +2613,7 @@ mptsas_hotplug_work(struct work_struct *work)
(ev->channel << 8) + ev->id)) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
phy_info = mptsas_find_phyinfo_by_sas_address(
@ -2633,20 +2633,20 @@ mptsas_hotplug_work(struct work_struct *work)
if (!phy_info){
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
if (!phy_info->port_details) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
rphy = mptsas_get_rphy(phy_info);
if (!rphy) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
@ -2654,7 +2654,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!port) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
@ -2665,7 +2665,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!vtarget) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
@ -2720,7 +2720,7 @@ mptsas_hotplug_work(struct work_struct *work)
(ev->channel << 8) + ev->id)) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
@ -2732,7 +2732,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!phy_info || !phy_info->port_details) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
@ -2744,7 +2744,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!vtarget) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
/*
@ -2767,7 +2767,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (mptsas_get_rphy(phy_info)) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
if (ev->channel) printk("%d\n", __LINE__);
break;
}
@ -2776,7 +2776,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!port) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break;
}
memcpy(&phy_info->attached, &sas_device,
@ -2801,7 +2801,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (!rphy) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
break; /* non-fatal: an rphy can be added later */
}
@ -2809,7 +2809,7 @@ mptsas_hotplug_work(struct work_struct *work)
if (sas_rphy_add(rphy)) {
dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"%s: exit at line=%d\n", ioc->name,
__FUNCTION__, __LINE__));
__func__, __LINE__));
sas_rphy_free(rphy);
break;
}

4
drivers/message/fusion/mptscsih.c
View File

@ -461,7 +461,7 @@ mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
ioc->name,__FUNCTION__));
ioc->name,__func__));
return;
}
@ -2187,7 +2187,7 @@ mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *m
(ioc->debug_level & MPT_DEBUG_TM ))
printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
"iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
"term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
"term_cmnds=%d\n", __func__, ioc->id, pScsiTmReply->Bus,
pScsiTmReply->TargetID, pScsiTmReq->TaskType,
le16_to_cpu(pScsiTmReply->IOCStatus),
le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,

40
drivers/scsi/3w-9xxx.c
View File

@ -4,7 +4,7 @@
Written By: Adam Radford <linuxraid@amcc.com>
Modifications By: Tom Couch <linuxraid@amcc.com>
Copyright (C) 2004-2007 Applied Micro Circuits Corporation.
Copyright (C) 2004-2008 Applied Micro Circuits Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -71,6 +71,10 @@
Add support for 9650SE controllers.
2.26.02.009 - Fix dma mask setting to fallback to 32-bit if 64-bit fails.
2.26.02.010 - Add support for 9690SA controllers.
2.26.02.011 - Increase max AENs drained to 256.
Add MSI support and "use_msi" module parameter.
Fix bug in twa_get_param() on 4GB+.
Use pci_resource_len() for ioremap().
*/
#include <linux/module.h>
@ -95,7 +99,7 @@
#include "3w-9xxx.h"
/* Globals */
#define TW_DRIVER_VERSION "2.26.02.010"
#define TW_DRIVER_VERSION "2.26.02.011"
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
@ -107,6 +111,10 @@ MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(TW_DRIVER_VERSION);
static int use_msi = 0;
module_param(use_msi, int, S_IRUGO);
MODULE_PARM_DESC(use_msi, "Use Message Signaled Interrupts. Default: 0");
/* Function prototypes */
static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header);
static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id);
@ -1038,7 +1046,6 @@ static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int tabl
TW_Command_Full *full_command_packet;
TW_Command *command_packet;
TW_Param_Apache *param;
unsigned long param_value;
void *retval = NULL;
/* Setup the command packet */
@ -1057,9 +1064,8 @@ static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int tabl
param->table_id = cpu_to_le16(table_id | 0x8000);
param->parameter_id = cpu_to_le16(parameter_id);
param->parameter_size_bytes = cpu_to_le16(parameter_size_bytes);
param_value = tw_dev->generic_buffer_phys[request_id];
command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(param_value);
command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
command_packet->byte8_offset.param.sgl[0].length = cpu_to_le32(TW_SECTOR_SIZE);
/* Post the command packet to the board */
@ -2000,7 +2006,7 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
{
struct Scsi_Host *host = NULL;
TW_Device_Extension *tw_dev;
u32 mem_addr;
unsigned long mem_addr, mem_len;
int retval = -ENODEV;
retval = pci_enable_device(pdev);
@ -2045,13 +2051,16 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
goto out_free_device_extension;
}
if (pdev->device == PCI_DEVICE_ID_3WARE_9000)
if (pdev->device == PCI_DEVICE_ID_3WARE_9000) {
mem_addr = pci_resource_start(pdev, 1);
else
mem_len = pci_resource_len(pdev, 1);
} else {
mem_addr = pci_resource_start(pdev, 2);
mem_len = pci_resource_len(pdev, 2);
}
/* Save base address */
tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE);
tw_dev->base_addr = ioremap(mem_addr, mem_len);
if (!tw_dev->base_addr) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap");
goto out_release_mem_region;
@ -2086,7 +2095,7 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
pci_set_drvdata(pdev, host);
printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%x, IRQ: %d.\n",
printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%lx, IRQ: %d.\n",
host->host_no, mem_addr, pdev->irq);
printk(KERN_WARNING "3w-9xxx: scsi%d: Firmware %s, BIOS %s, Ports: %d.\n",
host->host_no,
@ -2097,6 +2106,11 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
le32_to_cpu(*(int *)twa_get_param(tw_dev, 2, TW_INFORMATION_TABLE,
TW_PARAM_PORTCOUNT, TW_PARAM_PORTCOUNT_LENGTH)));
/* Try to enable MSI */
if (use_msi && (pdev->device != PCI_DEVICE_ID_3WARE_9000) &&
!pci_enable_msi(pdev))
set_bit(TW_USING_MSI, &tw_dev->flags);
/* Now setup the interrupt handler */
retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
if (retval) {
@ -2120,6 +2134,8 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
return 0;
out_remove_host:
if (test_bit(TW_USING_MSI, &tw_dev->flags))
pci_disable_msi(pdev);
scsi_remove_host(host);
out_iounmap:
iounmap(tw_dev->base_addr);
@ -2151,6 +2167,10 @@ static void twa_remove(struct pci_dev *pdev)
/* Shutdown the card */
__twa_shutdown(tw_dev);
/* Disable MSI if enabled */
if (test_bit(TW_USING_MSI, &tw_dev->flags))
pci_disable_msi(pdev);
/* Free IO remapping */
iounmap(tw_dev->base_addr);

9
drivers/scsi/3w-9xxx.h
View File

@ -4,7 +4,7 @@
Written By: Adam Radford <linuxraid@amcc.com>
Modifications By: Tom Couch <linuxraid@amcc.com>
Copyright (C) 2004-2007 Applied Micro Circuits Corporation.
Copyright (C) 2004-2008 Applied Micro Circuits Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -319,8 +319,8 @@ static twa_message_type twa_error_table[] = {
/* Compatibility defines */
#define TW_9000_ARCH_ID 0x5
#define TW_CURRENT_DRIVER_SRL 30
#define TW_CURRENT_DRIVER_BUILD 80
#define TW_CURRENT_DRIVER_SRL 35
#define TW_CURRENT_DRIVER_BUILD 0
#define TW_CURRENT_DRIVER_BRANCH 0
/* Phase defines */
@ -352,8 +352,9 @@ static twa_message_type twa_error_table[] = {
#define TW_MAX_RESET_TRIES 2
#define TW_MAX_CMDS_PER_LUN 254
#define TW_MAX_RESPONSE_DRAIN 256
#define TW_MAX_AEN_DRAIN 40
#define TW_MAX_AEN_DRAIN 255
#define TW_IN_RESET 2
#define TW_USING_MSI 3
#define TW_IN_ATTENTION_LOOP 4
#define TW_MAX_SECTORS 256
#define TW_AEN_WAIT_TIME 1000

1
drivers/scsi/Kconfig
View File

@ -63,6 +63,7 @@ comment "SCSI support type (disk, tape, CD-ROM)"
config BLK_DEV_SD
tristate "SCSI disk support"
depends on SCSI
select CRC_T10DIF
---help---
If you want to use SCSI hard disks, Fibre Channel disks,
Serial ATA (SATA) or Parallel ATA (PATA) hard disks,

2
drivers/scsi/Makefile
View File

@ -151,6 +151,8 @@ scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o
scsi_tgt-y += scsi_tgt_lib.o scsi_tgt_if.o
sd_mod-objs := sd.o
sd_mod-$(CONFIG_BLK_DEV_INTEGRITY) += sd_dif.o
sr_mod-objs := sr.o sr_ioctl.o sr_vendor.o
ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \
:= -DCONFIG_NCR53C8XX_PREFETCH -DSCSI_NCR_BIG_ENDIAN \

2
drivers/scsi/advansys.c
View File

@ -2278,7 +2278,7 @@ do { \
#define ASC_DBG(lvl, format, arg...) { \
if (asc_dbglvl >= (lvl)) \
printk(KERN_DEBUG "%s: %s: " format, DRV_NAME, \
__FUNCTION__ , ## arg); \
__func__ , ## arg); \
}
#define ASC_DBG_PRT_SCSI_HOST(lvl, s) \

12
drivers/scsi/aha152x.c
View File

@ -288,20 +288,20 @@ static LIST_HEAD(aha152x_host_list);
#define DO_LOCK(flags) \
do { \
if(spin_is_locked(&QLOCK)) { \
DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
} \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
spin_lock_irqsave(&QLOCK,flags); \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
QLOCKER=__FUNCTION__; \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
QLOCKER=__func__; \
QLOCKERL=__LINE__; \
} while(0)
#define DO_UNLOCK(flags) \
do { \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
spin_unlock_irqrestore(&QLOCK,flags); \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
QLOCKER="(not locked)"; \
QLOCKERL=0; \
} while(0)

4
drivers/scsi/aic94xx/aic94xx.h
View File

@ -39,9 +39,9 @@
#ifdef ASD_ENTER_EXIT
#define ENTER printk(KERN_NOTICE "%s: ENTER %s\n", ASD_DRIVER_NAME, \
__FUNCTION__)
__func__)
#define EXIT printk(KERN_NOTICE "%s: --EXIT %s\n", ASD_DRIVER_NAME, \
__FUNCTION__)
__func__)
#else
#define ENTER
#define EXIT

2
drivers/scsi/aic94xx/aic94xx_hwi.c
View File

@ -1359,7 +1359,7 @@ int asd_enable_phys(struct asd_ha_struct *asd_ha, const u8 phy_mask)
struct asd_ascb *ascb_list;
if (!phy_mask) {
asd_printk("%s called with phy_mask of 0!?\n", __FUNCTION__);
asd_printk("%s called with phy_mask of 0!?\n", __func__);
return 0;
}

46
drivers/scsi/aic94xx/aic94xx_scb.c
View File

@ -211,7 +211,7 @@ static void asd_form_port(struct asd_ha_struct *asd_ha, struct asd_phy *phy)
phy->asd_port = port;
}
ASD_DPRINTK("%s: updating phy_mask 0x%x for phy%d\n",
__FUNCTION__, phy->asd_port->phy_mask, sas_phy->id);
__func__, phy->asd_port->phy_mask, sas_phy->id);
asd_update_port_links(asd_ha, phy);
spin_unlock_irqrestore(&asd_ha->asd_ports_lock, flags);
}
@ -294,7 +294,7 @@ static void asd_link_reset_err_tasklet(struct asd_ascb *ascb,
struct asd_ascb *cp = asd_ascb_alloc_list(ascb->ha, &num,
GFP_ATOMIC);
if (!cp) {
asd_printk("%s: out of memory\n", __FUNCTION__);
asd_printk("%s: out of memory\n", __func__);
goto out;
}
ASD_DPRINTK("phy%d: retries:0 performing link reset seq\n",
@ -446,7 +446,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
struct domain_device *failed_dev = NULL;
ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n",
__FUNCTION__, dl->status_block[3]);
__func__, dl->status_block[3]);
/*
* Find the task that caused the abort and abort it first.
@ -474,7 +474,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
if (!failed_dev) {
ASD_DPRINTK("%s: Can't find task (tc=%d) to abort!\n",
__FUNCTION__, tc_abort);
__func__, tc_abort);
goto out;
}
@ -502,7 +502,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
conn_handle = *((u16*)(&dl->status_block[1]));
conn_handle = le16_to_cpu(conn_handle);
ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __FUNCTION__,
ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __func__,
dl->status_block[3]);
/* Find the last pending task for the device... */
@ -522,7 +522,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
if (!last_dev_task) {
ASD_DPRINTK("%s: Device reset for idle device %d?\n",
__FUNCTION__, conn_handle);
__func__, conn_handle);
goto out;
}
@ -549,10 +549,10 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
goto out;
}
case SIGNAL_NCQ_ERROR:
ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __FUNCTION__);
ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __func__);
goto out;
case CLEAR_NCQ_ERROR:
ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __FUNCTION__);
ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __func__);
goto out;
}
@ -560,26 +560,26 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
switch (sb_opcode) {
case BYTES_DMAED:
ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __FUNCTION__, phy_id);
ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __func__, phy_id);
asd_bytes_dmaed_tasklet(ascb, dl, edb, phy_id);
break;
case PRIMITIVE_RECVD:
ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __func__,
phy_id);
asd_primitive_rcvd_tasklet(ascb, dl, phy_id);
break;
case PHY_EVENT:
ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __FUNCTION__, phy_id);
ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __func__, phy_id);
asd_phy_event_tasklet(ascb, dl);
break;
case LINK_RESET_ERROR:
ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __func__,
phy_id);
asd_link_reset_err_tasklet(ascb, dl, phy_id);
break;
case TIMER_EVENT:
ASD_DPRINTK("%s: phy%d: TIMER_EVENT, lost dw sync\n",
__FUNCTION__, phy_id);
__func__, phy_id);
asd_turn_led(asd_ha, phy_id, 0);
/* the device is gone */
sas_phy_disconnected(sas_phy);
@ -587,7 +587,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT);
break;
default:
ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __func__,
phy_id, sb_opcode);
ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
edb, dl->opcode);
@ -654,7 +654,7 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb,
if (status != 0) {
ASD_DPRINTK("%s: phy%d status block opcode:0x%x\n",
__FUNCTION__, phy_id, status);
__func__, phy_id, status);
goto out;
}
@ -663,7 +663,7 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb,
asd_ha->hw_prof.enabled_phys &= ~(1 << phy_id);
asd_turn_led(asd_ha, phy_id, 0);
asd_control_led(asd_ha, phy_id, 0);
ASD_DPRINTK("%s: disable phy%d\n", __FUNCTION__, phy_id);
ASD_DPRINTK("%s: disable phy%d\n", __func__, phy_id);
break;
case ENABLE_PHY:
@ -673,40 +673,40 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb,
get_lrate_mode(phy, oob_mode);
asd_turn_led(asd_ha, phy_id, 1);
ASD_DPRINTK("%s: phy%d, lrate:0x%x, proto:0x%x\n",
__FUNCTION__, phy_id,phy->sas_phy.linkrate,
__func__, phy_id,phy->sas_phy.linkrate,
phy->sas_phy.iproto);
} else if (oob_status & CURRENT_SPINUP_HOLD) {
asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
asd_turn_led(asd_ha, phy_id, 1);
ASD_DPRINTK("%s: phy%d, spinup hold\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d, spinup hold\n", __func__,
phy_id);
} else if (oob_status & CURRENT_ERR_MASK) {
asd_turn_led(asd_ha, phy_id, 0);
ASD_DPRINTK("%s: phy%d: error: oob status:0x%02x\n",
__FUNCTION__, phy_id, oob_status);
__func__, phy_id, oob_status);
} else if (oob_status & (CURRENT_HOT_PLUG_CNCT
| CURRENT_DEVICE_PRESENT)) {
asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
asd_turn_led(asd_ha, phy_id, 1);
ASD_DPRINTK("%s: phy%d: hot plug or device present\n",
__FUNCTION__, phy_id);
__func__, phy_id);
} else {
asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
asd_turn_led(asd_ha, phy_id, 0);
ASD_DPRINTK("%s: phy%d: no device present: "
"oob_status:0x%x\n",
__FUNCTION__, phy_id, oob_status);
__func__, phy_id, oob_status);
}
break;
case RELEASE_SPINUP_HOLD:
case PHY_NO_OP:
case EXECUTE_HARD_RESET:
ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __func__,
phy_id, control_phy->sub_func);
/* XXX finish */
break;
default:
ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __FUNCTION__,
ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __func__,
phy_id, control_phy->sub_func);
break;
}

2
drivers/scsi/aic94xx/aic94xx_task.c
View File

@ -320,7 +320,7 @@ Again:
case TC_RESUME:
case TC_PARTIAL_SG_LIST:
default:
ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __FUNCTION__, opcode);
ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __func__, opcode);
break;
}

18
drivers/scsi/aic94xx/aic94xx_tmf.c
View File

@ -75,12 +75,12 @@ static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb,
struct done_list_struct *dl)
{
struct tasklet_completion_status *tcs = ascb->uldd_task;
ASD_DPRINTK("%s: here\n", __FUNCTION__);
ASD_DPRINTK("%s: here\n", __func__);
if (!del_timer(&ascb->timer)) {
ASD_DPRINTK("%s: couldn't delete timer\n", __FUNCTION__);
ASD_DPRINTK("%s: couldn't delete timer\n", __func__);
return;
}
ASD_DPRINTK("%s: opcode: 0x%x\n", __FUNCTION__, dl->opcode);
ASD_DPRINTK("%s: opcode: 0x%x\n", __func__, dl->opcode);
tcs->dl_opcode = dl->opcode;
complete(ascb->completion);
asd_ascb_free(ascb);
@ -91,7 +91,7 @@ static void asd_clear_nexus_timedout(unsigned long data)
struct asd_ascb *ascb = (void *)data;
struct tasklet_completion_status *tcs = ascb->uldd_task;
ASD_DPRINTK("%s: here\n", __FUNCTION__);
ASD_DPRINTK("%s: here\n", __func__);
tcs->dl_opcode = TMF_RESP_FUNC_FAILED;
complete(ascb->completion);
}
@ -103,7 +103,7 @@ static void asd_clear_nexus_timedout(unsigned long data)
DECLARE_COMPLETION_ONSTACK(completion); \
DECLARE_TCS(tcs); \
\
ASD_DPRINTK("%s: PRE\n", __FUNCTION__); \
ASD_DPRINTK("%s: PRE\n", __func__); \
res = 1; \
ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); \
if (!ascb) \
@ -115,12 +115,12 @@ static void asd_clear_nexus_timedout(unsigned long data)
scb->header.opcode = CLEAR_NEXUS
#define CLEAR_NEXUS_POST \
ASD_DPRINTK("%s: POST\n", __FUNCTION__); \
ASD_DPRINTK("%s: POST\n", __func__); \
res = asd_enqueue_internal(ascb, asd_clear_nexus_tasklet_complete, \
asd_clear_nexus_timedout); \
if (res) \
goto out_err; \
ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __FUNCTION__); \
ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __func__); \
wait_for_completion(&completion); \
res = tcs.dl_opcode; \
if (res == TC_NO_ERROR) \
@ -417,7 +417,7 @@ int asd_abort_task(struct sas_task *task)
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
res = TMF_RESP_FUNC_COMPLETE;
ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task);
ASD_DPRINTK("%s: task 0x%p done\n", __func__, task);
goto out_done;
}
spin_unlock_irqrestore(&task->task_state_lock, flags);
@ -481,7 +481,7 @@ int asd_abort_task(struct sas_task *task)
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
res = TMF_RESP_FUNC_COMPLETE;
ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task);
ASD_DPRINTK("%s: task 0x%p done\n", __func__, task);
goto out_done;
}
spin_unlock_irqrestore(&task->task_state_lock, flags);

4
drivers/scsi/arm/fas216.c
View File

@ -240,7 +240,7 @@ static void __fas216_checkmagic(FAS216_Info *info, const char *func)
panic("scsi memory space corrupted in %s", func);
}
}
#define fas216_checkmagic(info) __fas216_checkmagic((info), __FUNCTION__)
#define fas216_checkmagic(info) __fas216_checkmagic((info), __func__)
#else
#define fas216_checkmagic(info)
#endif
@ -2658,7 +2658,7 @@ int fas216_eh_host_reset(struct scsi_cmnd *SCpnt)
fas216_checkmagic(info);
printk("scsi%d.%c: %s: resetting host\n",
info->host->host_no, '0' + SCpnt->device->id, __FUNCTION__);
info->host->host_no, '0' + SCpnt->device->id, __func__);
/*
* Reset the SCSI chip.

1
drivers/scsi/ch.c
View File

@ -930,6 +930,7 @@ static int ch_probe(struct device *dev)
if (init)
ch_init_elem(ch);
dev_set_drvdata(dev, ch);
sdev_printk(KERN_INFO, sd, "Attached scsi changer %s\n", ch->name);
return 0;

8
drivers/scsi/device_handler/Kconfig
View File

@ -30,3 +30,11 @@ config SCSI_DH_EMC
depends on SCSI_DH
help
If you have a EMC CLARiiON select y. Otherwise, say N.
config SCSI_DH_ALUA
tristate "SPC-3 ALUA Device Handler (EXPERIMENTAL)"
depends on SCSI_DH && EXPERIMENTAL
help
SCSI Device handler for generic SPC-3 Asymmetric Logical Unit
Access (ALUA).

1
drivers/scsi/device_handler/Makefile
View File

@ -5,3 +5,4 @@ obj-$(CONFIG_SCSI_DH) += scsi_dh.o
obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o
obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o
obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o
obj-$(CONFIG_SCSI_DH_ALUA) += scsi_dh_alua.o

446
drivers/scsi/device_handler/scsi_dh.c
View File

@ -24,8 +24,16 @@
#include <scsi/scsi_dh.h>
#include "../scsi_priv.h"
struct scsi_dh_devinfo_list {
struct list_head node;
char vendor[9];
char model[17];
struct scsi_device_handler *handler;
};
static DEFINE_SPINLOCK(list_lock);
static LIST_HEAD(scsi_dh_list);
static LIST_HEAD(scsi_dh_dev_list);
static struct scsi_device_handler *get_device_handler(const char *name)
{
@ -33,7 +41,7 @@ static struct scsi_device_handler *get_device_handler(const char *name)
spin_lock(&list_lock);
list_for_each_entry(tmp, &scsi_dh_list, list) {
if (!strcmp(tmp->name, name)) {
if (!strncmp(tmp->name, name, strlen(tmp->name))) {
found = tmp;
break;
}
@ -42,11 +50,307 @@ static struct scsi_device_handler *get_device_handler(const char *name)
return found;
}
static struct scsi_device_handler *
scsi_dh_cache_lookup(struct scsi_device *sdev)
{
struct scsi_dh_devinfo_list *tmp;
struct scsi_device_handler *found_dh = NULL;
spin_lock(&list_lock);
list_for_each_entry(tmp, &scsi_dh_dev_list, node) {
if (!strncmp(sdev->vendor, tmp->vendor, strlen(tmp->vendor)) &&
!strncmp(sdev->model, tmp->model, strlen(tmp->model))) {
found_dh = tmp->handler;
break;
}
}
spin_unlock(&list_lock);
return found_dh;
}
static int scsi_dh_handler_lookup(struct scsi_device_handler *scsi_dh,
struct scsi_device *sdev)
{
int i, found = 0;
for(i = 0; scsi_dh->devlist[i].vendor; i++) {
if (!strncmp(sdev->vendor, scsi_dh->devlist[i].vendor,
strlen(scsi_dh->devlist[i].vendor)) &&
!strncmp(sdev->model, scsi_dh->devlist[i].model,
strlen(scsi_dh->devlist[i].model))) {
found = 1;
break;
}
}
return found;
}
/*
* device_handler_match - Attach a device handler to a device
* @scsi_dh - The device handler to match against or NULL
* @sdev - SCSI device to be tested against @scsi_dh
*
* Tests @sdev against the device handler @scsi_dh or against
* all registered device_handler if @scsi_dh == NULL.
* Returns the found device handler or NULL if not found.
*/
static struct scsi_device_handler *
device_handler_match(struct scsi_device_handler *scsi_dh,
struct scsi_device *sdev)
{
struct scsi_device_handler *found_dh = NULL;
struct scsi_dh_devinfo_list *tmp;
found_dh = scsi_dh_cache_lookup(sdev);
if (found_dh)
return found_dh;
if (scsi_dh) {
if (scsi_dh_handler_lookup(scsi_dh, sdev))
found_dh = scsi_dh;
} else {
struct scsi_device_handler *tmp_dh;
spin_lock(&list_lock);
list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
if (scsi_dh_handler_lookup(tmp_dh, sdev))
found_dh = tmp_dh;
}
spin_unlock(&list_lock);
}
if (found_dh) { /* If device is found, add it to the cache */
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (tmp) {
strncpy(tmp->vendor, sdev->vendor, 8);
strncpy(tmp->model, sdev->model, 16);
tmp->vendor[8] = '\0';
tmp->model[16] = '\0';
tmp->handler = found_dh;
spin_lock(&list_lock);
list_add(&tmp->node, &scsi_dh_dev_list);
spin_unlock(&list_lock);
} else {
found_dh = NULL;
}
}
return found_dh;
}
/*
* scsi_dh_handler_attach - Attach a device handler to a device
* @sdev - SCSI device the device handler should attach to
* @scsi_dh - The device handler to attach
*/
static int scsi_dh_handler_attach(struct scsi_device *sdev,
struct scsi_device_handler *scsi_dh)
{
int err = 0;
if (sdev->scsi_dh_data) {
if (sdev->scsi_dh_data->scsi_dh != scsi_dh)
err = -EBUSY;
} else if (scsi_dh->attach)
err = scsi_dh->attach(sdev);
return err;
}
/*
* scsi_dh_handler_detach - Detach a device handler from a device
* @sdev - SCSI device the device handler should be detached from
* @scsi_dh - Device handler to be detached
*
* Detach from a device handler. If a device handler is specified,
* only detach if the currently attached handler matches @scsi_dh.
*/
static void scsi_dh_handler_detach(struct scsi_device *sdev,
struct scsi_device_handler *scsi_dh)
{
if (!sdev->scsi_dh_data)
return;
if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh)
return;
if (!scsi_dh)
scsi_dh = sdev->scsi_dh_data->scsi_dh;
if (scsi_dh && scsi_dh->detach)
scsi_dh->detach(sdev);
}
/*
* Functions for sysfs attribute 'dh_state'
*/
static ssize_t
store_dh_state(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct scsi_device_handler *scsi_dh;
int err = -EINVAL;
if (!sdev->scsi_dh_data) {
/*
* Attach to a device handler
*/
if (!(scsi_dh = get_device_handler(buf)))
return err;
err = scsi_dh_handler_attach(sdev, scsi_dh);
} else {
scsi_dh = sdev->scsi_dh_data->scsi_dh;
if (!strncmp(buf, "detach", 6)) {
/*
* Detach from a device handler
*/
scsi_dh_handler_detach(sdev, scsi_dh);
err = 0;
} else if (!strncmp(buf, "activate", 8)) {
/*
* Activate a device handler
*/
if (scsi_dh->activate)
err = scsi_dh->activate(sdev);
else
err = 0;
}
}
return err<0?err:count;
}
static ssize_t
show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
{
struct scsi_device *sdev = to_scsi_device(dev);
if (!sdev->scsi_dh_data)
return snprintf(buf, 20, "detached\n");
return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name);
}
static struct device_attribute scsi_dh_state_attr =
__ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
store_dh_state);
/*
* scsi_dh_sysfs_attr_add - Callback for scsi_init_dh
*/
static int scsi_dh_sysfs_attr_add(struct device *dev, void *data)
{
struct scsi_device *sdev;
int err;
if (!scsi_is_sdev_device(dev))
return 0;
sdev = to_scsi_device(dev);
err = device_create_file(&sdev->sdev_gendev,
&scsi_dh_state_attr);
return 0;
}
/*
* scsi_dh_sysfs_attr_remove - Callback for scsi_exit_dh
*/
static int scsi_dh_sysfs_attr_remove(struct device *dev, void *data)
{
struct scsi_device *sdev;
if (!scsi_is_sdev_device(dev))
return 0;
sdev = to_scsi_device(dev);
device_remove_file(&sdev->sdev_gendev,
&scsi_dh_state_attr);
return 0;
}
/*
* scsi_dh_notifier - notifier chain callback
*/
static int scsi_dh_notifier(struct notifier_block *nb,
unsigned long action, void *data)
{
struct device *dev = data;
struct scsi_device *sdev;
int err = 0;
struct scsi_device_handler *devinfo = NULL;
if (!scsi_is_sdev_device(dev))
return 0;
sdev = to_scsi_device(dev);
if (action == BUS_NOTIFY_ADD_DEVICE) {
devinfo = device_handler_match(NULL, sdev);
if (!devinfo)
goto out;
err = scsi_dh_handler_attach(sdev, devinfo);
if (!err)
err = device_create_file(dev, &scsi_dh_state_attr);
} else if (action == BUS_NOTIFY_DEL_DEVICE) {
device_remove_file(dev, &scsi_dh_state_attr);
scsi_dh_handler_detach(sdev, NULL);
}
out:
return err;
}
/*
* scsi_dh_notifier_add - Callback for scsi_register_device_handler
*/
static int scsi_dh_notifier_add(struct device *dev, void *data)
{
struct scsi_device_handler *scsi_dh = data;
struct scsi_device *sdev;
if (!scsi_is_sdev_device(dev))
return 0;
if (!get_device(dev))
return 0;
sdev = to_scsi_device(dev);
if (device_handler_match(scsi_dh, sdev))
scsi_dh_handler_attach(sdev, scsi_dh);
put_device(dev);
return 0;
}
/*
* scsi_dh_notifier_remove - Callback for scsi_unregister_device_handler
*/
static int scsi_dh_notifier_remove(struct device *dev, void *data)
{
struct scsi_device_handler *scsi_dh = data;
struct scsi_device *sdev;
if (!scsi_is_sdev_device(dev))
return 0;
if (!get_device(dev))
return 0;
sdev = to_scsi_device(dev);
scsi_dh_handler_detach(sdev, scsi_dh);
put_device(dev);
scsi_dh->nb.notifier_call(&scsi_dh->nb, BUS_NOTIFY_ADD_DEVICE, dev);
return 0;
}
@ -59,33 +363,19 @@ static int scsi_dh_notifier_add(struct device *dev, void *data)
*/
int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
{
int ret = -EBUSY;
struct scsi_device_handler *tmp;
if (get_device_handler(scsi_dh->name))
return -EBUSY;
tmp = get_device_handler(scsi_dh->name);
if (tmp)
goto done;
ret = bus_register_notifier(&scsi_bus_type, &scsi_dh->nb);
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
spin_lock(&list_lock);
list_add(&scsi_dh->list, &scsi_dh_list);
spin_unlock(&list_lock);
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
done:
return ret;
return SCSI_DH_OK;
}
EXPORT_SYMBOL_GPL(scsi_register_device_handler);
static int scsi_dh_notifier_remove(struct device *dev, void *data)
{
struct scsi_device_handler *scsi_dh = data;
scsi_dh->nb.notifier_call(&scsi_dh->nb, BUS_NOTIFY_DEL_DEVICE, dev);
return 0;
}
/*
* scsi_unregister_device_handler - register a device handler personality
* module.
@ -95,23 +385,26 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data)
*/
int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
{
int ret = -ENODEV;
struct scsi_device_handler *tmp;
struct scsi_dh_devinfo_list *tmp, *pos;
tmp = get_device_handler(scsi_dh->name);
if (!tmp)
goto done;
ret = bus_unregister_notifier(&scsi_bus_type, &scsi_dh->nb);
if (!get_device_handler(scsi_dh->name))
return -ENODEV;
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
scsi_dh_notifier_remove);
scsi_dh_notifier_remove);
spin_lock(&list_lock);
list_del(&scsi_dh->list);
list_for_each_entry_safe(pos, tmp, &scsi_dh_dev_list, node) {
if (pos->handler == scsi_dh) {
list_del(&pos->node);
kfree(pos);
}
}
spin_unlock(&list_lock);
printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
done:
return ret;
return SCSI_DH_OK;
}
EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
@ -157,6 +450,97 @@ int scsi_dh_handler_exist(const char *name)
}
EXPORT_SYMBOL_GPL(scsi_dh_handler_exist);
/*
* scsi_dh_handler_attach - Attach device handler
* @sdev - sdev the handler should be attached to
* @name - name of the handler to attach
*/
int scsi_dh_attach(struct request_queue *q, const char *name)
{
unsigned long flags;
struct scsi_device *sdev;
struct scsi_device_handler *scsi_dh;
int err = 0;
scsi_dh = get_device_handler(name);
if (!scsi_dh)
return -EINVAL;
spin_lock_irqsave(q->queue_lock, flags);
sdev = q->queuedata;
if (!sdev || !get_device(&sdev->sdev_gendev))
err = -ENODEV;
spin_unlock_irqrestore(q->queue_lock, flags);
if (!err) {
err = scsi_dh_handler_attach(sdev, scsi_dh);
put_device(&sdev->sdev_gendev);
}
return err;
}
EXPORT_SYMBOL_GPL(scsi_dh_attach);
/*
* scsi_dh_handler_detach - Detach device handler
* @sdev - sdev the handler should be detached from
*
* This function will detach the device handler only
* if the sdev is not part of the internal list, ie
* if it has been attached manually.
*/
void scsi_dh_detach(struct request_queue *q)
{
unsigned long flags;
struct scsi_device *sdev;
struct scsi_device_handler *scsi_dh = NULL;
spin_lock_irqsave(q->queue_lock, flags);
sdev = q->queuedata;
if (!sdev || !get_device(&sdev->sdev_gendev))
sdev = NULL;
spin_unlock_irqrestore(q->queue_lock, flags);
if (!sdev)
return;
if (sdev->scsi_dh_data) {
/* if sdev is not on internal list, detach */
scsi_dh = sdev->scsi_dh_data->scsi_dh;
if (!device_handler_match(scsi_dh, sdev))
scsi_dh_handler_detach(sdev, scsi_dh);
}
put_device(&sdev->sdev_gendev);
}
EXPORT_SYMBOL_GPL(scsi_dh_detach);
static struct notifier_block scsi_dh_nb = {
.notifier_call = scsi_dh_notifier
};
static int __init scsi_dh_init(void)
{
int r;
r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
if (!r)
bus_for_each_dev(&scsi_bus_type, NULL, NULL,
scsi_dh_sysfs_attr_add);
return r;
}
static void __exit scsi_dh_exit(void)
{
bus_for_each_dev(&scsi_bus_type, NULL, NULL,
scsi_dh_sysfs_attr_remove);
bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
}
module_init(scsi_dh_init);
module_exit(scsi_dh_exit);
MODULE_DESCRIPTION("SCSI device handler");
MODULE_AUTHOR("Chandra Seetharaman <sekharan@us.ibm.com>");
MODULE_LICENSE("GPL");

802
drivers/scsi/device_handler/scsi_dh_alua.c Normal file
View File

@ -0,0 +1,802 @@
/*
* Generic SCSI-3 ALUA SCSI Device Handler
*
* Copyright (C) 2007, 2008 Hannes Reinecke, SUSE Linux Products GmbH.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_dh.h>
#define ALUA_DH_NAME "alua"
#define ALUA_DH_VER "1.2"
#define TPGS_STATE_OPTIMIZED 0x0
#define TPGS_STATE_NONOPTIMIZED 0x1
#define TPGS_STATE_STANDBY 0x2
#define TPGS_STATE_UNAVAILABLE 0x3
#define TPGS_STATE_OFFLINE 0xe
#define TPGS_STATE_TRANSITIONING 0xf
#define TPGS_SUPPORT_NONE 0x00
#define TPGS_SUPPORT_OPTIMIZED 0x01
#define TPGS_SUPPORT_NONOPTIMIZED 0x02
#define TPGS_SUPPORT_STANDBY 0x04
#define TPGS_SUPPORT_UNAVAILABLE 0x08
#define TPGS_SUPPORT_OFFLINE 0x40
#define TPGS_SUPPORT_TRANSITION 0x80
#define TPGS_MODE_UNINITIALIZED -1
#define TPGS_MODE_NONE 0x0
#define TPGS_MODE_IMPLICIT 0x1
#define TPGS_MODE_EXPLICIT 0x2
#define ALUA_INQUIRY_SIZE 36
#define ALUA_FAILOVER_TIMEOUT (60 * HZ)
#define ALUA_FAILOVER_RETRIES 5
struct alua_dh_data {
int group_id;
int rel_port;
int tpgs;
int state;
unsigned char inq[ALUA_INQUIRY_SIZE];
unsigned char *buff;
int bufflen;
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int senselen;
};
#define ALUA_POLICY_SWITCH_CURRENT 0
#define ALUA_POLICY_SWITCH_ALL 1
static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data;
BUG_ON(scsi_dh_data == NULL);
return ((struct alua_dh_data *) scsi_dh_data->buf);
}
static int realloc_buffer(struct alua_dh_data *h, unsigned len)
{
if (h->buff && h->buff != h->inq)
kfree(h->buff);
h->buff = kmalloc(len, GFP_NOIO);
if (!h->buff) {
h->buff = h->inq;
h->bufflen = ALUA_INQUIRY_SIZE;
return 1;
}
h->bufflen = len;
return 0;
}
static struct request *get_alua_req(struct scsi_device *sdev,
void *buffer, unsigned buflen, int rw)
{
struct request *rq;
struct request_queue *q = sdev->request_queue;
rq = blk_get_request(q, rw, GFP_NOIO);
if (!rq) {
sdev_printk(KERN_INFO, sdev,
"%s: blk_get_request failed\n", __func__);
return NULL;
}
if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) {
blk_put_request(rq);
sdev_printk(KERN_INFO, sdev,
"%s: blk_rq_map_kern failed\n", __func__);
return NULL;
}
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
rq->retries = ALUA_FAILOVER_RETRIES;
rq->timeout = ALUA_FAILOVER_TIMEOUT;
return rq;
}
/*
* submit_std_inquiry - Issue a standard INQUIRY command
* @sdev: sdev the command should be send to
*/
static int submit_std_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
rq = get_alua_req(sdev, h->inq, ALUA_INQUIRY_SIZE, READ);
if (!rq)
goto done;
/* Prepare the command. */
rq->cmd[0] = INQUIRY;
rq->cmd[1] = 0;
rq->cmd[2] = 0;
rq->cmd[4] = ALUA_INQUIRY_SIZE;
rq->cmd_len = COMMAND_SIZE(INQUIRY);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = h->senselen = 0;
err = blk_execute_rq(rq->q, NULL, rq, 1);
if (err == -EIO) {
sdev_printk(KERN_INFO, sdev,
"%s: std inquiry failed with %x\n",
ALUA_DH_NAME, rq->errors);
h->senselen = rq->sense_len;
err = SCSI_DH_IO;
}
blk_put_request(rq);
done:
return err;
}
/*
* submit_vpd_inquiry - Issue an INQUIRY VPD page 0x83 command
* @sdev: sdev the command should be sent to
*/
static int submit_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
rq = get_alua_req(sdev, h->buff, h->bufflen, READ);
if (!rq)
goto done;
/* Prepare the command. */
rq->cmd[0] = INQUIRY;
rq->cmd[1] = 1;
rq->cmd[2] = 0x83;
rq->cmd[4] = h->bufflen;
rq->cmd_len = COMMAND_SIZE(INQUIRY);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = h->senselen = 0;
err = blk_execute_rq(rq->q, NULL, rq, 1);
if (err == -EIO) {
sdev_printk(KERN_INFO, sdev,
"%s: evpd inquiry failed with %x\n",
ALUA_DH_NAME, rq->errors);
h->senselen = rq->sense_len;
err = SCSI_DH_IO;
}
blk_put_request(rq);
done:
return err;
}
/*
* submit_rtpg - Issue a REPORT TARGET GROUP STATES command
* @sdev: sdev the command should be sent to
*/
static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
rq = get_alua_req(sdev, h->buff, h->bufflen, READ);
if (!rq)
goto done;
/* Prepare the command. */
rq->cmd[0] = MAINTENANCE_IN;
rq->cmd[1] = MI_REPORT_TARGET_PGS;
rq->cmd[6] = (h->bufflen >> 24) & 0xff;
rq->cmd[7] = (h->bufflen >> 16) & 0xff;
rq->cmd[8] = (h->bufflen >> 8) & 0xff;
rq->cmd[9] = h->bufflen & 0xff;
rq->cmd_len = COMMAND_SIZE(MAINTENANCE_IN);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = h->senselen = 0;
err = blk_execute_rq(rq->q, NULL, rq, 1);
if (err == -EIO) {
sdev_printk(KERN_INFO, sdev,
"%s: rtpg failed with %x\n",
ALUA_DH_NAME, rq->errors);
h->senselen = rq->sense_len;
err = SCSI_DH_IO;
}
blk_put_request(rq);
done:
return err;
}
/*
* submit_stpg - Issue a SET TARGET GROUP STATES command
* @sdev: sdev the command should be sent to
*
* Currently we're only setting the current target port group state
* to 'active/optimized' and let the array firmware figure out
* the states of the remaining groups.
*/
static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
int stpg_len = 8;
/* Prepare the data buffer */
memset(h->buff, 0, stpg_len);
h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f;
h->buff[6] = (h->group_id >> 8) & 0x0f;
h->buff[7] = h->group_id & 0x0f;
rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
if (!rq)
goto done;
/* Prepare the command. */
rq->cmd[0] = MAINTENANCE_OUT;
rq->cmd[1] = MO_SET_TARGET_PGS;
rq->cmd[6] = (stpg_len >> 24) & 0xff;
rq->cmd[7] = (stpg_len >> 16) & 0xff;
rq->cmd[8] = (stpg_len >> 8) & 0xff;
rq->cmd[9] = stpg_len & 0xff;
rq->cmd_len = COMMAND_SIZE(MAINTENANCE_OUT);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = h->senselen = 0;
err = blk_execute_rq(rq->q, NULL, rq, 1);
if (err == -EIO) {
sdev_printk(KERN_INFO, sdev,
"%s: stpg failed with %x\n",
ALUA_DH_NAME, rq->errors);
h->senselen = rq->sense_len;
err = SCSI_DH_IO;
}
blk_put_request(rq);
done:
return err;
}
/*
* alua_std_inquiry - Evaluate standard INQUIRY command
* @sdev: device to be checked
*
* Just extract the TPGS setting to find out if ALUA
* is supported.
*/
static int alua_std_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
{
int err;
err = submit_std_inquiry(sdev, h);
if (err != SCSI_DH_OK)
return err;
/* Check TPGS setting */
h->tpgs = (h->inq[5] >> 4) & 0x3;
switch (h->tpgs) {
case TPGS_MODE_EXPLICIT|TPGS_MODE_IMPLICIT:
sdev_printk(KERN_INFO, sdev,
"%s: supports implicit and explicit TPGS\n",
ALUA_DH_NAME);
break;
case TPGS_MODE_EXPLICIT:
sdev_printk(KERN_INFO, sdev, "%s: supports explicit TPGS\n",
ALUA_DH_NAME);
break;
case TPGS_MODE_IMPLICIT:
sdev_printk(KERN_INFO, sdev, "%s: supports implicit TPGS\n",
ALUA_DH_NAME);
break;
default:
h->tpgs = TPGS_MODE_NONE;
sdev_printk(KERN_INFO, sdev, "%s: not supported\n",
ALUA_DH_NAME);
err = SCSI_DH_DEV_UNSUPP;
break;
}
return err;
}
/*
* alua_vpd_inquiry - Evaluate INQUIRY vpd page 0x83
* @sdev: device to be checked
*
* Extract the relative target port and the target port group
* descriptor from the list of identificators.
*/
static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
{
int len;
unsigned err;
unsigned char *d;
retry:
err = submit_vpd_inquiry(sdev, h);
if (err != SCSI_DH_OK)
return err;
/* Check if vpd page exceeds initial buffer */
len = (h->buff[2] << 8) + h->buff[3] + 4;
if (len > h->bufflen) {
/* Resubmit with the correct length */
if (realloc_buffer(h, len)) {
sdev_printk(KERN_WARNING, sdev,
"%s: kmalloc buffer failed\n",
ALUA_DH_NAME);
/* Temporary failure, bypass */
return SCSI_DH_DEV_TEMP_BUSY;
}
goto retry;
}
/*
* Now look for the correct descriptor.
*/
d = h->buff + 4;
while (d < h->buff + len) {
switch (d[1] & 0xf) {
case 0x4:
/* Relative target port */
h->rel_port = (d[6] << 8) + d[7];
break;
case 0x5:
/* Target port group */
h->group_id = (d[6] << 8) + d[7];
break;
default:
break;
}
d += d[3] + 4;
}
if (h->group_id == -1) {
/*
* Internal error; TPGS supported but required
* VPD identification descriptors not present.
* Disable ALUA support
*/
sdev_printk(KERN_INFO, sdev,
"%s: No target port descriptors found\n",
ALUA_DH_NAME);
h->state = TPGS_STATE_OPTIMIZED;
h->tpgs = TPGS_MODE_NONE;
err = SCSI_DH_DEV_UNSUPP;
} else {
sdev_printk(KERN_INFO, sdev,
"%s: port group %02x rel port %02x\n",
ALUA_DH_NAME, h->group_id, h->rel_port);
}
return err;
}
static char print_alua_state(int state)
{
switch (state) {
case TPGS_STATE_OPTIMIZED:
return 'A';
case TPGS_STATE_NONOPTIMIZED:
return 'N';
case TPGS_STATE_STANDBY:
return 'S';
case TPGS_STATE_UNAVAILABLE:
return 'U';
case TPGS_STATE_OFFLINE:
return 'O';
case TPGS_STATE_TRANSITIONING:
return 'T';
default:
return 'X';
}
}
static int alua_check_sense(struct scsi_device *sdev,
struct scsi_sense_hdr *sense_hdr)
{
switch (sense_hdr->sense_key) {
case NOT_READY:
if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0a)
/*
* LUN Not Accessible - ALUA state transition
*/
return NEEDS_RETRY;
if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b)
/*
* LUN Not Accessible -- Target port in standby state
*/
return SUCCESS;
if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0c)
/*
* LUN Not Accessible -- Target port in unavailable state
*/
return SUCCESS;
if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x12)
/*
* LUN Not Ready -- Offline
*/
return SUCCESS;
break;
case UNIT_ATTENTION:
if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x00)
/*
* Power On, Reset, or Bus Device Reset, just retry.
*/
return NEEDS_RETRY;
if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) {
/*
* ALUA state changed
*/
return NEEDS_RETRY;
}
if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) {
/*
* Implicit ALUA state transition failed
*/
return NEEDS_RETRY;
}
break;
}
return SCSI_RETURN_NOT_HANDLED;
}
/*
* alua_stpg - Evaluate SET TARGET GROUP STATES
* @sdev: the device to be evaluated
* @state: the new target group state
*
* Send a SET TARGET GROUP STATES command to the device.
* We only have to test here if we should resubmit the command;
* any other error is assumed as a failure.
*/
static int alua_stpg(struct scsi_device *sdev, int state,
struct alua_dh_data *h)
{
struct scsi_sense_hdr sense_hdr;
unsigned err;
int retry = ALUA_FAILOVER_RETRIES;
retry:
err = submit_stpg(sdev, h);
if (err == SCSI_DH_IO && h->senselen > 0) {
err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr);
if (!err)
return SCSI_DH_IO;
err = alua_check_sense(sdev, &sense_hdr);
if (retry > 0 && err == NEEDS_RETRY) {
retry--;
goto retry;
}
sdev_printk(KERN_INFO, sdev,
"%s: stpg sense code: %02x/%02x/%02x\n",
ALUA_DH_NAME, sense_hdr.sense_key,
sense_hdr.asc, sense_hdr.ascq);
err = SCSI_DH_IO;
}
if (err == SCSI_DH_OK) {
h->state = state;
sdev_printk(KERN_INFO, sdev,
"%s: port group %02x switched to state %c\n",
ALUA_DH_NAME, h->group_id,
print_alua_state(h->state) );
}
return err;
}
/*
* alua_rtpg - Evaluate REPORT TARGET GROUP STATES
* @sdev: the device to be evaluated.
*
* Evaluate the Target Port Group State.
* Returns SCSI_DH_DEV_OFFLINED if the path is
* found to be unuseable.
*/
static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
{
struct scsi_sense_hdr sense_hdr;
int len, k, off, valid_states = 0;
char *ucp;
unsigned err;
retry:
err = submit_rtpg(sdev, h);
if (err == SCSI_DH_IO && h->senselen > 0) {
err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr);
if (!err)
return SCSI_DH_IO;
err = alua_check_sense(sdev, &sense_hdr);
if (err == NEEDS_RETRY)
goto retry;
sdev_printk(KERN_INFO, sdev,
"%s: rtpg sense code %02x/%02x/%02x\n",
ALUA_DH_NAME, sense_hdr.sense_key,
sense_hdr.asc, sense_hdr.ascq);
err = SCSI_DH_IO;
}
if (err != SCSI_DH_OK)
return err;
len = (h->buff[0] << 24) + (h->buff[1] << 16) +
(h->buff[2] << 8) + h->buff[3] + 4;
if (len > h->bufflen) {
/* Resubmit with the correct length */
if (realloc_buffer(h, len)) {
sdev_printk(KERN_WARNING, sdev,
"%s: kmalloc buffer failed\n",__func__);
/* Temporary failure, bypass */
return SCSI_DH_DEV_TEMP_BUSY;
}
goto retry;
}
for (k = 4, ucp = h->buff + 4; k < len; k += off, ucp += off) {
if (h->group_id == (ucp[2] << 8) + ucp[3]) {
h->state = ucp[0] & 0x0f;
valid_states = ucp[1];
}
off = 8 + (ucp[7] * 4);
}
sdev_printk(KERN_INFO, sdev,
"%s: port group %02x state %c supports %c%c%c%c%c%c\n",
ALUA_DH_NAME, h->group_id, print_alua_state(h->state),
valid_states&TPGS_SUPPORT_TRANSITION?'T':'t',
valid_states&TPGS_SUPPORT_OFFLINE?'O':'o',
valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u',
valid_states&TPGS_SUPPORT_STANDBY?'S':'s',
valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n',
valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a');
if (h->tpgs & TPGS_MODE_EXPLICIT) {
switch (h->state) {
case TPGS_STATE_TRANSITIONING:
/* State transition, retry */
goto retry;
break;
case TPGS_STATE_OFFLINE:
/* Path is offline, fail */
err = SCSI_DH_DEV_OFFLINED;
break;
default:
break;
}
} else {
/* Only Implicit ALUA support */
if (h->state == TPGS_STATE_OPTIMIZED ||
h->state == TPGS_STATE_NONOPTIMIZED ||
h->state == TPGS_STATE_STANDBY)
/* Useable path if active */
err = SCSI_DH_OK;
else
/* Path unuseable for unavailable/offline */
err = SCSI_DH_DEV_OFFLINED;
}
return err;
}
/*
* alua_initialize - Initialize ALUA state
* @sdev: the device to be initialized
*
* For the prep_fn to work correctly we have
* to initialize the ALUA state for the device.
*/
static int alua_initialize(struct scsi_device *sdev, struct alua_dh_data *h)
{
int err;
err = alua_std_inquiry(sdev, h);
if (err != SCSI_DH_OK)
goto out;
err = alua_vpd_inquiry(sdev, h);
if (err != SCSI_DH_OK)
goto out;
err = alua_rtpg(sdev, h);
if (err != SCSI_DH_OK)
goto out;
out:
return err;
}
/*
* alua_activate - activate a path
* @sdev: device on the path to be activated
*
* We're currently switching the port group to be activated only and
* let the array figure out the rest.
* There may be other arrays which require us to switch all port groups
* based on a certain policy. But until we actually encounter them it
* should be okay.
*/
static int alua_activate(struct scsi_device *sdev)
{
struct alua_dh_data *h = get_alua_data(sdev);
int err = SCSI_DH_OK;
if (h->group_id != -1) {
err = alua_rtpg(sdev, h);
if (err != SCSI_DH_OK)
goto out;
}
if (h->tpgs == TPGS_MODE_EXPLICIT && h->state != TPGS_STATE_OPTIMIZED)
err = alua_stpg(sdev, TPGS_STATE_OPTIMIZED, h);
out:
return err;
}
/*
* alua_prep_fn - request callback
*
* Fail I/O to all paths not in state
* active/optimized or active/non-optimized.
*/
static int alua_prep_fn(struct scsi_device *sdev, struct request *req)
{
struct alua_dh_data *h = get_alua_data(sdev);
int ret = BLKPREP_OK;
if (h->state != TPGS_STATE_OPTIMIZED &&
h->state != TPGS_STATE_NONOPTIMIZED) {
ret = BLKPREP_KILL;
req->cmd_flags |= REQ_QUIET;
}
return ret;
}
const struct scsi_dh_devlist alua_dev_list[] = {
{"HP", "MSA VOLUME" },
{"HP", "HSV101" },
{"HP", "HSV111" },
{"HP", "HSV200" },
{"HP", "HSV210" },
{"HP", "HSV300" },
{"IBM", "2107900" },
{"IBM", "2145" },
{"Pillar", "Axiom" },
{NULL, NULL}
};
static int alua_bus_attach(struct scsi_device *sdev);
static void alua_bus_detach(struct scsi_device *sdev);
static struct scsi_device_handler alua_dh = {
.name = ALUA_DH_NAME,
.module = THIS_MODULE,
.devlist = alua_dev_list,
.attach = alua_bus_attach,
.detach = alua_bus_detach,
.prep_fn = alua_prep_fn,
.check_sense = alua_check_sense,
.activate = alua_activate,
};
/*
* alua_bus_attach - Attach device handler
* @sdev: device to be attached to
*/
static int alua_bus_attach(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data;
struct alua_dh_data *h;
unsigned long flags;
int err = SCSI_DH_OK;
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
ALUA_DH_NAME);
return -ENOMEM;
}
scsi_dh_data->scsi_dh = &alua_dh;
h = (struct alua_dh_data *) scsi_dh_data->buf;
h->tpgs = TPGS_MODE_UNINITIALIZED;
h->state = TPGS_STATE_OPTIMIZED;
h->group_id = -1;
h->rel_port = -1;
h->buff = h->inq;
h->bufflen = ALUA_INQUIRY_SIZE;
err = alua_initialize(sdev, h);
if (err != SCSI_DH_OK)
goto failed;
if (!try_module_get(THIS_MODULE))
goto failed;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
return 0;
failed:
kfree(scsi_dh_data);
sdev_printk(KERN_ERR, sdev, "%s: not attached\n", ALUA_DH_NAME);
return -EINVAL;
}
/*
* alua_bus_detach - Detach device handler
* @sdev: device to be detached from
*/
static void alua_bus_detach(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data;
struct alua_dh_data *h;
unsigned long flags;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
h = (struct alua_dh_data *) scsi_dh_data->buf;
if (h->buff && h->inq != h->buff)
kfree(h->buff);
kfree(scsi_dh_data);
module_put(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", ALUA_DH_NAME);
}
static int __init alua_init(void)
{
int r;
r = scsi_register_device_handler(&alua_dh);
if (r != 0)
printk(KERN_ERR "%s: Failed to register scsi device handler",
ALUA_DH_NAME);
return r;
}
static void __exit alua_exit(void)
{
scsi_unregister_device_handler(&alua_dh);
}
module_init(alua_init);
module_exit(alua_exit);
MODULE_DESCRIPTION("DM Multipath ALUA support");
MODULE_AUTHOR("Hannes Reinecke <hare@suse.de>");
MODULE_LICENSE("GPL");
MODULE_VERSION(ALUA_DH_VER);

656
drivers/scsi/device_handler/scsi_dh_emc.c
View File

@ -25,28 +25,31 @@
#include <scsi/scsi_dh.h>
#include <scsi/scsi_device.h>
#define CLARIION_NAME "emc_clariion"
#define CLARIION_NAME "emc"
#define CLARIION_TRESPASS_PAGE 0x22
#define CLARIION_BUFFER_SIZE 0x80
#define CLARIION_BUFFER_SIZE 0xFC
#define CLARIION_TIMEOUT (60 * HZ)
#define CLARIION_RETRIES 3
#define CLARIION_UNBOUND_LU -1
#define CLARIION_SP_A 0
#define CLARIION_SP_B 1
/* Flags */
#define CLARIION_SHORT_TRESPASS 1
#define CLARIION_HONOR_RESERVATIONS 2
/* LUN states */
#define CLARIION_LUN_UNINITIALIZED -1
#define CLARIION_LUN_UNBOUND 0
#define CLARIION_LUN_BOUND 1
#define CLARIION_LUN_OWNED 2
static unsigned char long_trespass[] = {
0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
CLARIION_TRESPASS_PAGE, /* Page code */
0x09, /* Page length - 2 */
0x81, /* Trespass code + Honor reservation bit */
0xff, 0xff, /* Trespass target */
0, 0, 0, 0, 0, 0 /* Reserved bytes / unknown */
};
static unsigned char long_trespass_hr[] = {
0, 0, 0, 0,
CLARIION_TRESPASS_PAGE, /* Page code */
0x09, /* Page length - 2 */
0x01, /* Trespass code + Honor reservation bit */
0x01, /* Trespass code */
0xff, 0xff, /* Trespass target */
0, 0, 0, 0, 0, 0 /* Reserved bytes / unknown */
};
@ -55,39 +58,56 @@ static unsigned char short_trespass[] = {
0, 0, 0, 0,
CLARIION_TRESPASS_PAGE, /* Page code */
0x02, /* Page length - 2 */
0x81, /* Trespass code + Honor reservation bit */
0x01, /* Trespass code */
0xff, /* Trespass target */
};
static unsigned char short_trespass_hr[] = {
0, 0, 0, 0,
CLARIION_TRESPASS_PAGE, /* Page code */
0x02, /* Page length - 2 */
0x01, /* Trespass code + Honor reservation bit */
0xff, /* Trespass target */
static const char * lun_state[] =
{
"not bound",
"bound",
"owned",
};
struct clariion_dh_data {
/*
* Flags:
* CLARIION_SHORT_TRESPASS
* Use short trespass command (FC-series) or the long version
* (default for AX/CX CLARiiON arrays).
*/
unsigned short_trespass;
/*
*
* CLARIION_HONOR_RESERVATIONS
* Whether or not (default) to honor SCSI reservations when
* initiating a switch-over.
*/
unsigned hr;
/* I/O buffer for both MODE_SELECT and INQUIRY commands. */
unsigned flags;
/*
* I/O buffer for both MODE_SELECT and INQUIRY commands.
*/
char buffer[CLARIION_BUFFER_SIZE];
/*
* SCSI sense buffer for commands -- assumes serial issuance
* and completion sequence of all commands for same multipath.
*/
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
/* which SP (A=0,B=1,UNBOUND=-1) is dflt SP for path's mapped dev */
unsigned int senselen;
/*
* LUN state
*/
int lun_state;
/*
* SP Port number
*/
int port;
/*
* which SP (A=0,B=1,UNBOUND=-1) is the default SP for this
* path's mapped LUN
*/
int default_sp;
/* which SP (A=0,B=1,UNBOUND=-1) is active for path's mapped dev */
/*
* which SP (A=0,B=1,UNBOUND=-1) is the active SP for this
* path's mapped LUN
*/
int current_sp;
};
@ -102,19 +122,16 @@ static inline struct clariion_dh_data
/*
* Parse MODE_SELECT cmd reply.
*/
static int trespass_endio(struct scsi_device *sdev, int result)
static int trespass_endio(struct scsi_device *sdev, char *sense)
{
int err = SCSI_DH_OK;
int err = SCSI_DH_IO;
struct scsi_sense_hdr sshdr;
struct clariion_dh_data *csdev = get_clariion_data(sdev);
char *sense = csdev->sense;
if (status_byte(result) == CHECK_CONDITION &&
scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr)) {
sdev_printk(KERN_ERR, sdev, "Found valid sense data 0x%2x, "
if (!scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr)) {
sdev_printk(KERN_ERR, sdev, "%s: Found valid sense data 0x%2x, "
"0x%2x, 0x%2x while sending CLARiiON trespass "
"command.\n", sshdr.sense_key, sshdr.asc,
sshdr.ascq);
"command.\n", CLARIION_NAME, sshdr.sense_key,
sshdr.asc, sshdr.ascq);
if ((sshdr.sense_key == 0x05) && (sshdr.asc == 0x04) &&
(sshdr.ascq == 0x00)) {
@ -122,9 +139,9 @@ static int trespass_endio(struct scsi_device *sdev, int result)
* Array based copy in progress -- do not send
* mode_select or copy will be aborted mid-stream.
*/
sdev_printk(KERN_INFO, sdev, "Array Based Copy in "
sdev_printk(KERN_INFO, sdev, "%s: Array Based Copy in "
"progress while sending CLARiiON trespass "
"command.\n");
"command.\n", CLARIION_NAME);
err = SCSI_DH_DEV_TEMP_BUSY;
} else if ((sshdr.sense_key == 0x02) && (sshdr.asc == 0x04) &&
(sshdr.ascq == 0x03)) {
@ -132,160 +149,153 @@ static int trespass_endio(struct scsi_device *sdev, int result)
* LUN Not Ready - Manual Intervention Required
* indicates in-progress ucode upgrade (NDU).
*/
sdev_printk(KERN_INFO, sdev, "Detected in-progress "
sdev_printk(KERN_INFO, sdev, "%s: Detected in-progress "
"ucode upgrade NDU operation while sending "
"CLARiiON trespass command.\n");
"CLARiiON trespass command.\n", CLARIION_NAME);
err = SCSI_DH_DEV_TEMP_BUSY;
} else
err = SCSI_DH_DEV_FAILED;
} else if (result) {
sdev_printk(KERN_ERR, sdev, "Error 0x%x while sending "
"CLARiiON trespass command.\n", result);
err = SCSI_DH_IO;
} else {
sdev_printk(KERN_INFO, sdev,
"%s: failed to send MODE SELECT, no sense available\n",
CLARIION_NAME);
}
return err;
}
static int parse_sp_info_reply(struct scsi_device *sdev, int result,
int *default_sp, int *current_sp, int *new_current_sp)
static int parse_sp_info_reply(struct scsi_device *sdev,
struct clariion_dh_data *csdev)
{
int err = SCSI_DH_OK;
struct clariion_dh_data *csdev = get_clariion_data(sdev);
if (result == 0) {
/* check for in-progress ucode upgrade (NDU) */
if (csdev->buffer[48] != 0) {
sdev_printk(KERN_NOTICE, sdev, "Detected in-progress "
"ucode upgrade NDU operation while finding "
"current active SP.");
err = SCSI_DH_DEV_TEMP_BUSY;
} else {
*default_sp = csdev->buffer[5];
if (csdev->buffer[4] == 2)
/* SP for path is current */
*current_sp = csdev->buffer[8];
else {
if (csdev->buffer[4] == 1)
/* SP for this path is NOT current */
if (csdev->buffer[8] == 0)
*current_sp = 1;
else
*current_sp = 0;
else
/* unbound LU or LUNZ */
*current_sp = CLARIION_UNBOUND_LU;
}
*new_current_sp = csdev->buffer[8];
}
} else {
struct scsi_sense_hdr sshdr;
err = SCSI_DH_IO;
if (scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE,
&sshdr))
sdev_printk(KERN_ERR, sdev, "Found valid sense data "
"0x%2x, 0x%2x, 0x%2x while finding current "
"active SP.", sshdr.sense_key, sshdr.asc,
sshdr.ascq);
else
sdev_printk(KERN_ERR, sdev, "Error 0x%x finding "
"current active SP.", result);
/* check for in-progress ucode upgrade (NDU) */
if (csdev->buffer[48] != 0) {
sdev_printk(KERN_NOTICE, sdev, "%s: Detected in-progress "
"ucode upgrade NDU operation while finding "
"current active SP.", CLARIION_NAME);
err = SCSI_DH_DEV_TEMP_BUSY;
goto out;
}
if (csdev->buffer[4] < 0 || csdev->buffer[4] > 2) {
/* Invalid buffer format */
sdev_printk(KERN_NOTICE, sdev,
"%s: invalid VPD page 0xC0 format\n",
CLARIION_NAME);
err = SCSI_DH_NOSYS;
goto out;
}
switch (csdev->buffer[28] & 0x0f) {
case 6:
sdev_printk(KERN_NOTICE, sdev,
"%s: ALUA failover mode detected\n",
CLARIION_NAME);
break;
case 4:
/* Linux failover */
break;
default:
sdev_printk(KERN_WARNING, sdev,
"%s: Invalid failover mode %d\n",
CLARIION_NAME, csdev->buffer[28] & 0x0f);
err = SCSI_DH_NOSYS;
goto out;
}
csdev->default_sp = csdev->buffer[5];
csdev->lun_state = csdev->buffer[4];
csdev->current_sp = csdev->buffer[8];
csdev->port = csdev->buffer[7];
out:
return err;
}
static int sp_info_endio(struct scsi_device *sdev, int result,
int mode_select_sent, int *done)
#define emc_default_str "FC (Legacy)"
static char * parse_sp_model(struct scsi_device *sdev, unsigned char *buffer)
{
struct clariion_dh_data *csdev = get_clariion_data(sdev);
int err_flags, default_sp, current_sp, new_current_sp;
unsigned char len = buffer[4] + 5;
char *sp_model = NULL;
unsigned char sp_len, serial_len;
err_flags = parse_sp_info_reply(sdev, result, &default_sp,
&current_sp, &new_current_sp);
if (err_flags != SCSI_DH_OK)
goto done;
if (mode_select_sent) {
csdev->default_sp = default_sp;
csdev->current_sp = current_sp;
} else {
/*
* Issue the actual module_selec request IFF either
* (1) we do not know the identity of the current SP OR
* (2) what we think we know is actually correct.
*/
if ((current_sp != CLARIION_UNBOUND_LU) &&
(new_current_sp != current_sp)) {
csdev->default_sp = default_sp;
csdev->current_sp = current_sp;
sdev_printk(KERN_INFO, sdev, "Ignoring path group "
"switch-over command for CLARiiON SP%s since "
" mapped device is already initialized.",
current_sp ? "B" : "A");
if (done)
*done = 1; /* as good as doing it */
if (len < 160) {
sdev_printk(KERN_WARNING, sdev,
"%s: Invalid information section length %d\n",
CLARIION_NAME, len);
/* Check for old FC arrays */
if (!strncmp(buffer + 8, "DGC", 3)) {
/* Old FC array, not supporting extended information */
sp_model = emc_default_str;
}
goto out;
}
done:
return err_flags;
/*
* Parse extended information for SP model number
*/
serial_len = buffer[160];
if (serial_len == 0 || serial_len + 161 > len) {
sdev_printk(KERN_WARNING, sdev,
"%s: Invalid array serial number length %d\n",
CLARIION_NAME, serial_len);
goto out;
}
sp_len = buffer[99];
if (sp_len == 0 || serial_len + sp_len + 161 > len) {
sdev_printk(KERN_WARNING, sdev,
"%s: Invalid model number length %d\n",
CLARIION_NAME, sp_len);
goto out;
}
sp_model = &buffer[serial_len + 161];
/* Strip whitespace at the end */
while (sp_len > 1 && sp_model[sp_len - 1] == ' ')
sp_len--;
sp_model[sp_len] = '\0';
out:
return sp_model;
}
/*
* Get block request for REQ_BLOCK_PC command issued to path. Currently
* limited to MODE_SELECT (trespass) and INQUIRY (VPD page 0xC0) commands.
*
* Uses data and sense buffers in hardware handler context structure and
* assumes serial servicing of commands, both issuance and completion.
*/
static struct request *get_req(struct scsi_device *sdev, int cmd)
* Get block request for REQ_BLOCK_PC command issued to path. Currently
* limited to MODE_SELECT (trespass) and INQUIRY (VPD page 0xC0) commands.
*
* Uses data and sense buffers in hardware handler context structure and
* assumes serial servicing of commands, both issuance and completion.
*/
static struct request *get_req(struct scsi_device *sdev, int cmd,
unsigned char *buffer)
{
struct clariion_dh_data *csdev = get_clariion_data(sdev);
struct request *rq;
unsigned char *page22;
int len = 0;
rq = blk_get_request(sdev->request_queue,
(cmd == MODE_SELECT) ? WRITE : READ, GFP_ATOMIC);
(cmd == MODE_SELECT) ? WRITE : READ, GFP_NOIO);
if (!rq) {
sdev_printk(KERN_INFO, sdev, "get_req: blk_get_request failed");
return NULL;
}
memset(&rq->cmd, 0, BLK_MAX_CDB);
memset(rq->cmd, 0, BLK_MAX_CDB);
rq->cmd_len = COMMAND_SIZE(cmd);
rq->cmd[0] = cmd;
rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);
switch (cmd) {
case MODE_SELECT:
if (csdev->short_trespass) {
page22 = csdev->hr ? short_trespass_hr : short_trespass;
len = sizeof(short_trespass);
} else {
page22 = csdev->hr ? long_trespass_hr : long_trespass;
len = sizeof(long_trespass);
}
/*
* Can't DMA from kernel BSS -- must copy selected trespass
* command mode page contents to context buffer which is
* allocated by kmalloc.
*/
BUG_ON((len > CLARIION_BUFFER_SIZE));
memcpy(csdev->buffer, page22, len);
len = sizeof(short_trespass);
rq->cmd_flags |= REQ_RW;
rq->cmd[1] = 0x10;
break;
case MODE_SELECT_10:
len = sizeof(long_trespass);
rq->cmd_flags |= REQ_RW;
rq->cmd[1] = 0x10;
break;
case INQUIRY:
rq->cmd[1] = 0x1;
rq->cmd[2] = 0xC0;
len = CLARIION_BUFFER_SIZE;
memset(csdev->buffer, 0, CLARIION_BUFFER_SIZE);
memset(buffer, 0, len);
break;
default:
BUG_ON(1);
@ -298,47 +308,94 @@ static struct request *get_req(struct scsi_device *sdev, int cmd)
rq->timeout = CLARIION_TIMEOUT;
rq->retries = CLARIION_RETRIES;
rq->sense = csdev->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = 0;
if (blk_rq_map_kern(sdev->request_queue, rq, csdev->buffer,
len, GFP_ATOMIC)) {
__blk_put_request(rq->q, rq);
if (blk_rq_map_kern(rq->q, rq, buffer, len, GFP_NOIO)) {
blk_put_request(rq);
return NULL;
}
return rq;
}
static int send_cmd(struct scsi_device *sdev, int cmd)
static int send_inquiry_cmd(struct scsi_device *sdev, int page,
struct clariion_dh_data *csdev)
{
struct request *rq = get_req(sdev, cmd);
struct request *rq = get_req(sdev, INQUIRY, csdev->buffer);
int err;
if (!rq)
return SCSI_DH_RES_TEMP_UNAVAIL;
return blk_execute_rq(sdev->request_queue, NULL, rq, 1);
rq->sense = csdev->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = csdev->senselen = 0;
rq->cmd[0] = INQUIRY;
if (page != 0) {
rq->cmd[1] = 1;
rq->cmd[2] = page;
}
err = blk_execute_rq(sdev->request_queue, NULL, rq, 1);
if (err == -EIO) {
sdev_printk(KERN_INFO, sdev,
"%s: failed to send %s INQUIRY: %x\n",
CLARIION_NAME, page?"EVPD":"standard",
rq->errors);
csdev->senselen = rq->sense_len;
err = SCSI_DH_IO;
}
blk_put_request(rq);
return err;
}
static int clariion_activate(struct scsi_device *sdev)
static int send_trespass_cmd(struct scsi_device *sdev,
struct clariion_dh_data *csdev)
{
int result, done = 0;
struct request *rq;
unsigned char *page22;
int err, len, cmd;
result = send_cmd(sdev, INQUIRY);
result = sp_info_endio(sdev, result, 0, &done);
if (result || done)
goto done;
if (csdev->flags & CLARIION_SHORT_TRESPASS) {
page22 = short_trespass;
if (!(csdev->flags & CLARIION_HONOR_RESERVATIONS))
/* Set Honor Reservations bit */
page22[6] |= 0x80;
len = sizeof(short_trespass);
cmd = MODE_SELECT;
} else {
page22 = long_trespass;
if (!(csdev->flags & CLARIION_HONOR_RESERVATIONS))
/* Set Honor Reservations bit */
page22[10] |= 0x80;
len = sizeof(long_trespass);
cmd = MODE_SELECT_10;
}
BUG_ON((len > CLARIION_BUFFER_SIZE));
memcpy(csdev->buffer, page22, len);
result = send_cmd(sdev, MODE_SELECT);
result = trespass_endio(sdev, result);
if (result)
goto done;
rq = get_req(sdev, cmd, csdev->buffer);
if (!rq)
return SCSI_DH_RES_TEMP_UNAVAIL;
result = send_cmd(sdev, INQUIRY);
result = sp_info_endio(sdev, result, 1, NULL);
done:
return result;
rq->sense = csdev->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = csdev->senselen = 0;
err = blk_execute_rq(sdev->request_queue, NULL, rq, 1);
if (err == -EIO) {
if (rq->sense_len) {
err = trespass_endio(sdev, csdev->sense);
} else {
sdev_printk(KERN_INFO, sdev,
"%s: failed to send MODE SELECT: %x\n",
CLARIION_NAME, rq->errors);
}
}
blk_put_request(rq);
return err;
}
static int clariion_check_sense(struct scsi_device *sdev,
@ -386,99 +443,215 @@ static int clariion_check_sense(struct scsi_device *sdev,
break;
}
/* success just means we do not care what scsi-ml does */
return SUCCESS;
return SCSI_RETURN_NOT_HANDLED;
}
static const struct {
char *vendor;
char *model;
} clariion_dev_list[] = {
static int clariion_prep_fn(struct scsi_device *sdev, struct request *req)
{
struct clariion_dh_data *h = get_clariion_data(sdev);
int ret = BLKPREP_OK;
if (h->lun_state != CLARIION_LUN_OWNED) {
ret = BLKPREP_KILL;
req->cmd_flags |= REQ_QUIET;
}
return ret;
}
static int clariion_std_inquiry(struct scsi_device *sdev,
struct clariion_dh_data *csdev)
{
int err;
char *sp_model;
err = send_inquiry_cmd(sdev, 0, csdev);
if (err != SCSI_DH_OK && csdev->senselen) {
struct scsi_sense_hdr sshdr;
if (scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE,
&sshdr)) {
sdev_printk(KERN_ERR, sdev, "%s: INQUIRY sense code "
"%02x/%02x/%02x\n", CLARIION_NAME,
sshdr.sense_key, sshdr.asc, sshdr.ascq);
}
err = SCSI_DH_IO;
goto out;
}
sp_model = parse_sp_model(sdev, csdev->buffer);
if (!sp_model) {
err = SCSI_DH_DEV_UNSUPP;
goto out;
}
/*
* FC Series arrays do not support long trespass
*/
if (!strlen(sp_model) || !strncmp(sp_model, "FC",2))
csdev->flags |= CLARIION_SHORT_TRESPASS;
sdev_printk(KERN_INFO, sdev,
"%s: detected Clariion %s, flags %x\n",
CLARIION_NAME, sp_model, csdev->flags);
out:
return err;
}
static int clariion_send_inquiry(struct scsi_device *sdev,
struct clariion_dh_data *csdev)
{
int err, retry = CLARIION_RETRIES;
retry:
err = send_inquiry_cmd(sdev, 0xC0, csdev);
if (err != SCSI_DH_OK && csdev->senselen) {
struct scsi_sense_hdr sshdr;
err = scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE,
&sshdr);
if (!err)
return SCSI_DH_IO;
err = clariion_check_sense(sdev, &sshdr);
if (retry > 0 && err == NEEDS_RETRY) {
retry--;
goto retry;
}
sdev_printk(KERN_ERR, sdev, "%s: INQUIRY sense code "
"%02x/%02x/%02x\n", CLARIION_NAME,
sshdr.sense_key, sshdr.asc, sshdr.ascq);
err = SCSI_DH_IO;
} else {
err = parse_sp_info_reply(sdev, csdev);
}
return err;
}
static int clariion_activate(struct scsi_device *sdev)
{
struct clariion_dh_data *csdev = get_clariion_data(sdev);
int result;
result = clariion_send_inquiry(sdev, csdev);
if (result != SCSI_DH_OK)
goto done;
if (csdev->lun_state == CLARIION_LUN_OWNED)
goto done;
result = send_trespass_cmd(sdev, csdev);
if (result != SCSI_DH_OK)
goto done;
sdev_printk(KERN_INFO, sdev,"%s: %s trespass command sent\n",
CLARIION_NAME,
csdev->flags&CLARIION_SHORT_TRESPASS?"short":"long" );
/* Update status */
result = clariion_send_inquiry(sdev, csdev);
if (result != SCSI_DH_OK)
goto done;
done:
sdev_printk(KERN_INFO, sdev,
"%s: at SP %c Port %d (%s, default SP %c)\n",
CLARIION_NAME, csdev->current_sp + 'A',
csdev->port, lun_state[csdev->lun_state],
csdev->default_sp + 'A');
return result;
}
const struct scsi_dh_devlist clariion_dev_list[] = {
{"DGC", "RAID"},
{"DGC", "DISK"},
{"DGC", "VRAID"},
{NULL, NULL},
};
static int clariion_bus_notify(struct notifier_block *, unsigned long, void *);
static int clariion_bus_attach(struct scsi_device *sdev);
static void clariion_bus_detach(struct scsi_device *sdev);
static struct scsi_device_handler clariion_dh = {
.name = CLARIION_NAME,
.module = THIS_MODULE,
.nb.notifier_call = clariion_bus_notify,
.devlist = clariion_dev_list,
.attach = clariion_bus_attach,
.detach = clariion_bus_detach,
.check_sense = clariion_check_sense,
.activate = clariion_activate,
.prep_fn = clariion_prep_fn,
};
/*
* TODO: need some interface so we can set trespass values
*/
static int clariion_bus_notify(struct notifier_block *nb,
unsigned long action, void *data)
static int clariion_bus_attach(struct scsi_device *sdev)
{
struct device *dev = data;
struct scsi_device *sdev;
struct scsi_dh_data *scsi_dh_data;
struct clariion_dh_data *h;
int i, found = 0;
unsigned long flags;
int err;
if (!scsi_is_sdev_device(dev))
return 0;
sdev = to_scsi_device(dev);
if (action == BUS_NOTIFY_ADD_DEVICE) {
for (i = 0; clariion_dev_list[i].vendor; i++) {
if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
strlen(clariion_dev_list[i].vendor)) &&
!strncmp(sdev->model, clariion_dev_list[i].model,
strlen(clariion_dev_list[i].model))) {
found = 1;
break;
}
}
if (!found)
goto out;
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n",
CLARIION_NAME);
goto out;
}
scsi_dh_data->scsi_dh = &clariion_dh;
h = (struct clariion_dh_data *) scsi_dh_data->buf;
h->default_sp = CLARIION_UNBOUND_LU;
h->current_sp = CLARIION_UNBOUND_LU;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", CLARIION_NAME);
try_module_get(THIS_MODULE);
} else if (action == BUS_NOTIFY_DEL_DEVICE) {
if (sdev->scsi_dh_data == NULL ||
sdev->scsi_dh_data->scsi_dh != &clariion_dh)
goto out;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n",
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
CLARIION_NAME);
kfree(scsi_dh_data);
module_put(THIS_MODULE);
return -ENOMEM;
}
out:
scsi_dh_data->scsi_dh = &clariion_dh;
h = (struct clariion_dh_data *) scsi_dh_data->buf;
h->lun_state = CLARIION_LUN_UNINITIALIZED;
h->default_sp = CLARIION_UNBOUND_LU;
h->current_sp = CLARIION_UNBOUND_LU;
err = clariion_std_inquiry(sdev, h);
if (err != SCSI_DH_OK)
goto failed;
err = clariion_send_inquiry(sdev, h);
if (err != SCSI_DH_OK)
goto failed;
if (!try_module_get(THIS_MODULE))
goto failed;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_INFO, sdev,
"%s: connected to SP %c Port %d (%s, default SP %c)\n",
CLARIION_NAME, h->current_sp + 'A',
h->port, lun_state[h->lun_state],
h->default_sp + 'A');
return 0;
failed:
kfree(scsi_dh_data);
sdev_printk(KERN_ERR, sdev, "%s: not attached\n",
CLARIION_NAME);
return -EINVAL;
}
static void clariion_bus_detach(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data;
unsigned long flags;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n",
CLARIION_NAME);
kfree(scsi_dh_data);
module_put(THIS_MODULE);
}
static int __init clariion_init(void)
@ -487,7 +660,8 @@ static int __init clariion_init(void)
r = scsi_register_device_handler(&clariion_dh);
if (r != 0)
printk(KERN_ERR "Failed to register scsi device handler.");
printk(KERN_ERR "%s: Failed to register scsi device handler.",
CLARIION_NAME);
return r;
}

358
drivers/scsi/device_handler/scsi_dh_hp_sw.c
View File

@ -4,6 +4,7 @@
*
* Copyright (C) 2006 Red Hat, Inc. All rights reserved.
* Copyright (C) 2006 Mike Christie
* Copyright (C) 2008 Hannes Reinecke <hare@suse.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -25,13 +26,18 @@
#include <scsi/scsi_eh.h>
#include <scsi/scsi_dh.h>
#define HP_SW_NAME "hp_sw"
#define HP_SW_NAME "hp_sw"
#define HP_SW_TIMEOUT (60 * HZ)
#define HP_SW_RETRIES 3
#define HP_SW_TIMEOUT (60 * HZ)
#define HP_SW_RETRIES 3
#define HP_SW_PATH_UNINITIALIZED -1
#define HP_SW_PATH_ACTIVE 0
#define HP_SW_PATH_PASSIVE 1
struct hp_sw_dh_data {
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int path_state;
int retries;
};
@ -42,51 +48,161 @@ static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev)
return ((struct hp_sw_dh_data *) scsi_dh_data->buf);
}
static int hp_sw_done(struct scsi_device *sdev)
/*
* tur_done - Handle TEST UNIT READY return status
* @sdev: sdev the command has been sent to
* @errors: blk error code
*
* Returns SCSI_DH_DEV_OFFLINED if the sdev is on the passive path
*/
static int tur_done(struct scsi_device *sdev, unsigned char *sense)
{
struct scsi_sense_hdr sshdr;
int ret;
ret = scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr);
if (!ret) {
sdev_printk(KERN_WARNING, sdev,
"%s: sending tur failed, no sense available\n",
HP_SW_NAME);
ret = SCSI_DH_IO;
goto done;
}
switch (sshdr.sense_key) {
case UNIT_ATTENTION:
ret = SCSI_DH_IMM_RETRY;
break;
case NOT_READY:
if ((sshdr.asc == 0x04) && (sshdr.ascq == 2)) {
/*
* LUN not ready - Initialization command required
*
* This is the passive path
*/
ret = SCSI_DH_DEV_OFFLINED;
break;
}
/* Fallthrough */
default:
sdev_printk(KERN_WARNING, sdev,
"%s: sending tur failed, sense %x/%x/%x\n",
HP_SW_NAME, sshdr.sense_key, sshdr.asc,
sshdr.ascq);
break;
}
done:
return ret;
}
/*
* hp_sw_tur - Send TEST UNIT READY
* @sdev: sdev command should be sent to
*
* Use the TEST UNIT READY command to determine
* the path state.
*/
static int hp_sw_tur(struct scsi_device *sdev, struct hp_sw_dh_data *h)
{
struct request *req;
int ret;
req = blk_get_request(sdev->request_queue, WRITE, GFP_NOIO);
if (!req)
return SCSI_DH_RES_TEMP_UNAVAIL;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_FAILFAST;
req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY);
memset(req->cmd, 0, MAX_COMMAND_SIZE);
req->cmd[0] = TEST_UNIT_READY;
req->timeout = HP_SW_TIMEOUT;
req->sense = h->sense;
memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE);
req->sense_len = 0;
retry:
ret = blk_execute_rq(req->q, NULL, req, 1);
if (ret == -EIO) {
if (req->sense_len > 0) {
ret = tur_done(sdev, h->sense);
} else {
sdev_printk(KERN_WARNING, sdev,
"%s: sending tur failed with %x\n",
HP_SW_NAME, req->errors);
ret = SCSI_DH_IO;
}
} else {
h->path_state = HP_SW_PATH_ACTIVE;
ret = SCSI_DH_OK;
}
if (ret == SCSI_DH_IMM_RETRY)
goto retry;
if (ret == SCSI_DH_DEV_OFFLINED) {
h->path_state = HP_SW_PATH_PASSIVE;
ret = SCSI_DH_OK;
}
blk_put_request(req);
return ret;
}
/*
* start_done - Handle START STOP UNIT return status
* @sdev: sdev the command has been sent to
* @errors: blk error code
*/
static int start_done(struct scsi_device *sdev, unsigned char *sense)
{
struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
struct scsi_sense_hdr sshdr;
int rc;
sdev_printk(KERN_INFO, sdev, "hp_sw_done\n");
rc = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, &sshdr);
if (!rc)
goto done;
rc = scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr);
if (!rc) {
sdev_printk(KERN_WARNING, sdev,
"%s: sending start_stop_unit failed, "
"no sense available\n",
HP_SW_NAME);
return SCSI_DH_IO;
}
switch (sshdr.sense_key) {
case NOT_READY:
if ((sshdr.asc == 0x04) && (sshdr.ascq == 3)) {
/*
* LUN not ready - manual intervention required
*
* Switch-over in progress, retry.
*/
rc = SCSI_DH_RETRY;
h->retries++;
break;
}
/* fall through */
default:
h->retries++;
rc = SCSI_DH_IMM_RETRY;
}
done:
if (rc == SCSI_DH_OK || rc == SCSI_DH_IO)
h->retries = 0;
else if (h->retries > HP_SW_RETRIES) {
h->retries = 0;
sdev_printk(KERN_WARNING, sdev,
"%s: sending start_stop_unit failed, sense %x/%x/%x\n",
HP_SW_NAME, sshdr.sense_key, sshdr.asc,
sshdr.ascq);
rc = SCSI_DH_IO;
}
return rc;
}
static int hp_sw_activate(struct scsi_device *sdev)
/*
* hp_sw_start_stop - Send START STOP UNIT command
* @sdev: sdev command should be sent to
*
* Sending START STOP UNIT activates the SP.
*/
static int hp_sw_start_stop(struct scsi_device *sdev, struct hp_sw_dh_data *h)
{
struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
struct request *req;
int ret = SCSI_DH_RES_TEMP_UNAVAIL;
int ret, retry;
req = blk_get_request(sdev->request_queue, WRITE, GFP_ATOMIC);
req = blk_get_request(sdev->request_queue, WRITE, GFP_NOIO);
if (!req)
goto done;
sdev_printk(KERN_INFO, sdev, "sending START_STOP.");
return SCSI_DH_RES_TEMP_UNAVAIL;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_FAILFAST;
@ -98,95 +214,153 @@ static int hp_sw_activate(struct scsi_device *sdev)
req->sense = h->sense;
memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE);
req->sense_len = 0;
retry = h->retries;
retry:
ret = blk_execute_rq(req->q, NULL, req, 1);
if (!ret) /* SUCCESS */
ret = hp_sw_done(sdev);
else
if (ret == -EIO) {
if (req->sense_len > 0) {
ret = start_done(sdev, h->sense);
} else {
sdev_printk(KERN_WARNING, sdev,
"%s: sending start_stop_unit failed with %x\n",
HP_SW_NAME, req->errors);
ret = SCSI_DH_IO;
}
} else
ret = SCSI_DH_OK;
if (ret == SCSI_DH_RETRY) {
if (--retry)
goto retry;
ret = SCSI_DH_IO;
done:
}
blk_put_request(req);
return ret;
}
static const struct {
char *vendor;
char *model;
} hp_sw_dh_data_list[] = {
{"COMPAQ", "MSA"},
{"HP", "HSV"},
static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req)
{
struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
int ret = BLKPREP_OK;
if (h->path_state != HP_SW_PATH_ACTIVE) {
ret = BLKPREP_KILL;
req->cmd_flags |= REQ_QUIET;
}
return ret;
}
/*
* hp_sw_activate - Activate a path
* @sdev: sdev on the path to be activated
*
* The HP Active/Passive firmware is pretty simple;
* the passive path reports NOT READY with sense codes
* 0x04/0x02; a START STOP UNIT command will then
* activate the passive path (and deactivate the
* previously active one).
*/
static int hp_sw_activate(struct scsi_device *sdev)
{
int ret = SCSI_DH_OK;
struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
ret = hp_sw_tur(sdev, h);
if (ret == SCSI_DH_OK && h->path_state == HP_SW_PATH_PASSIVE) {
ret = hp_sw_start_stop(sdev, h);
if (ret == SCSI_DH_OK)
sdev_printk(KERN_INFO, sdev,
"%s: activated path\n",
HP_SW_NAME);
}
return ret;
}
const struct scsi_dh_devlist hp_sw_dh_data_list[] = {
{"COMPAQ", "MSA1000 VOLUME"},
{"COMPAQ", "HSV110"},
{"HP", "HSV100"},
{"DEC", "HSG80"},
{NULL, NULL},
};
static int hp_sw_bus_notify(struct notifier_block *, unsigned long, void *);
static int hp_sw_bus_attach(struct scsi_device *sdev);
static void hp_sw_bus_detach(struct scsi_device *sdev);
static struct scsi_device_handler hp_sw_dh = {
.name = HP_SW_NAME,
.module = THIS_MODULE,
.nb.notifier_call = hp_sw_bus_notify,
.devlist = hp_sw_dh_data_list,
.attach = hp_sw_bus_attach,
.detach = hp_sw_bus_detach,
.activate = hp_sw_activate,
.prep_fn = hp_sw_prep_fn,
};
static int hp_sw_bus_notify(struct notifier_block *nb,
unsigned long action, void *data)
static int hp_sw_bus_attach(struct scsi_device *sdev)
{
struct device *dev = data;
struct scsi_device *sdev;
struct scsi_dh_data *scsi_dh_data;
int i, found = 0;
struct hp_sw_dh_data *h;
unsigned long flags;
int ret;
if (!scsi_is_sdev_device(dev))
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(struct hp_sw_dh_data) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n",
HP_SW_NAME);
return 0;
sdev = to_scsi_device(dev);
if (action == BUS_NOTIFY_ADD_DEVICE) {
for (i = 0; hp_sw_dh_data_list[i].vendor; i++) {
if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor,
strlen(hp_sw_dh_data_list[i].vendor)) &&
!strncmp(sdev->model, hp_sw_dh_data_list[i].model,
strlen(hp_sw_dh_data_list[i].model))) {
found = 1;
break;
}
}
if (!found)
goto out;
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(struct hp_sw_dh_data) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "Attach Failed %s.\n",
HP_SW_NAME);
goto out;
}
scsi_dh_data->scsi_dh = &hp_sw_dh;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
try_module_get(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", HP_SW_NAME);
} else if (action == BUS_NOTIFY_DEL_DEVICE) {
if (sdev->scsi_dh_data == NULL ||
sdev->scsi_dh_data->scsi_dh != &hp_sw_dh)
goto out;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
module_put(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n", HP_SW_NAME);
kfree(scsi_dh_data);
}
out:
scsi_dh_data->scsi_dh = &hp_sw_dh;
h = (struct hp_sw_dh_data *) scsi_dh_data->buf;
h->path_state = HP_SW_PATH_UNINITIALIZED;
h->retries = HP_SW_RETRIES;
ret = hp_sw_tur(sdev, h);
if (ret != SCSI_DH_OK || h->path_state == HP_SW_PATH_UNINITIALIZED)
goto failed;
if (!try_module_get(THIS_MODULE))
goto failed;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n",
HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE?
"active":"passive");
return 0;
failed:
kfree(scsi_dh_data);
sdev_printk(KERN_ERR, sdev, "%s: not attached\n",
HP_SW_NAME);
return -EINVAL;
}
static void hp_sw_bus_detach( struct scsi_device *sdev )
{
struct scsi_dh_data *scsi_dh_data;
unsigned long flags;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
module_put(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", HP_SW_NAME);
kfree(scsi_dh_data);
}
static int __init hp_sw_init(void)
@ -202,6 +376,6 @@ static void __exit hp_sw_exit(void)
module_init(hp_sw_init);
module_exit(hp_sw_exit);
MODULE_DESCRIPTION("HP MSA 1000");
MODULE_DESCRIPTION("HP Active/Passive driver");
MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu");
MODULE_LICENSE("GPL");

266
drivers/scsi/device_handler/scsi_dh_rdac.c
View File

@ -173,6 +173,11 @@ struct rdac_dh_data {
#define RDAC_STATE_ACTIVE 0
#define RDAC_STATE_PASSIVE 1
unsigned char state;
#define RDAC_LUN_UNOWNED 0
#define RDAC_LUN_OWNED 1
#define RDAC_LUN_AVT 2
char lun_state;
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
union {
struct c2_inquiry c2;
@ -182,6 +187,13 @@ struct rdac_dh_data {
} inq;
};
static const char *lun_state[] =
{
"unowned",
"owned",
"owned (AVT mode)",
};
static LIST_HEAD(ctlr_list);
static DEFINE_SPINLOCK(list_lock);
@ -197,9 +209,8 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
{
struct request *rq;
struct request_queue *q = sdev->request_queue;
struct rdac_dh_data *h = get_rdac_data(sdev);
rq = blk_get_request(q, rw, GFP_KERNEL);
rq = blk_get_request(q, rw, GFP_NOIO);
if (!rq) {
sdev_printk(KERN_INFO, sdev,
@ -207,17 +218,14 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
return NULL;
}
if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_KERNEL)) {
if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) {
blk_put_request(rq);
sdev_printk(KERN_INFO, sdev,
"get_rdac_req: blk_rq_map_kern failed.\n");
return NULL;
}
memset(&rq->cmd, 0, BLK_MAX_CDB);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = 0;
memset(rq->cmd, 0, BLK_MAX_CDB);
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
@ -227,12 +235,12 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
return rq;
}
static struct request *rdac_failover_get(struct scsi_device *sdev)
static struct request *rdac_failover_get(struct scsi_device *sdev,
struct rdac_dh_data *h)
{
struct request *rq;
struct rdac_mode_common *common;
unsigned data_size;
struct rdac_dh_data *h = get_rdac_data(sdev);
if (h->ctlr->use_ms10) {
struct rdac_pg_expanded *rdac_pg;
@ -277,6 +285,10 @@ static struct request *rdac_failover_get(struct scsi_device *sdev)
}
rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = 0;
return rq;
}
@ -321,11 +333,10 @@ done:
}
static int submit_inquiry(struct scsi_device *sdev, int page_code,
unsigned int len)
unsigned int len, struct rdac_dh_data *h)
{
struct request *rq;
struct request_queue *q = sdev->request_queue;
struct rdac_dh_data *h = get_rdac_data(sdev);
int err = SCSI_DH_RES_TEMP_UNAVAIL;
rq = get_rdac_req(sdev, &h->inq, len, READ);
@ -338,59 +349,68 @@ static int submit_inquiry(struct scsi_device *sdev, int page_code,
rq->cmd[2] = page_code;
rq->cmd[4] = len;
rq->cmd_len = COMMAND_SIZE(INQUIRY);
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = 0;
err = blk_execute_rq(q, NULL, rq, 1);
if (err == -EIO)
err = SCSI_DH_IO;
blk_put_request(rq);
done:
return err;
}
static int get_lun(struct scsi_device *sdev)
static int get_lun(struct scsi_device *sdev, struct rdac_dh_data *h)
{
int err;
struct c8_inquiry *inqp;
struct rdac_dh_data *h = get_rdac_data(sdev);
err = submit_inquiry(sdev, 0xC8, sizeof(struct c8_inquiry));
err = submit_inquiry(sdev, 0xC8, sizeof(struct c8_inquiry), h);
if (err == SCSI_DH_OK) {
inqp = &h->inq.c8;
h->lun = inqp->lun[7]; /* currently it uses only one byte */
if (inqp->page_code != 0xc8)
return SCSI_DH_NOSYS;
if (inqp->page_id[0] != 'e' || inqp->page_id[1] != 'd' ||
inqp->page_id[2] != 'i' || inqp->page_id[3] != 'd')
return SCSI_DH_NOSYS;
h->lun = scsilun_to_int((struct scsi_lun *)inqp->lun);
}
return err;
}
#define RDAC_OWNED 0
#define RDAC_UNOWNED 1
#define RDAC_FAILED 2
static int check_ownership(struct scsi_device *sdev)
static int check_ownership(struct scsi_device *sdev, struct rdac_dh_data *h)
{
int err;
struct c9_inquiry *inqp;
struct rdac_dh_data *h = get_rdac_data(sdev);
err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry));
err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry), h);
if (err == SCSI_DH_OK) {
err = RDAC_UNOWNED;
inqp = &h->inq.c9;
/*
* If in AVT mode or if the path already owns the LUN,
* return RDAC_OWNED;
*/
if (((inqp->avte_cvp >> 7) == 0x1) ||
((inqp->avte_cvp & 0x1) != 0))
err = RDAC_OWNED;
} else
err = RDAC_FAILED;
if ((inqp->avte_cvp >> 7) == 0x1) {
/* LUN in AVT mode */
sdev_printk(KERN_NOTICE, sdev,
"%s: AVT mode detected\n",
RDAC_NAME);
h->lun_state = RDAC_LUN_AVT;
} else if ((inqp->avte_cvp & 0x1) != 0) {
/* LUN was owned by the controller */
h->lun_state = RDAC_LUN_OWNED;
}
}
return err;
}
static int initialize_controller(struct scsi_device *sdev)
static int initialize_controller(struct scsi_device *sdev,
struct rdac_dh_data *h)
{
int err;
struct c4_inquiry *inqp;
struct rdac_dh_data *h = get_rdac_data(sdev);
err = submit_inquiry(sdev, 0xC4, sizeof(struct c4_inquiry));
err = submit_inquiry(sdev, 0xC4, sizeof(struct c4_inquiry), h);
if (err == SCSI_DH_OK) {
inqp = &h->inq.c4;
h->ctlr = get_controller(inqp->subsys_id, inqp->slot_id);
@ -400,13 +420,12 @@ static int initialize_controller(struct scsi_device *sdev)
return err;
}
static int set_mode_select(struct scsi_device *sdev)
static int set_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h)
{
int err;
struct c2_inquiry *inqp;
struct rdac_dh_data *h = get_rdac_data(sdev);
err = submit_inquiry(sdev, 0xC2, sizeof(struct c2_inquiry));
err = submit_inquiry(sdev, 0xC2, sizeof(struct c2_inquiry), h);
if (err == SCSI_DH_OK) {
inqp = &h->inq.c2;
/*
@ -421,13 +440,13 @@ static int set_mode_select(struct scsi_device *sdev)
return err;
}
static int mode_select_handle_sense(struct scsi_device *sdev)
static int mode_select_handle_sense(struct scsi_device *sdev,
unsigned char *sensebuf)
{
struct scsi_sense_hdr sense_hdr;
struct rdac_dh_data *h = get_rdac_data(sdev);
int sense, err = SCSI_DH_IO, ret;
ret = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, &sense_hdr);
ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr);
if (!ret)
goto done;
@ -451,14 +470,13 @@ done:
return err;
}
static int send_mode_select(struct scsi_device *sdev)
static int send_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h)
{
struct request *rq;
struct request_queue *q = sdev->request_queue;
struct rdac_dh_data *h = get_rdac_data(sdev);
int err = SCSI_DH_RES_TEMP_UNAVAIL;
rq = rdac_failover_get(sdev);
rq = rdac_failover_get(sdev, h);
if (!rq)
goto done;
@ -466,9 +484,11 @@ static int send_mode_select(struct scsi_device *sdev)
err = blk_execute_rq(q, NULL, rq, 1);
if (err != SCSI_DH_OK)
err = mode_select_handle_sense(sdev);
err = mode_select_handle_sense(sdev, h->sense);
if (err == SCSI_DH_OK)
h->state = RDAC_STATE_ACTIVE;
blk_put_request(rq);
done:
return err;
}
@ -478,38 +498,23 @@ static int rdac_activate(struct scsi_device *sdev)
struct rdac_dh_data *h = get_rdac_data(sdev);
int err = SCSI_DH_OK;
if (h->lun == UNINITIALIZED_LUN) {
err = get_lun(sdev);
if (err != SCSI_DH_OK)
goto done;
}
err = check_ownership(sdev);
switch (err) {
case RDAC_UNOWNED:
break;
case RDAC_OWNED:
err = SCSI_DH_OK;
err = check_ownership(sdev, h);
if (err != SCSI_DH_OK)
goto done;
case RDAC_FAILED:
default:
err = SCSI_DH_IO;
goto done;
}
if (!h->ctlr) {
err = initialize_controller(sdev);
err = initialize_controller(sdev, h);
if (err != SCSI_DH_OK)
goto done;
}
if (h->ctlr->use_ms10 == -1) {
err = set_mode_select(sdev);
err = set_mode_select(sdev, h);
if (err != SCSI_DH_OK)
goto done;
}
err = send_mode_select(sdev);
if (h->lun_state == RDAC_LUN_UNOWNED)
err = send_mode_select(sdev, h);
done:
return err;
}
@ -569,10 +574,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
return SCSI_RETURN_NOT_HANDLED;
}
static const struct {
char *vendor;
char *model;
} rdac_dev_list[] = {
const struct scsi_dh_devlist rdac_dev_list[] = {
{"IBM", "1722"},
{"IBM", "1724"},
{"IBM", "1726"},
@ -590,89 +592,89 @@ static const struct {
{NULL, NULL},
};
static int rdac_bus_notify(struct notifier_block *, unsigned long, void *);
static int rdac_bus_attach(struct scsi_device *sdev);
static void rdac_bus_detach(struct scsi_device *sdev);
static struct scsi_device_handler rdac_dh = {
.name = RDAC_NAME,
.module = THIS_MODULE,
.nb.notifier_call = rdac_bus_notify,
.devlist = rdac_dev_list,
.prep_fn = rdac_prep_fn,
.check_sense = rdac_check_sense,
.attach = rdac_bus_attach,
.detach = rdac_bus_detach,
.activate = rdac_activate,
};
/*
* TODO: need some interface so we can set trespass values
*/
static int rdac_bus_notify(struct notifier_block *nb,
unsigned long action, void *data)
static int rdac_bus_attach(struct scsi_device *sdev)
{
struct device *dev = data;
struct scsi_device *sdev;
struct scsi_dh_data *scsi_dh_data;
struct rdac_dh_data *h;
int i, found = 0;
unsigned long flags;
int err;
if (!scsi_is_sdev_device(dev))
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
RDAC_NAME);
return 0;
sdev = to_scsi_device(dev);
if (action == BUS_NOTIFY_ADD_DEVICE) {
for (i = 0; rdac_dev_list[i].vendor; i++) {
if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor,
strlen(rdac_dev_list[i].vendor)) &&
!strncmp(sdev->model, rdac_dev_list[i].model,
strlen(rdac_dev_list[i].model))) {
found = 1;
break;
}
}
if (!found)
goto out;
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n",
RDAC_NAME);
goto out;
}
scsi_dh_data->scsi_dh = &rdac_dh;
h = (struct rdac_dh_data *) scsi_dh_data->buf;
h->lun = UNINITIALIZED_LUN;
h->state = RDAC_STATE_ACTIVE;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
try_module_get(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", RDAC_NAME);
} else if (action == BUS_NOTIFY_DEL_DEVICE) {
if (sdev->scsi_dh_data == NULL ||
sdev->scsi_dh_data->scsi_dh != &rdac_dh)
goto out;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
h = (struct rdac_dh_data *) scsi_dh_data->buf;
if (h->ctlr)
kref_put(&h->ctlr->kref, release_controller);
kfree(scsi_dh_data);
module_put(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n", RDAC_NAME);
}
out:
scsi_dh_data->scsi_dh = &rdac_dh;
h = (struct rdac_dh_data *) scsi_dh_data->buf;
h->lun = UNINITIALIZED_LUN;
h->state = RDAC_STATE_ACTIVE;
err = get_lun(sdev, h);
if (err != SCSI_DH_OK)
goto failed;
err = check_ownership(sdev, h);
if (err != SCSI_DH_OK)
goto failed;
if (!try_module_get(THIS_MODULE))
goto failed;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
sdev_printk(KERN_NOTICE, sdev,
"%s: LUN %d (%s)\n",
RDAC_NAME, h->lun, lun_state[(int)h->lun_state]);
return 0;
failed:
kfree(scsi_dh_data);
sdev_printk(KERN_ERR, sdev, "%s: not attached\n",
RDAC_NAME);
return -EINVAL;
}
static void rdac_bus_detach( struct scsi_device *sdev )
{
struct scsi_dh_data *scsi_dh_data;
struct rdac_dh_data *h;
unsigned long flags;
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
scsi_dh_data = sdev->scsi_dh_data;
sdev->scsi_dh_data = NULL;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
h = (struct rdac_dh_data *) scsi_dh_data->buf;
if (h->ctlr)
kref_put(&h->ctlr->kref, release_controller);
kfree(scsi_dh_data);
module_put(THIS_MODULE);
sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", RDAC_NAME);
}
static int __init rdac_init(void)
{
int r;

204
drivers/scsi/ibmvscsi/ibmvfc.c
View File

@ -521,9 +521,10 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost,
static void ibmvfc_reinit_host(struct ibmvfc_host *vhost)
{
if (vhost->action == IBMVFC_HOST_ACTION_NONE) {
scsi_block_requests(vhost->host);
ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
if (!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) {
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
}
} else
vhost->reinit = 1;
@ -854,39 +855,41 @@ static void ibmvfc_retry_host_init(struct ibmvfc_host *vhost)
}
/**
* __ibmvfc_find_target - Find the specified scsi_target (no locking)
* __ibmvfc_get_target - Find the specified scsi_target (no locking)
* @starget: scsi target struct
*
* Return value:
* ibmvfc_target struct / NULL if not found
**/
static struct ibmvfc_target *__ibmvfc_find_target(struct scsi_target *starget)
static struct ibmvfc_target *__ibmvfc_get_target(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ibmvfc_host *vhost = shost_priv(shost);
struct ibmvfc_target *tgt;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->target_id == starget->id)
if (tgt->target_id == starget->id) {
kref_get(&tgt->kref);
return tgt;
}
return NULL;
}
/**
* ibmvfc_find_target - Find the specified scsi_target
* ibmvfc_get_target - Find the specified scsi_target
* @starget: scsi target struct
*
* Return value:
* ibmvfc_target struct / NULL if not found
**/
static struct ibmvfc_target *ibmvfc_find_target(struct scsi_target *starget)
static struct ibmvfc_target *ibmvfc_get_target(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ibmvfc_target *tgt;
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
tgt = __ibmvfc_find_target(starget);
tgt = __ibmvfc_get_target(starget);
spin_unlock_irqrestore(shost->host_lock, flags);
return tgt;
}
@ -963,6 +966,9 @@ static void ibmvfc_get_host_port_state(struct Scsi_Host *shost)
case IBMVFC_HALTED:
fc_host_port_state(shost) = FC_PORTSTATE_BLOCKED;
break;
case IBMVFC_NO_CRQ:
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
break;
default:
ibmvfc_log(vhost, 3, "Unknown port state: %d\n", vhost->state);
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
@ -987,6 +993,17 @@ static void ibmvfc_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
rport->dev_loss_tmo = 1;
}
/**
* ibmvfc_release_tgt - Free memory allocated for a target
* @kref: kref struct
*
**/
static void ibmvfc_release_tgt(struct kref *kref)
{
struct ibmvfc_target *tgt = container_of(kref, struct ibmvfc_target, kref);
kfree(tgt);
}
/**
* ibmvfc_get_starget_node_name - Get SCSI target's node name
* @starget: scsi target struct
@ -996,8 +1013,10 @@ static void ibmvfc_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
**/
static void ibmvfc_get_starget_node_name(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_find_target(starget);
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_name(starget) = tgt ? tgt->ids.node_name : 0;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
@ -1009,8 +1028,10 @@ static void ibmvfc_get_starget_node_name(struct scsi_target *starget)
**/
static void ibmvfc_get_starget_port_name(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_find_target(starget);
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_name(starget) = tgt ? tgt->ids.port_name : 0;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
@ -1022,8 +1043,10 @@ static void ibmvfc_get_starget_port_name(struct scsi_target *starget)
**/
static void ibmvfc_get_starget_port_id(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_find_target(starget);
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_id(starget) = tgt ? tgt->scsi_id : -1;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
@ -1113,7 +1136,7 @@ static void ibmvfc_set_login_info(struct ibmvfc_host *vhost)
login_info->max_cmds = max_requests + IBMVFC_NUM_INTERNAL_REQ;
login_info->capabilities = IBMVFC_CAN_MIGRATE;
login_info->async.va = vhost->async_crq.msg_token;
login_info->async.len = vhost->async_crq.size;
login_info->async.len = vhost->async_crq.size * sizeof(*vhost->async_crq.msgs);
strncpy(login_info->partition_name, vhost->partition_name, IBMVFC_MAX_NAME);
strncpy(login_info->device_name,
vhost->host->shost_gendev.bus_id, IBMVFC_MAX_NAME);
@ -1404,7 +1427,7 @@ static void ibmvfc_log_error(struct ibmvfc_event *evt)
err = cmd_status[index].name;
}
if (!logerr && (vhost->log_level <= IBMVFC_DEFAULT_LOG_LEVEL))
if (!logerr && (vhost->log_level <= (IBMVFC_DEFAULT_LOG_LEVEL + 1)))
return;
if (rsp->flags & FCP_RSP_LEN_VALID)
@ -2054,7 +2077,7 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq,
{
const char *desc = ibmvfc_get_ae_desc(crq->event);
ibmvfc_log(vhost, 2, "%s event received\n", desc);
ibmvfc_log(vhost, 3, "%s event received\n", desc);
switch (crq->event) {
case IBMVFC_AE_LINK_UP:
@ -2647,17 +2670,6 @@ static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt,
ibmvfc_init_tgt(tgt, job_step);
}
/**
* ibmvfc_release_tgt - Free memory allocated for a target
* @kref: kref struct
*
**/
static void ibmvfc_release_tgt(struct kref *kref)
{
struct ibmvfc_target *tgt = container_of(kref, struct ibmvfc_target, kref);
kfree(tgt);
}
/**
* ibmvfc_tgt_prli_done - Completion handler for Process Login
* @evt: ibmvfc event struct
@ -2901,6 +2913,139 @@ static void ibmvfc_tgt_implicit_logout(struct ibmvfc_target *tgt)
tgt_dbg(tgt, "Sent Implicit Logout\n");
}
/**
* ibmvfc_adisc_needs_plogi - Does device need PLOGI?
* @mad: ibmvfc passthru mad struct
* @tgt: ibmvfc target struct
*
* Returns:
* 1 if PLOGI needed / 0 if PLOGI not needed
**/
static int ibmvfc_adisc_needs_plogi(struct ibmvfc_passthru_mad *mad,
struct ibmvfc_target *tgt)
{
if (memcmp(&mad->fc_iu.response[2], &tgt->ids.port_name,
sizeof(tgt->ids.port_name)))
return 1;
if (memcmp(&mad->fc_iu.response[4], &tgt->ids.node_name,
sizeof(tgt->ids.node_name)))
return 1;
if (mad->fc_iu.response[6] != tgt->scsi_id)
return 1;
return 0;
}
/**
* ibmvfc_tgt_adisc_done - Completion handler for ADISC
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_adisc_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_passthru_mad *mad = &evt->xfer_iu->passthru;
u32 status = mad->common.status;
u8 fc_reason, fc_explain;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "ADISC succeeded\n");
if (ibmvfc_adisc_needs_plogi(mad, tgt))
tgt->need_login = 1;
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_FAILED:
default:
tgt->need_login = 1;
fc_reason = (mad->fc_iu.response[1] & 0x00ff0000) >> 16;
fc_explain = (mad->fc_iu.response[1] & 0x0000ff00) >> 8;
tgt_info(tgt, "ADISC failed: %s (%x:%x) %s (%x) %s (%x) rc=0x%02X\n",
ibmvfc_get_cmd_error(mad->iu.status, mad->iu.error),
mad->iu.status, mad->iu.error,
ibmvfc_get_fc_type(fc_reason), fc_reason,
ibmvfc_get_ls_explain(fc_explain), fc_explain, status);
break;
};
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_init_passthru - Initialize an event struct for FC passthru
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_init_passthru(struct ibmvfc_event *evt)
{
struct ibmvfc_passthru_mad *mad = &evt->iu.passthru;
memset(mad, 0, sizeof(*mad));
mad->common.version = 1;
mad->common.opcode = IBMVFC_PASSTHRU;
mad->common.length = sizeof(*mad) - sizeof(mad->fc_iu) - sizeof(mad->iu);
mad->cmd_ioba.va = (u64)evt->crq.ioba +
offsetof(struct ibmvfc_passthru_mad, iu);
mad->cmd_ioba.len = sizeof(mad->iu);
mad->iu.cmd_len = sizeof(mad->fc_iu.payload);
mad->iu.rsp_len = sizeof(mad->fc_iu.response);
mad->iu.cmd.va = (u64)evt->crq.ioba +
offsetof(struct ibmvfc_passthru_mad, fc_iu) +
offsetof(struct ibmvfc_passthru_fc_iu, payload);
mad->iu.cmd.len = sizeof(mad->fc_iu.payload);
mad->iu.rsp.va = (u64)evt->crq.ioba +
offsetof(struct ibmvfc_passthru_mad, fc_iu) +
offsetof(struct ibmvfc_passthru_fc_iu, response);
mad->iu.rsp.len = sizeof(mad->fc_iu.response);
}
/**
* ibmvfc_tgt_adisc - Initiate an ADISC for specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_adisc(struct ibmvfc_target *tgt)
{
struct ibmvfc_passthru_mad *mad;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(vhost);
vhost->discovery_threads++;
ibmvfc_init_event(evt, ibmvfc_tgt_adisc_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
ibmvfc_init_passthru(evt);
mad = &evt->iu.passthru;
mad->iu.flags = IBMVFC_FC_ELS;
mad->iu.scsi_id = tgt->scsi_id;
mad->fc_iu.payload[0] = IBMVFC_ADISC;
memcpy(&mad->fc_iu.payload[2], &vhost->login_buf->resp.port_name,
sizeof(vhost->login_buf->resp.port_name));
memcpy(&mad->fc_iu.payload[4], &vhost->login_buf->resp.node_name,
sizeof(vhost->login_buf->resp.node_name));
mad->fc_iu.payload[6] = vhost->login_buf->resp.scsi_id & 0x00ffffff;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent ADISC\n");
}
/**
* ibmvfc_tgt_query_target_done - Completion handler for Query Target MAD
* @evt: ibmvfc event struct
@ -2921,6 +3066,8 @@ static void ibmvfc_tgt_query_target_done(struct ibmvfc_event *evt)
tgt->new_scsi_id = rsp->scsi_id;
if (rsp->scsi_id != tgt->scsi_id)
ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout);
else
ibmvfc_init_tgt(tgt, ibmvfc_tgt_adisc);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
@ -3336,6 +3483,7 @@ static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt)
tgt_dbg(tgt, "rport add succeeded\n");
rport->maxframe_size = tgt->service_parms.common.bb_rcv_sz & 0x0fff;
rport->supported_classes = 0;
tgt->target_id = rport->scsi_target_id;
if (tgt->service_parms.class1_parms[0] & 0x80000000)
rport->supported_classes |= FC_COS_CLASS1;
if (tgt->service_parms.class2_parms[0] & 0x80000000)
@ -3800,10 +3948,12 @@ static int ibmvfc_remove(struct vio_dev *vdev)
ENTER;
ibmvfc_remove_trace_file(&vhost->host->shost_dev.kobj, &ibmvfc_trace_attr);
ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE);
ibmvfc_wait_while_resetting(vhost);
ibmvfc_release_crq_queue(vhost);
kthread_stop(vhost->work_thread);
fc_remove_host(vhost->host);
scsi_remove_host(vhost->host);
ibmvfc_release_crq_queue(vhost);
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_purge_requests(vhost, DID_ERROR);

44
drivers/scsi/ibmvscsi/ibmvfc.h
View File

@ -29,8 +29,8 @@
#include "viosrp.h"
#define IBMVFC_NAME "ibmvfc"
#define IBMVFC_DRIVER_VERSION "1.0.0"
#define IBMVFC_DRIVER_DATE "(July 1, 2008)"
#define IBMVFC_DRIVER_VERSION "1.0.1"
#define IBMVFC_DRIVER_DATE "(July 11, 2008)"
#define IBMVFC_DEFAULT_TIMEOUT 15
#define IBMVFC_INIT_TIMEOUT 30
@ -119,6 +119,7 @@ enum ibmvfc_mad_types {
IBMVFC_PROCESS_LOGIN = 0x0008,
IBMVFC_QUERY_TARGET = 0x0010,
IBMVFC_IMPLICIT_LOGOUT = 0x0040,
IBMVFC_PASSTHRU = 0x0200,
IBMVFC_TMF_MAD = 0x0100,
};
@ -439,6 +440,37 @@ struct ibmvfc_cmd {
struct ibmvfc_fcp_rsp rsp;
}__attribute__((packed, aligned (8)));
struct ibmvfc_passthru_fc_iu {
u32 payload[7];
#define IBMVFC_ADISC 0x52000000
u32 response[7];
};
struct ibmvfc_passthru_iu {
u64 task_tag;
u32 cmd_len;
u32 rsp_len;
u16 status;
u16 error;
u32 flags;
#define IBMVFC_FC_ELS 0x01
u32 cancel_key;
u32 reserved;
struct srp_direct_buf cmd;
struct srp_direct_buf rsp;
u64 correlation;
u64 scsi_id;
u64 tag;
u64 reserved2[2];
}__attribute__((packed, aligned (8)));
struct ibmvfc_passthru_mad {
struct ibmvfc_mad_common common;
struct srp_direct_buf cmd_ioba;
struct ibmvfc_passthru_iu iu;
struct ibmvfc_passthru_fc_iu fc_iu;
}__attribute__((packed, aligned (8)));
struct ibmvfc_trace_start_entry {
u32 xfer_len;
}__attribute__((packed));
@ -531,6 +563,7 @@ union ibmvfc_iu {
struct ibmvfc_implicit_logout implicit_logout;
struct ibmvfc_tmf tmf;
struct ibmvfc_cmd cmd;
struct ibmvfc_passthru_mad passthru;
}__attribute__((packed, aligned (8)));
enum ibmvfc_target_action {
@ -656,6 +689,9 @@ struct ibmvfc_host {
#define tgt_dbg(t, fmt, ...) \
DBG_CMD(dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
#define tgt_info(t, fmt, ...) \
dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
#define tgt_err(t, fmt, ...) \
dev_err((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
@ -668,8 +704,8 @@ struct ibmvfc_host {
dev_err((vhost)->dev, ##__VA_ARGS__); \
} while (0)
#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __FUNCTION__))
#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __FUNCTION__))
#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
#ifdef CONFIG_SCSI_IBMVFC_TRACE
#define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)

2
drivers/scsi/ibmvscsi/ibmvstgt.c
View File

@ -55,7 +55,7 @@
/* tmp - will replace with SCSI logging stuff */
#define eprintk(fmt, args...) \
do { \
printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \
printk("%s(%d) " fmt, __func__, __LINE__, ##args); \
} while (0)
/* #define dprintk eprintk */
#define dprintk(fmt, args...)

2
drivers/scsi/imm.c
View File

@ -163,7 +163,7 @@ static int imm_proc_info(struct Scsi_Host *host, char *buffer, char **start,
#if IMM_DEBUG > 0
#define imm_fail(x,y) printk("imm: imm_fail(%i) from %s at line %d\n",\
y, __FUNCTION__, __LINE__); imm_fail_func(x,y);
y, __func__, __LINE__); imm_fail_func(x,y);
static inline void
imm_fail_func(imm_struct *dev, int error_code)
#else

6
drivers/scsi/ipr.h
View File

@ -1403,10 +1403,10 @@ struct ipr_ucode_image_header {
}
#define ipr_trace ipr_dbg("%s: %s: Line: %d\n",\
__FILE__, __FUNCTION__, __LINE__)
__FILE__, __func__, __LINE__)
#define ENTER IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Entering %s\n", __FUNCTION__))
#define LEAVE IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Leaving %s\n", __FUNCTION__))
#define ENTER IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Entering %s\n", __func__))
#define LEAVE IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Leaving %s\n", __func__))
#define ipr_err_separator \
ipr_err("----------------------------------------------------------\n")

16
drivers/scsi/libsas/sas_ata.c
View File

@ -74,7 +74,7 @@ static enum ata_completion_errors sas_to_ata_err(struct task_status_struct *ts)
case SAS_OPEN_TO:
case SAS_OPEN_REJECT:
SAS_DPRINTK("%s: Saw error %d. What to do?\n",
__FUNCTION__, ts->stat);
__func__, ts->stat);
return AC_ERR_OTHER;
case SAS_ABORTED_TASK:
@ -115,7 +115,7 @@ static void sas_ata_task_done(struct sas_task *task)
} else if (stat->stat != SAM_STAT_GOOD) {
ac = sas_to_ata_err(stat);
if (ac) {
SAS_DPRINTK("%s: SAS error %x\n", __FUNCTION__,
SAS_DPRINTK("%s: SAS error %x\n", __func__,
stat->stat);
/* We saw a SAS error. Send a vague error. */
qc->err_mask = ac;
@ -244,20 +244,20 @@ static void sas_ata_phy_reset(struct ata_port *ap)
res = i->dft->lldd_I_T_nexus_reset(dev);
if (res != TMF_RESP_FUNC_COMPLETE)
SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __FUNCTION__);
SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __func__);
switch (dev->sata_dev.command_set) {
case ATA_COMMAND_SET:
SAS_DPRINTK("%s: Found ATA device.\n", __FUNCTION__);
SAS_DPRINTK("%s: Found ATA device.\n", __func__);
ap->link.device[0].class = ATA_DEV_ATA;
break;
case ATAPI_COMMAND_SET:
SAS_DPRINTK("%s: Found ATAPI device.\n", __FUNCTION__);
SAS_DPRINTK("%s: Found ATAPI device.\n", __func__);
ap->link.device[0].class = ATA_DEV_ATAPI;
break;
default:
SAS_DPRINTK("%s: Unknown SATA command set: %d.\n",
__FUNCTION__,
__func__,
dev->sata_dev.command_set);
ap->link.device[0].class = ATA_DEV_UNKNOWN;
break;
@ -299,7 +299,7 @@ static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in,
{
struct domain_device *dev = ap->private_data;
SAS_DPRINTK("STUB %s\n", __FUNCTION__);
SAS_DPRINTK("STUB %s\n", __func__);
switch (sc_reg_in) {
case SCR_STATUS:
dev->sata_dev.sstatus = val;
@ -324,7 +324,7 @@ static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in,
{
struct domain_device *dev = ap->private_data;
SAS_DPRINTK("STUB %s\n", __FUNCTION__);
SAS_DPRINTK("STUB %s\n", __func__);
switch (sc_reg_in) {
case SCR_STATUS:
*val = dev->sata_dev.sstatus;

12
drivers/scsi/libsas/sas_expander.c
View File

@ -121,7 +121,7 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size,
break;
} else {
SAS_DPRINTK("%s: task to dev %016llx response: 0x%x "
"status 0x%x\n", __FUNCTION__,
"status 0x%x\n", __func__,
SAS_ADDR(dev->sas_addr),
task->task_status.resp,
task->task_status.stat);
@ -1279,7 +1279,7 @@ static int sas_configure_present(struct domain_device *dev, int phy_id,
goto out;
} else if (res != SMP_RESP_FUNC_ACC) {
SAS_DPRINTK("%s: dev %016llx phy 0x%x index 0x%x "
"result 0x%x\n", __FUNCTION__,
"result 0x%x\n", __func__,
SAS_ADDR(dev->sas_addr), phy_id, i, res);
goto out;
}
@ -1901,7 +1901,7 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
if (!rsp) {
printk("%s: space for a smp response is missing\n",
__FUNCTION__);
__func__);
return -EINVAL;
}
@ -1914,20 +1914,20 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
if (type != SAS_EDGE_EXPANDER_DEVICE &&
type != SAS_FANOUT_EXPANDER_DEVICE) {
printk("%s: can we send a smp request to a device?\n",
__FUNCTION__);
__func__);
return -EINVAL;
}
dev = sas_find_dev_by_rphy(rphy);
if (!dev) {
printk("%s: fail to find a domain_device?\n", __FUNCTION__);
printk("%s: fail to find a domain_device?\n", __func__);
return -EINVAL;
}
/* do we need to support multiple segments? */
if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
printk("%s: multiple segments req %u %u, rsp %u %u\n",
__FUNCTION__, req->bio->bi_vcnt, req->data_len,
__func__, req->bio->bi_vcnt, req->data_len,
rsp->bio->bi_vcnt, rsp->data_len);
return -EINVAL;
}

4
drivers/scsi/libsas/sas_port.c
View File

@ -50,7 +50,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
sas_deform_port(phy);
else {
SAS_DPRINTK("%s: phy%d belongs to port%d already(%d)!\n",
__FUNCTION__, phy->id, phy->port->id,
__func__, phy->id, phy->port->id,
phy->port->num_phys);
return;
}
@ -78,7 +78,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
if (i >= sas_ha->num_phys) {
printk(KERN_NOTICE "%s: couldn't find a free port, bug?\n",
__FUNCTION__);
__func__);
spin_unlock_irqrestore(&sas_ha->phy_port_lock, flags);
return;
}

30
drivers/scsi/libsas/sas_scsi_host.c
View File

@ -343,7 +343,7 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task)
flags);
SAS_DPRINTK("%s: task 0x%p aborted from "
"task_queue\n",
__FUNCTION__, task);
__func__, task);
return TASK_IS_ABORTED;
}
}
@ -351,13 +351,13 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task)
}
for (i = 0; i < 5; i++) {
SAS_DPRINTK("%s: aborting task 0x%p\n", __FUNCTION__, task);
SAS_DPRINTK("%s: aborting task 0x%p\n", __func__, task);
res = si->dft->lldd_abort_task(task);
spin_lock_irqsave(&task->task_state_lock, flags);
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__,
SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
task);
return TASK_IS_DONE;
}
@ -365,24 +365,24 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task)
if (res == TMF_RESP_FUNC_COMPLETE) {
SAS_DPRINTK("%s: task 0x%p is aborted\n",
__FUNCTION__, task);
__func__, task);
return TASK_IS_ABORTED;
} else if (si->dft->lldd_query_task) {
SAS_DPRINTK("%s: querying task 0x%p\n",
__FUNCTION__, task);
__func__, task);
res = si->dft->lldd_query_task(task);
switch (res) {
case TMF_RESP_FUNC_SUCC:
SAS_DPRINTK("%s: task 0x%p at LU\n",
__FUNCTION__, task);
__func__, task);
return TASK_IS_AT_LU;
case TMF_RESP_FUNC_COMPLETE:
SAS_DPRINTK("%s: task 0x%p not at LU\n",
__FUNCTION__, task);
__func__, task);
return TASK_IS_NOT_AT_LU;
case TMF_RESP_FUNC_FAILED:
SAS_DPRINTK("%s: task 0x%p failed to abort\n",
__FUNCTION__, task);
__func__, task);
return TASK_ABORT_FAILED;
}
@ -545,7 +545,7 @@ Again:
if (need_reset) {
SAS_DPRINTK("%s: task 0x%p requests reset\n",
__FUNCTION__, task);
__func__, task);
goto reset;
}
@ -556,13 +556,13 @@ Again:
switch (res) {
case TASK_IS_DONE:
SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__,
SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
task);
sas_eh_finish_cmd(cmd);
continue;
case TASK_IS_ABORTED:
SAS_DPRINTK("%s: task 0x%p is aborted\n",
__FUNCTION__, task);
__func__, task);
sas_eh_finish_cmd(cmd);
continue;
case TASK_IS_AT_LU:
@ -633,7 +633,7 @@ Again:
}
return list_empty(work_q);
clear_q:
SAS_DPRINTK("--- Exit %s -- clear_q\n", __FUNCTION__);
SAS_DPRINTK("--- Exit %s -- clear_q\n", __func__);
list_for_each_entry_safe(cmd, n, work_q, eh_entry)
sas_eh_finish_cmd(cmd);
@ -650,7 +650,7 @@ void sas_scsi_recover_host(struct Scsi_Host *shost)
list_splice_init(&shost->eh_cmd_q, &eh_work_q);
spin_unlock_irqrestore(shost->host_lock, flags);
SAS_DPRINTK("Enter %s\n", __FUNCTION__);
SAS_DPRINTK("Enter %s\n", __func__);
/*
* Deal with commands that still have SAS tasks (i.e. they didn't
* complete via the normal sas_task completion mechanism)
@ -669,7 +669,7 @@ void sas_scsi_recover_host(struct Scsi_Host *shost)
out:
scsi_eh_flush_done_q(&ha->eh_done_q);
SAS_DPRINTK("--- Exit %s\n", __FUNCTION__);
SAS_DPRINTK("--- Exit %s\n", __func__);
return;
}
@ -990,7 +990,7 @@ int __sas_task_abort(struct sas_task *task)
if (task->task_state_flags & SAS_TASK_STATE_ABORTED ||
task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
SAS_DPRINTK("%s: Task %p already finished.\n", __FUNCTION__,
SAS_DPRINTK("%s: Task %p already finished.\n", __func__,
task);
return 0;
}

2
drivers/scsi/libsrp.c
View File

@ -39,7 +39,7 @@ enum srp_task_attributes {
/* tmp - will replace with SCSI logging stuff */
#define eprintk(fmt, args...) \
do { \
printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \
printk("%s(%d) " fmt, __func__, __LINE__, ##args); \
} while (0)
/* #define dprintk eprintk */
#define dprintk(fmt, args...)

4
drivers/scsi/lpfc/lpfc_init.c
View File

@ -2083,7 +2083,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
if (iocbq_entry == NULL) {
printk(KERN_ERR "%s: only allocated %d iocbs of "
"expected %d count. Unloading driver.\n",
__FUNCTION__, i, LPFC_IOCB_LIST_CNT);
__func__, i, LPFC_IOCB_LIST_CNT);
error = -ENOMEM;
goto out_free_iocbq;
}
@ -2093,7 +2093,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
kfree (iocbq_entry);
printk(KERN_ERR "%s: failed to allocate IOTAG. "
"Unloading driver.\n",
__FUNCTION__);
__func__);
error = -ENOMEM;
goto out_free_iocbq;
}

2
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -341,7 +341,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
printk(KERN_ERR "%s: Too many sg segments from "
"dma_map_sg. Config %d, seg_cnt %d",
__FUNCTION__, phba->cfg_sg_seg_cnt,
__func__, phba->cfg_sg_seg_cnt,
lpfc_cmd->seg_cnt);
scsi_dma_unmap(scsi_cmnd);
return 1;

6
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -219,7 +219,7 @@ lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
case CMD_IOCB_LOGENTRY_CN:
case CMD_IOCB_LOGENTRY_ASYNC_CN:
printk("%s - Unhandled SLI-3 Command x%x\n",
__FUNCTION__, iocb_cmnd);
__func__, iocb_cmnd);
type = LPFC_UNKNOWN_IOCB;
break;
default:
@ -1715,7 +1715,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
rspiocbp = __lpfc_sli_get_iocbq(phba);
if (rspiocbp == NULL) {
printk(KERN_ERR "%s: out of buffers! Failing "
"completion.\n", __FUNCTION__);
"completion.\n", __func__);
break;
}
@ -3793,7 +3793,7 @@ lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
break;
default:
printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
__FUNCTION__, ctx_cmd);
__func__, ctx_cmd);
break;
}

2
drivers/scsi/megaraid/mega_common.h
View File

@ -265,7 +265,7 @@ typedef struct {
#define ASSERT(expression) \
if (!(expression)) { \
ASSERT_ACTION("assertion failed:(%s), file: %s, line: %d:%s\n", \
#expression, __FILE__, __LINE__, __FUNCTION__); \
#expression, __FILE__, __LINE__, __func__); \
}
#else
#define ASSERT(expression)

16
drivers/scsi/megaraid/megaraid_mbox.c
View File

@ -458,7 +458,7 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (adapter == NULL) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d.\n", __FUNCTION__, __LINE__));
"megaraid: out of memory, %s %d.\n", __func__, __LINE__));
goto out_probe_one;
}
@ -1002,7 +1002,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter)
if (!raid_dev->una_mbox64) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
return -1;
}
@ -1030,7 +1030,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter)
if (!adapter->ibuf) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
goto out_free_common_mbox;
@ -1052,7 +1052,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter)
if (adapter->kscb_list == NULL) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
goto out_free_ibuf;
}
@ -1060,7 +1060,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter)
// memory allocation for our command packets
if (megaraid_mbox_setup_dma_pools(adapter) != 0) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
goto out_free_scb_list;
}
@ -2981,7 +2981,7 @@ megaraid_mbox_product_info(adapter_t *adapter)
if (pinfo == NULL) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
return -1;
@ -3508,7 +3508,7 @@ megaraid_cmm_register(adapter_t *adapter)
if (adapter->uscb_list == NULL) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
return -1;
}
@ -3879,7 +3879,7 @@ megaraid_sysfs_alloc_resources(adapter_t *adapter)
!raid_dev->sysfs_buffer) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: out of memory, %s %d\n", __FUNCTION__,
"megaraid: out of memory, %s %d\n", __func__,
__LINE__));
rval = -ENOMEM;

4
drivers/scsi/megaraid/megaraid_mm.c
View File

@ -929,7 +929,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
!adapter->pthru_dma_pool) {
con_log(CL_ANN, (KERN_WARNING
"megaraid cmm: out of memory, %s %d\n", __FUNCTION__,
"megaraid cmm: out of memory, %s %d\n", __func__,
__LINE__));
rval = (-ENOMEM);
@ -957,7 +957,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
con_log(CL_ANN, (KERN_WARNING
"megaraid cmm: out of memory, %s %d\n",
__FUNCTION__, __LINE__));
__func__, __LINE__));
rval = (-ENOMEM);

4
drivers/scsi/nsp32.c
View File

@ -299,9 +299,9 @@ static struct scsi_host_template nsp32_template = {
#else
# define NSP32_DEBUG_MASK 0xffffff
# define nsp32_msg(type, args...) \
nsp32_message (__FUNCTION__, __LINE__, (type), args)
nsp32_message (__func__, __LINE__, (type), args)
# define nsp32_dbg(mask, args...) \
nsp32_dmessage(__FUNCTION__, __LINE__, (mask), args)
nsp32_dmessage(__func__, __LINE__, (mask), args)
#endif
#define NSP32_DEBUG_QUEUECOMMAND BIT(0)

2
drivers/scsi/nsp32_debug.c
View File

@ -88,7 +88,7 @@ static void print_commandk (unsigned char *command)
int i,s;
// printk(KERN_DEBUG);
print_opcodek(command[0]);
/*printk(KERN_DEBUG "%s ", __FUNCTION__);*/
/*printk(KERN_DEBUG "%s ", __func__);*/
if ((command[0] >> 5) == 6 ||
(command[0] >> 5) == 7 ) {
s = 12; /* vender specific */

4
drivers/scsi/pcmcia/nsp_cs.c
View File

@ -107,9 +107,9 @@ static nsp_hw_data nsp_data_base; /* attach <-> detect glue */
#else
# define NSP_DEBUG_MASK 0xffffff
# define nsp_msg(type, args...) \
nsp_cs_message (__FUNCTION__, __LINE__, (type), args)
nsp_cs_message (__func__, __LINE__, (type), args)
# define nsp_dbg(mask, args...) \
nsp_cs_dmessage(__FUNCTION__, __LINE__, (mask), args)
nsp_cs_dmessage(__func__, __LINE__, (mask), args)
#endif
#define NSP_DEBUG_QUEUECOMMAND BIT(0)

2
drivers/scsi/pcmcia/nsp_debug.c
View File

@ -90,7 +90,7 @@ static void print_commandk (unsigned char *command)
int i, s;
printk(KERN_DEBUG);
print_opcodek(command[0]);
/*printk(KERN_DEBUG "%s ", __FUNCTION__);*/
/*printk(KERN_DEBUG "%s ", __func__);*/
if ((command[0] >> 5) == 6 ||
(command[0] >> 5) == 7 ) {
s = 12; /* vender specific */

2
drivers/scsi/ppa.c
View File

@ -171,7 +171,7 @@ static int device_check(ppa_struct *dev);
#if PPA_DEBUG > 0
#define ppa_fail(x,y) printk("ppa: ppa_fail(%i) from %s at line %d\n",\
y, __FUNCTION__, __LINE__); ppa_fail_func(x,y);
y, __func__, __LINE__); ppa_fail_func(x,y);
static inline void ppa_fail_func(ppa_struct *dev, int error_code)
#else
static inline void ppa_fail(ppa_struct *dev, int error_code)

12
drivers/scsi/qla1280.c
View File

@ -1695,7 +1695,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
dprintk(1, "%s: DMA RISC code (%i) words\n",
__FUNCTION__, risc_code_size);
__func__, risc_code_size);
num = 0;
while (risc_code_size > 0) {
@ -1721,7 +1721,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
__FUNCTION__, mb[0],
__func__, mb[0],
(void *)(long)ha->request_dma,
mb[6], mb[7], mb[2], mb[3]);
err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
@ -1753,10 +1753,10 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha)
if (tbuf[i] != sp[i] && warn++ < 10) {
printk(KERN_ERR "%s: FW compare error @ "
"byte(0x%x) loop#=%x\n",
__FUNCTION__, i, num);
__func__, i, num);
printk(KERN_ERR "%s: FWbyte=%x "
"FWfromChip=%x\n",
__FUNCTION__, sp[i], tbuf[i]);
__func__, sp[i], tbuf[i]);
/*break; */
}
}
@ -1781,7 +1781,7 @@ qla1280_start_firmware(struct scsi_qla_host *ha)
int err;
dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
__FUNCTION__);
__func__);
/* Verify checksum of loaded RISC code. */
mb[0] = MBC_VERIFY_CHECKSUM;
@ -1794,7 +1794,7 @@ qla1280_start_firmware(struct scsi_qla_host *ha)
}
/* Start firmware execution. */
dprintk(1, "%s: start firmware running.\n", __FUNCTION__);
dprintk(1, "%s: start firmware running.\n", __func__);
mb[0] = MBC_EXECUTE_FIRMWARE;
mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);

118
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -20,18 +20,12 @@ qla2x00_sysfs_read_fw_dump(struct kobject *kobj,
{
struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
char *rbuf = (char *)ha->fw_dump;
if (ha->fw_dump_reading == 0)
return 0;
if (off > ha->fw_dump_len)
return 0;
if (off + count > ha->fw_dump_len)
count = ha->fw_dump_len - off;
memcpy(buf, &rbuf[off], count);
return (count);
return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
ha->fw_dump_len);
}
static ssize_t
@ -94,20 +88,13 @@ qla2x00_sysfs_read_nvram(struct kobject *kobj,
{
struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
int size = ha->nvram_size;
char *nvram_cache = ha->nvram;
if (!capable(CAP_SYS_ADMIN) || off > size || count == 0)
if (!capable(CAP_SYS_ADMIN))
return 0;
if (off + count > size) {
size -= off;
count = size;
}
/* Read NVRAM data from cache. */
memcpy(buf, &nvram_cache[off], count);
return count;
return memory_read_from_buffer(buf, count, &off, ha->nvram,
ha->nvram_size);
}
static ssize_t
@ -175,14 +162,9 @@ qla2x00_sysfs_read_optrom(struct kobject *kobj,
if (ha->optrom_state != QLA_SREADING)
return 0;
if (off > ha->optrom_region_size)
return 0;
if (off + count > ha->optrom_region_size)
count = ha->optrom_region_size - off;
memcpy(buf, &ha->optrom_buffer[off], count);
return count;
return memory_read_from_buffer(buf, count, &off, ha->optrom_buffer,
ha->optrom_region_size);
}
static ssize_t
@ -374,20 +356,12 @@ qla2x00_sysfs_read_vpd(struct kobject *kobj,
{
struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
int size = ha->vpd_size;
char *vpd_cache = ha->vpd;
if (!capable(CAP_SYS_ADMIN) || off > size || count == 0)
if (!capable(CAP_SYS_ADMIN))
return 0;
if (off + count > size) {
size -= off;
count = size;
}
/* Read NVRAM data from cache. */
memcpy(buf, &vpd_cache[off], count);
return count;
return memory_read_from_buffer(buf, count, &off, ha->vpd, ha->vpd_size);
}
static ssize_t
@ -557,8 +531,10 @@ qla2x00_serial_num_show(struct device *dev, struct device_attribute *attr,
scsi_qla_host_t *ha = shost_priv(class_to_shost(dev));
uint32_t sn;
if (IS_FWI2_CAPABLE(ha))
return snprintf(buf, PAGE_SIZE, "\n");
if (IS_FWI2_CAPABLE(ha)) {
qla2xxx_get_vpd_field(ha, "SN", buf, PAGE_SIZE);
return snprintf(buf, PAGE_SIZE, "%s\n", buf);
}
sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
@ -809,6 +785,16 @@ qla2x00_optrom_fw_version_show(struct device *dev,
ha->fw_revision[3]);
}
static ssize_t
qla2x00_total_isp_aborts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *ha = shost_priv(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%d\n",
ha->qla_stats.total_isp_aborts);
}
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@ -831,6 +817,8 @@ static DEVICE_ATTR(optrom_fcode_version, S_IRUGO,
qla2x00_optrom_fcode_version_show, NULL);
static DEVICE_ATTR(optrom_fw_version, S_IRUGO, qla2x00_optrom_fw_version_show,
NULL);
static DEVICE_ATTR(total_isp_aborts, S_IRUGO, qla2x00_total_isp_aborts_show,
NULL);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
@ -849,6 +837,7 @@ struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_optrom_efi_version,
&dev_attr_optrom_fcode_version,
&dev_attr_optrom_fw_version,
&dev_attr_total_isp_aborts,
NULL,
};
@ -972,26 +961,39 @@ qla2x00_get_starget_port_id(struct scsi_target *starget)
}
static void
qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
struct Scsi_Host *host = rport_to_shost(rport);
scsi_qla_host_t *ha = shost_priv(host);
rport->dev_loss_tmo = ha->port_down_retry_count + 5;
if (timeout)
rport->dev_loss_tmo = timeout;
else
rport->dev_loss_tmo = 1;
}
static void
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
{
struct Scsi_Host *host = rport_to_shost(rport);
scsi_qla_host_t *ha = shost_priv(host);
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
if (timeout)
ha->port_down_retry_count = timeout;
else
ha->port_down_retry_count = 1;
qla2x00_abort_fcport_cmds(fcport);
rport->dev_loss_tmo = ha->port_down_retry_count + 5;
/*
* Transport has effectively 'deleted' the rport, clear
* all local references.
*/
spin_lock_irq(host->host_lock);
fcport->rport = NULL;
*((fc_port_t **)rport->dd_data) = NULL;
spin_unlock_irq(host->host_lock);
}
static void
qla2x00_terminate_rport_io(struct fc_rport *rport)
{
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
qla2x00_abort_fcport_cmds(fcport);
scsi_target_unblock(&rport->dev);
}
static int
@ -1045,6 +1047,7 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
pfc_host_stat->invalid_tx_word_count = stats->inval_xmit_word_cnt;
pfc_host_stat->invalid_crc_count = stats->inval_crc_cnt;
if (IS_FWI2_CAPABLE(ha)) {
pfc_host_stat->lip_count = stats->lip_cnt;
pfc_host_stat->tx_frames = stats->tx_frames;
pfc_host_stat->rx_frames = stats->rx_frames;
pfc_host_stat->dumped_frames = stats->dumped_frames;
@ -1173,17 +1176,16 @@ vport_create_failed_2:
static int
qla24xx_vport_delete(struct fc_vport *fc_vport)
{
scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
scsi_qla_host_t *vha = fc_vport->dd_data;
scsi_qla_host_t *pha = to_qla_parent(vha);
while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags) ||
test_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags))
msleep(1000);
qla24xx_disable_vp(vha);
qla24xx_deallocate_vp_id(vha);
mutex_lock(&ha->vport_lock);
ha->cur_vport_count--;
clear_bit(vha->vp_idx, ha->vp_idx_map);
mutex_unlock(&ha->vport_lock);
kfree(vha->node_name);
kfree(vha->port_name);
@ -1248,11 +1250,12 @@ struct fc_function_template qla2xxx_transport_functions = {
.get_starget_port_id = qla2x00_get_starget_port_id,
.show_starget_port_id = 1,
.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.issue_fc_host_lip = qla2x00_issue_lip,
.dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk,
.terminate_rport_io = qla2x00_terminate_rport_io,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
.vport_create = qla24xx_vport_create,
@ -1291,11 +1294,12 @@ struct fc_function_template qla2xxx_transport_vport_functions = {
.get_starget_port_id = qla2x00_get_starget_port_id,
.show_starget_port_id = 1,
.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.issue_fc_host_lip = qla2x00_issue_lip,
.dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk,
.terminate_rport_io = qla2x00_terminate_rport_io,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
};

2
drivers/scsi/qla2xxx/qla_dbg.c
View File

@ -216,7 +216,7 @@ qla24xx_soft_reset(scsi_qla_host_t *ha)
static int
qla2xxx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint16_t *ram,
uint16_t ram_words, void **nxt)
uint32_t ram_words, void **nxt)
{
int rval;
uint32_t cnt, stat, timer, words, idx;

12
drivers/scsi/qla2xxx/qla_def.h
View File

@ -864,7 +864,8 @@ struct link_statistics {
uint32_t prim_seq_err_cnt;
uint32_t inval_xmit_word_cnt;
uint32_t inval_crc_cnt;
uint32_t unused1[0x1b];
uint32_t lip_cnt;
uint32_t unused1[0x1a];
uint32_t tx_frames;
uint32_t rx_frames;
uint32_t dumped_frames;
@ -1544,7 +1545,6 @@ typedef struct fc_port {
int login_retry;
atomic_t port_down_timer;
spinlock_t rport_lock;
struct fc_rport *rport, *drport;
u32 supported_classes;
@ -2155,6 +2155,10 @@ struct qla_chip_state_84xx {
uint32_t gold_fw_version;
};
struct qla_statistics {
uint32_t total_isp_aborts;
};
/*
* Linux Host Adapter structure
*/
@ -2166,7 +2170,6 @@ typedef struct scsi_qla_host {
struct pci_dev *pdev;
unsigned long host_no;
unsigned long instance;
volatile struct {
uint32_t init_done :1;
@ -2515,7 +2518,7 @@ typedef struct scsi_qla_host {
uint8_t model_number[16+1];
#define BINZERO "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
char *model_desc;
char model_desc[80];
uint8_t adapter_id[16+1];
uint8_t *node_name;
@ -2596,6 +2599,7 @@ typedef struct scsi_qla_host {
int cur_vport_count;
struct qla_chip_state_84xx *cs84xx;
struct qla_statistics qla_stats;
} scsi_qla_host_t;

5
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -62,7 +62,7 @@ extern int ql2xfdmienable;
extern int ql2xallocfwdump;
extern int ql2xextended_error_logging;
extern int ql2xqfullrampup;
extern int num_hosts;
extern int ql2xiidmaenable;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@ -71,6 +71,8 @@ extern int qla2x00_post_aen_work(struct scsi_qla_host *, enum
extern int qla2x00_post_hwe_work(struct scsi_qla_host *, uint16_t , uint16_t,
uint16_t, uint16_t);
extern void qla2x00_abort_fcport_cmds(fc_port_t *);
/*
* Global Functions in qla_mid.c source file.
*/
@ -312,6 +314,7 @@ extern int qla2xxx_hw_event_log(scsi_qla_host_t *, uint16_t , uint16_t,
uint16_t, uint16_t);
extern void qla2xxx_get_flash_info(scsi_qla_host_t *);
extern int qla2xxx_get_vpd_field(scsi_qla_host_t *, char *, char *, size_t);
/*
* Global Function Prototypes in qla_dbg.c source file.

6
drivers/scsi/qla2xxx/qla_gs.c
View File

@ -1661,6 +1661,12 @@ qla2x00_fdmi_register(scsi_qla_host_t *ha)
{
int rval;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
DEBUG2(printk("scsi(%ld): FDMI unsupported on "
"ISP2100/ISP2200.\n", ha->host_no));
return QLA_SUCCESS;
}
rval = qla2x00_mgmt_svr_login(ha);
if (rval)
return rval;

139
drivers/scsi/qla2xxx/qla_init.c
View File

@ -334,6 +334,8 @@ static int
qla2x00_isp_firmware(scsi_qla_host_t *ha)
{
int rval;
uint16_t loop_id, topo, sw_cap;
uint8_t domain, area, al_pa;
/* Assume loading risc code */
rval = QLA_FUNCTION_FAILED;
@ -345,6 +347,11 @@ qla2x00_isp_firmware(scsi_qla_host_t *ha)
/* Verify checksum of loaded RISC code. */
rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
if (rval == QLA_SUCCESS) {
/* And, verify we are not in ROM code. */
rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa,
&area, &domain, &topo, &sw_cap);
}
}
if (rval) {
@ -722,7 +729,7 @@ qla24xx_chip_diag(scsi_qla_host_t *ha)
/* Perform RISC reset. */
qla24xx_reset_risc(ha);
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->request_q_length;
rval = qla2x00_mbx_reg_test(ha);
if (rval) {
@ -768,6 +775,38 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
mem_size = (ha->fw_memory_size - 0x100000 + 1) *
sizeof(uint32_t);
/* Allocate memory for Fibre Channel Event Buffer. */
if (!IS_QLA25XX(ha))
goto try_eft;
tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
GFP_KERNEL);
if (!tc) {
qla_printk(KERN_WARNING, ha, "Unable to allocate "
"(%d KB) for FCE.\n", FCE_SIZE / 1024);
goto try_eft;
}
memset(tc, 0, FCE_SIZE);
rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS,
ha->fce_mb, &ha->fce_bufs);
if (rval) {
qla_printk(KERN_WARNING, ha, "Unable to initialize "
"FCE (%d).\n", rval);
dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
tc_dma);
ha->flags.fce_enabled = 0;
goto try_eft;
}
qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
FCE_SIZE / 1024);
fce_size = sizeof(struct qla2xxx_fce_chain) + EFT_SIZE;
ha->flags.fce_enabled = 1;
ha->fce_dma = tc_dma;
ha->fce = tc;
try_eft:
/* Allocate memory for Extended Trace Buffer. */
tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
GFP_KERNEL);
@ -793,38 +832,6 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
eft_size = EFT_SIZE;
ha->eft_dma = tc_dma;
ha->eft = tc;
/* Allocate memory for Fibre Channel Event Buffer. */
if (!IS_QLA25XX(ha))
goto cont_alloc;
tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
GFP_KERNEL);
if (!tc) {
qla_printk(KERN_WARNING, ha, "Unable to allocate "
"(%d KB) for FCE.\n", FCE_SIZE / 1024);
goto cont_alloc;
}
memset(tc, 0, FCE_SIZE);
rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS,
ha->fce_mb, &ha->fce_bufs);
if (rval) {
qla_printk(KERN_WARNING, ha, "Unable to initialize "
"FCE (%d).\n", rval);
dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
tc_dma);
ha->flags.fce_enabled = 0;
goto cont_alloc;
}
qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
FCE_SIZE / 1024);
fce_size = sizeof(struct qla2xxx_fce_chain) + EFT_SIZE;
ha->flags.fce_enabled = 1;
ha->fce_dma = tc_dma;
ha->fce = tc;
}
cont_alloc:
req_q_size = ha->request_q_length * sizeof(request_t);
@ -1501,18 +1508,25 @@ qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *de
index = (ha->pdev->subsystem_device & 0xff);
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES)
ha->model_desc = qla2x00_model_name[index * 2 + 1];
strncpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc) - 1);
} else {
index = (ha->pdev->subsystem_device & 0xff);
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES) {
strcpy(ha->model_number,
qla2x00_model_name[index * 2]);
ha->model_desc = qla2x00_model_name[index * 2 + 1];
strncpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc) - 1);
} else {
strcpy(ha->model_number, def);
}
}
if (IS_FWI2_CAPABLE(ha))
qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc,
sizeof(ha->model_desc));
}
/* On sparc systems, obtain port and node WWN from firmware
@ -1864,12 +1878,11 @@ qla2x00_rport_del(void *data)
{
fc_port_t *fcport = data;
struct fc_rport *rport;
unsigned long flags;
spin_lock_irqsave(&fcport->rport_lock, flags);
spin_lock_irq(fcport->ha->host->host_lock);
rport = fcport->drport;
fcport->drport = NULL;
spin_unlock_irqrestore(&fcport->rport_lock, flags);
spin_unlock_irq(fcport->ha->host->host_lock);
if (rport)
fc_remote_port_delete(rport);
}
@ -1898,7 +1911,6 @@ qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
atomic_set(&fcport->state, FCS_UNCONFIGURED);
fcport->flags = FCF_RLC_SUPPORT;
fcport->supported_classes = FC_COS_UNSPECIFIED;
spin_lock_init(&fcport->rport_lock);
return fcport;
}
@ -2007,8 +2019,10 @@ qla2x00_configure_loop(scsi_qla_host_t *ha)
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
if (test_bit(RSCN_UPDATE, &save_flags))
if (test_bit(RSCN_UPDATE, &save_flags)) {
ha->flags.rscn_queue_overflow = 1;
set_bit(RSCN_UPDATE, &ha->dpc_flags);
}
}
return (rval);
@ -2243,28 +2257,24 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
{
struct fc_rport_identifiers rport_ids;
struct fc_rport *rport;
unsigned long flags;
if (fcport->drport)
qla2x00_rport_del(fcport);
if (fcport->rport)
return;
rport_ids.node_name = wwn_to_u64(fcport->node_name);
rport_ids.port_name = wwn_to_u64(fcport->port_name);
rport_ids.port_id = fcport->d_id.b.domain << 16 |
fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
rport = fc_remote_port_add(ha->host, 0, &rport_ids);
fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
if (!rport) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate fc remote port!\n");
return;
}
spin_lock_irqsave(&fcport->rport_lock, flags);
fcport->rport = rport;
spin_lock_irq(fcport->ha->host->host_lock);
*((fc_port_t **)rport->dd_data) = fcport;
spin_unlock_irqrestore(&fcport->rport_lock, flags);
spin_unlock_irq(fcport->ha->host->host_lock);
rport->supported_classes = fcport->supported_classes;
@ -2565,7 +2575,8 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
} else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
kfree(swl);
swl = NULL;
} else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
} else if (ql2xiidmaenable &&
qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
qla2x00_gpsc(ha, swl);
}
}
@ -3220,7 +3231,8 @@ qla2x00_update_fcports(scsi_qla_host_t *ha)
/* Go with deferred removal of rport references. */
list_for_each_entry(fcport, &ha->fcports, list)
if (fcport->drport)
if (fcport->drport &&
atomic_read(&fcport->state) != FCS_UNCONFIGURED)
qla2x00_rport_del(fcport);
}
@ -3243,6 +3255,7 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
if (ha->flags.online) {
ha->flags.online = 0;
clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
ha->qla_stats.total_isp_aborts++;
qla_printk(KERN_INFO, ha,
"Performing ISP error recovery - ha= %p.\n", ha);
@ -3283,17 +3296,6 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
ha->isp_abort_cnt = 0;
clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
if (ha->eft) {
memset(ha->eft, 0, EFT_SIZE);
rval = qla2x00_enable_eft_trace(ha,
ha->eft_dma, EFT_NUM_BUFFERS);
if (rval) {
qla_printk(KERN_WARNING, ha,
"Unable to reinitialize EFT "
"(%d).\n", rval);
}
}
if (ha->fce) {
ha->flags.fce_enabled = 1;
memset(ha->fce, 0,
@ -3308,6 +3310,17 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
ha->flags.fce_enabled = 0;
}
}
if (ha->eft) {
memset(ha->eft, 0, EFT_SIZE);
rval = qla2x00_enable_eft_trace(ha,
ha->eft_dma, EFT_NUM_BUFFERS);
if (rval) {
qla_printk(KERN_WARNING, ha,
"Unable to reinitialize EFT "
"(%d).\n", rval);
}
}
} else { /* failed the ISP abort */
ha->flags.online = 1;
if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
@ -4026,8 +4039,8 @@ qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
ret = qla2x00_stop_firmware(ha);
for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
retries ; retries--) {
qla2x00_reset_chip(ha);
if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
ha->isp_ops->reset_chip(ha);
if (ha->isp_ops->chip_diag(ha) != QLA_SUCCESS)
continue;
if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
continue;
@ -4049,7 +4062,7 @@ qla24xx_configure_vhba(scsi_qla_host_t *ha)
rval = qla2x00_fw_ready(ha->parent);
if (rval == QLA_SUCCESS) {
clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
qla2x00_marker(ha->parent, 0, 0, MK_SYNC_ALL);
qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
}
ha->flags.management_server_logged_in = 0;

14
drivers/scsi/qla2xxx/qla_iocb.c
View File

@ -454,10 +454,11 @@ qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
{
int ret;
unsigned long flags = 0;
scsi_qla_host_t *pha = to_qla_parent(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
spin_lock_irqsave(&pha->hardware_lock, flags);
ret = __qla2x00_marker(ha, loop_id, lun, type);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_unlock_irqrestore(&pha->hardware_lock, flags);
return (ret);
}
@ -672,7 +673,7 @@ qla24xx_start_scsi(srb_t *sp)
{
int ret, nseg;
unsigned long flags;
scsi_qla_host_t *ha;
scsi_qla_host_t *ha, *pha;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t index;
@ -686,6 +687,7 @@ qla24xx_start_scsi(srb_t *sp)
/* Setup device pointers. */
ret = 0;
ha = sp->ha;
pha = to_qla_parent(ha);
reg = &ha->iobase->isp24;
cmd = sp->cmd;
/* So we know we haven't pci_map'ed anything yet */
@ -700,7 +702,7 @@ qla24xx_start_scsi(srb_t *sp)
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
spin_lock_irqsave(&pha->hardware_lock, flags);
/* Check for room in outstanding command list. */
handle = ha->current_outstanding_cmd;
@ -795,14 +797,14 @@ qla24xx_start_scsi(srb_t *sp)
ha->response_ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(ha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_unlock_irqrestore(&pha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_unlock_irqrestore(&pha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}

4
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -542,10 +542,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
break;
case MBA_PORT_UPDATE: /* Port database update */
/* Only handle SCNs for our Vport index. */
if (ha->parent && ha->vp_idx != (mb[3] & 0xff))
break;
/*
* If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
* event etc. earlier indicating loop is down) then process

9
drivers/scsi/qla2xxx/qla_mbx.c
View File

@ -918,6 +918,8 @@ qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa,
rval = qla2x00_mailbox_command(ha, mcp);
if (mcp->mb[0] == MBS_COMMAND_ERROR)
rval = QLA_COMMAND_ERROR;
else if (mcp->mb[0] == MBS_INVALID_COMMAND)
rval = QLA_INVALID_COMMAND;
/* Return data. */
*id = mcp->mb[1];
@ -2161,17 +2163,18 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp)
struct abort_entry_24xx *abt;
dma_addr_t abt_dma;
uint32_t handle;
scsi_qla_host_t *pha = to_qla_parent(ha);
DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
fcport = sp->fcport;
spin_lock_irqsave(&ha->hardware_lock, flags);
spin_lock_irqsave(&pha->hardware_lock, flags);
for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
if (ha->outstanding_cmds[handle] == sp)
if (pha->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_unlock_irqrestore(&pha->hardware_lock, flags);
if (handle == MAX_OUTSTANDING_COMMANDS) {
/* Command not found. */
return QLA_FUNCTION_FAILED;

16
drivers/scsi/qla2xxx/qla_mid.c
View File

@ -43,6 +43,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
set_bit(vp_id, ha->vp_idx_map);
ha->num_vhosts++;
ha->cur_vport_count++;
vha->vp_idx = vp_id;
list_add_tail(&vha->vp_list, &ha->vp_list);
mutex_unlock(&ha->vport_lock);
@ -58,6 +59,7 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
mutex_lock(&ha->vport_lock);
vp_id = vha->vp_idx;
ha->num_vhosts--;
ha->cur_vport_count--;
clear_bit(vp_id, ha->vp_idx_map);
list_del(&vha->vp_list);
mutex_unlock(&ha->vport_lock);
@ -103,8 +105,8 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
"loop_id=0x%04x :%x\n",
vha->host_no, fcport->loop_id, fcport->vp_idx));
atomic_set(&fcport->state, FCS_DEVICE_DEAD);
qla2x00_mark_device_lost(vha, fcport, 0, 0);
atomic_set(&fcport->state, FCS_UNCONFIGURED);
}
}
@ -276,7 +278,8 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
clear_bit(RESET_ACTIVE, &vha->dpc_flags);
}
if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
if (atomic_read(&vha->vp_state) == VP_ACTIVE &&
test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
qla2x00_loop_resync(vha);
clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
@ -390,7 +393,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
vha->parent = ha;
vha->fc_vport = fc_vport;
vha->device_flags = 0;
vha->instance = num_hosts;
vha->vp_idx = qla24xx_allocate_vp_id(vha);
if (vha->vp_idx > ha->max_npiv_vports) {
DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
@ -428,7 +430,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = MAX_LUNS;
host->unique_id = vha->instance;
host->unique_id = host->host_no;
host->max_id = MAX_TARGETS_2200;
host->transportt = qla2xxx_transport_vport_template;
@ -436,12 +438,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
vha->host_no, vha));
vha->flags.init_done = 1;
num_hosts++;
mutex_lock(&ha->vport_lock);
set_bit(vha->vp_idx, ha->vp_idx_map);
ha->cur_vport_count++;
mutex_unlock(&ha->vport_lock);
return vha;

94
drivers/scsi/qla2xxx/qla_os.c
View File

@ -27,7 +27,6 @@ char qla2x00_version_str[40];
*/
static struct kmem_cache *srb_cachep;
int num_hosts;
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xlogintimeout,
@ -87,6 +86,13 @@ MODULE_PARM_DESC(ql2xqfullrampup,
"depth for a device after a queue-full condition has been "
"detected. Default is 120 seconds.");
int ql2xiidmaenable=1;
module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xiidmaenable,
"Enables iIDMA settings "
"Default is 1 - perform iIDMA. 0 - no iIDMA.");
/*
* SCSI host template entry points
*/
@ -388,7 +394,7 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
}
/* Close window on fcport/rport state-transitioning. */
if (!*(fc_port_t **)rport->dd_data) {
if (fcport->drport) {
cmd->result = DID_IMM_RETRY << 16;
goto qc_fail_command;
}
@ -443,7 +449,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
int rval;
scsi_qla_host_t *pha = to_qla_parent(ha);
if (unlikely(pci_channel_offline(ha->pdev))) {
if (unlikely(pci_channel_offline(pha->pdev))) {
cmd->result = DID_REQUEUE << 16;
goto qc24_fail_command;
}
@ -455,7 +461,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
}
/* Close window on fcport/rport state-transitioning. */
if (!*(fc_port_t **)rport->dd_data) {
if (fcport->drport) {
cmd->result = DID_IMM_RETRY << 16;
goto qc24_fail_command;
}
@ -617,6 +623,40 @@ qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
return (return_status);
}
void
qla2x00_abort_fcport_cmds(fc_port_t *fcport)
{
int cnt;
unsigned long flags;
srb_t *sp;
scsi_qla_host_t *ha = fcport->ha;
scsi_qla_host_t *pha = to_qla_parent(ha);
spin_lock_irqsave(&pha->hardware_lock, flags);
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
sp = pha->outstanding_cmds[cnt];
if (!sp)
continue;
if (sp->fcport != fcport)
continue;
spin_unlock_irqrestore(&pha->hardware_lock, flags);
if (ha->isp_ops->abort_command(ha, sp)) {
DEBUG2(qla_printk(KERN_WARNING, ha,
"Abort failed -- %lx\n", sp->cmd->serial_number));
} else {
if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
QLA_SUCCESS)
DEBUG2(qla_printk(KERN_WARNING, ha,
"Abort failed while waiting -- %lx\n",
sp->cmd->serial_number));
}
spin_lock_irqsave(&pha->hardware_lock, flags);
}
spin_unlock_irqrestore(&pha->hardware_lock, flags);
}
static void
qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
{
@ -1073,7 +1113,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev)
else
scsi_deactivate_tcq(sdev, ha->max_q_depth);
rport->dev_loss_tmo = ha->port_down_retry_count + 5;
rport->dev_loss_tmo = ha->port_down_retry_count;
return 0;
}
@ -1629,9 +1669,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
}
host->can_queue = ha->request_q_length + 128;
/* load the F/W, read paramaters, and init the H/W */
ha->instance = num_hosts;
mutex_init(&ha->vport_lock);
init_completion(&ha->mbx_cmd_comp);
complete(&ha->mbx_cmd_comp);
@ -1679,7 +1716,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
host->this_id = 255;
host->cmd_per_lun = 3;
host->unique_id = ha->instance;
host->unique_id = host->host_no;
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = MAX_LUNS;
@ -1700,8 +1737,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->flags.init_done = 1;
ha->flags.online = 1;
num_hosts++;
ret = scsi_add_host(host, &pdev->dev);
if (ret)
goto probe_failed;
@ -1813,27 +1848,21 @@ static inline void
qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
int defer)
{
unsigned long flags;
struct fc_rport *rport;
scsi_qla_host_t *pha = to_qla_parent(ha);
if (!fcport->rport)
return;
rport = fcport->rport;
if (defer) {
spin_lock_irqsave(&fcport->rport_lock, flags);
spin_lock_irq(ha->host->host_lock);
fcport->drport = rport;
fcport->rport = NULL;
*(fc_port_t **)rport->dd_data = NULL;
spin_unlock_irqrestore(&fcport->rport_lock, flags);
set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
} else {
spin_lock_irqsave(&fcport->rport_lock, flags);
fcport->rport = NULL;
*(fc_port_t **)rport->dd_data = NULL;
spin_unlock_irqrestore(&fcport->rport_lock, flags);
spin_unlock_irq(ha->host->host_lock);
set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags);
qla2xxx_wake_dpc(pha);
} else
fc_remote_port_delete(rport);
}
}
/*
@ -1903,7 +1932,7 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
scsi_qla_host_t *pha = to_qla_parent(ha);
list_for_each_entry(fcport, &pha->fcports, list) {
if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
if (ha->vp_idx != fcport->vp_idx)
continue;
/*
* No point in marking the device as lost, if the device is
@ -1911,17 +1940,10 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
*/
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
continue;
if (atomic_read(&fcport->state) == FCS_ONLINE) {
if (defer)
qla2x00_schedule_rport_del(ha, fcport, defer);
else if (ha->vp_idx == fcport->vp_idx)
qla2x00_schedule_rport_del(ha, fcport, defer);
}
if (atomic_read(&fcport->state) == FCS_ONLINE)
qla2x00_schedule_rport_del(ha, fcport, defer);
atomic_set(&fcport->state, FCS_DEVICE_LOST);
}
if (defer)
qla2xxx_wake_dpc(ha);
}
/*
@ -2156,7 +2178,7 @@ qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
static int
qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
{
unsigned long flags;
unsigned long uninitialized_var(flags);
scsi_qla_host_t *pha = to_qla_parent(ha);
if (!locked)
@ -2313,8 +2335,10 @@ qla2x00_do_dpc(void *data)
ha->host_no));
}
if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) {
qla2x00_update_fcports(ha);
clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
}
if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
(!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {

48
drivers/scsi/qla2xxx/qla_sup.c
View File

@ -869,11 +869,9 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
uint32_t i;
uint32_t *dwptr;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
unsigned long flags;
ret = QLA_SUCCESS;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Enable flash write. */
WRT_REG_DWORD(&reg->ctrl_status,
RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
@ -907,7 +905,6 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
WRT_REG_DWORD(&reg->ctrl_status,
RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
RD_REG_DWORD(&reg->ctrl_status); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return ret;
}
@ -2305,6 +2302,51 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf)
return ret;
}
static int
qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
{
if (pos >= end || *pos != 0x82)
return 0;
pos += 3 + pos[1];
if (pos >= end || *pos != 0x90)
return 0;
pos += 3 + pos[1];
if (pos >= end || *pos != 0x78)
return 0;
return 1;
}
int
qla2xxx_get_vpd_field(scsi_qla_host_t *ha, char *key, char *str, size_t size)
{
uint8_t *pos = ha->vpd;
uint8_t *end = pos + ha->vpd_size;
int len = 0;
if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
return 0;
while (pos < end && *pos != 0x78) {
len = (*pos == 0x82) ? pos[1] : pos[2];
if (!strncmp(pos, key, strlen(key)))
break;
if (*pos != 0x90 && *pos != 0x91)
pos += len;
pos += 3;
}
if (pos < end - len && *pos != 0x78)
return snprintf(str, size, "%.*s", len, pos + 3);
return 0;
}
static int
qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata)
{

2
drivers/scsi/qla2xxx/qla_version.h
View File

@ -7,7 +7,7 @@
/*
* Driver version
*/
#define QLA2XXX_VERSION "8.02.01-k4"
#define QLA2XXX_VERSION "8.02.01-k6"
#define QLA_DRIVER_MAJOR_VER 8
#define QLA_DRIVER_MINOR_VER 2

4
drivers/scsi/qla4xxx/ql4_os.c
View File

@ -46,6 +46,8 @@ MODULE_PARM_DESC(ql4xextended_error_logging,
int ql4_mod_unload = 0;
#define QL4_DEF_QDEPTH 32
/*
* SCSI host template entry points
*/
@ -1387,7 +1389,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev)
sdev->hostdata = ddb;
sdev->tagged_supported = 1;
scsi_activate_tcq(sdev, sdev->host->can_queue);
scsi_activate_tcq(sdev, QL4_DEF_QDEPTH);
return 0;
}

55
drivers/scsi/scsi.c
View File

@ -197,10 +197,42 @@ static void
scsi_pool_free_command(struct scsi_host_cmd_pool *pool,
struct scsi_cmnd *cmd)
{
if (cmd->prot_sdb)
kmem_cache_free(scsi_sdb_cache, cmd->prot_sdb);
kmem_cache_free(pool->sense_slab, cmd->sense_buffer);
kmem_cache_free(pool->cmd_slab, cmd);
}
/**
* scsi_host_alloc_command - internal function to allocate command
* @shost: SCSI host whose pool to allocate from
* @gfp_mask: mask for the allocation
*
* Returns a fully allocated command with sense buffer and protection
* data buffer (where applicable) or NULL on failure
*/
static struct scsi_cmnd *
scsi_host_alloc_command(struct Scsi_Host *shost, gfp_t gfp_mask)
{
struct scsi_cmnd *cmd;
cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask);
if (!cmd)
return NULL;
if (scsi_host_get_prot(shost) >= SHOST_DIX_TYPE0_PROTECTION) {
cmd->prot_sdb = kmem_cache_zalloc(scsi_sdb_cache, gfp_mask);
if (!cmd->prot_sdb) {
scsi_pool_free_command(shost->cmd_pool, cmd);
return NULL;
}
}
return cmd;
}
/**
* __scsi_get_command - Allocate a struct scsi_cmnd
* @shost: host to transmit command
@ -214,7 +246,7 @@ struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask)
struct scsi_cmnd *cmd;
unsigned char *buf;
cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask);
cmd = scsi_host_alloc_command(shost, gfp_mask);
if (unlikely(!cmd)) {
unsigned long flags;
@ -457,7 +489,7 @@ int scsi_setup_command_freelist(struct Scsi_Host *shost)
/*
* Get one backup command for this host.
*/
cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask);
cmd = scsi_host_alloc_command(shost, gfp_mask);
if (!cmd) {
scsi_put_host_cmd_pool(gfp_mask);
shost->cmd_pool = NULL;
@ -902,11 +934,20 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags)
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
/* Check to see if the queue is managed by the block layer.
* If it is, and we fail to adjust the depth, exit. */
if (blk_queue_tagged(sdev->request_queue) &&
blk_queue_resize_tags(sdev->request_queue, tags) != 0)
goto out;
/*
* Check to see if the queue is managed by the block layer.
* If it is, and we fail to adjust the depth, exit.
*
* Do not resize the tag map if it is a host wide share bqt,
* because the size should be the hosts's can_queue. If there
* is more IO than the LLD's can_queue (so there are not enuogh
* tags) request_fn's host queue ready check will handle it.
*/
if (!sdev->host->bqt) {
if (blk_queue_tagged(sdev->request_queue) &&
blk_queue_resize_tags(sdev->request_queue, tags) != 0)
goto out;
}
sdev->queue_depth = tags;
switch (tagged) {

12
drivers/scsi/scsi_debug.c
View File

@ -1753,7 +1753,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC);
if (!open_devip) {
printk(KERN_ERR "%s: out of memory at line %d\n",
__FUNCTION__, __LINE__);
__func__, __LINE__);
return NULL;
}
}
@ -2656,7 +2656,7 @@ static int sdebug_add_adapter(void)
sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
if (NULL == sdbg_host) {
printk(KERN_ERR "%s: out of memory at line %d\n",
__FUNCTION__, __LINE__);
__func__, __LINE__);
return -ENOMEM;
}
@ -2667,7 +2667,7 @@ static int sdebug_add_adapter(void)
sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
if (!sdbg_devinfo) {
printk(KERN_ERR "%s: out of memory at line %d\n",
__FUNCTION__, __LINE__);
__func__, __LINE__);
error = -ENOMEM;
goto clean;
}
@ -2987,7 +2987,7 @@ static int sdebug_driver_probe(struct device * dev)
hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host));
if (NULL == hpnt) {
printk(KERN_ERR "%s: scsi_register failed\n", __FUNCTION__);
printk(KERN_ERR "%s: scsi_register failed\n", __func__);
error = -ENODEV;
return error;
}
@ -3002,7 +3002,7 @@ static int sdebug_driver_probe(struct device * dev)
error = scsi_add_host(hpnt, &sdbg_host->dev);
if (error) {
printk(KERN_ERR "%s: scsi_add_host failed\n", __FUNCTION__);
printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);
error = -ENODEV;
scsi_host_put(hpnt);
} else
@ -3021,7 +3021,7 @@ static int sdebug_driver_remove(struct device * dev)
if (!sdbg_host) {
printk(KERN_ERR "%s: Unable to locate host info\n",
__FUNCTION__);
__func__);
return -ENODEV;
}

6
drivers/scsi/scsi_devinfo.c
View File

@ -272,7 +272,7 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
}
if (from_length > to_length)
printk(KERN_WARNING "%s: %s string '%s' is too long\n",
__FUNCTION__, name, from);
__func__, name, from);
}
/**
@ -298,7 +298,7 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
if (!devinfo) {
printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
printk(KERN_ERR "%s: no memory\n", __func__);
return -ENOMEM;
}
@ -363,7 +363,7 @@ static int scsi_dev_info_list_add_str(char *dev_list)
strflags = strsep(&next, next_check);
if (!model || !strflags) {
printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
" '%s'\n", __FUNCTION__, vendor, model,
" '%s'\n", __func__, vendor, model,
strflags);
res = -EINVAL;
} else

34
drivers/scsi/scsi_error.c
View File

@ -139,7 +139,7 @@ void scsi_add_timer(struct scsi_cmnd *scmd, int timeout,
scmd->eh_timeout.function = (void (*)(unsigned long)) complete;
SCSI_LOG_ERROR_RECOVERY(5, printk("%s: scmd: %p, time:"
" %d, (%p)\n", __FUNCTION__,
" %d, (%p)\n", __func__,
scmd, timeout, complete));
add_timer(&scmd->eh_timeout);
@ -163,7 +163,7 @@ int scsi_delete_timer(struct scsi_cmnd *scmd)
rtn = del_timer(&scmd->eh_timeout);
SCSI_LOG_ERROR_RECOVERY(5, printk("%s: scmd: %p,"
" rtn: %d\n", __FUNCTION__,
" rtn: %d\n", __func__,
scmd, rtn));
scmd->eh_timeout.data = (unsigned long)NULL;
@ -233,7 +233,7 @@ int scsi_block_when_processing_errors(struct scsi_device *sdev)
online = scsi_device_online(sdev);
SCSI_LOG_ERROR_RECOVERY(5, printk("%s: rtn: %d\n", __FUNCTION__,
SCSI_LOG_ERROR_RECOVERY(5, printk("%s: rtn: %d\n", __func__,
online));
return online;
@ -271,7 +271,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost,
SCSI_LOG_ERROR_RECOVERY(3,
sdev_printk(KERN_INFO, sdev,
"%s: cmds failed: %d, cancel: %d\n",
__FUNCTION__, cmd_failed,
__func__, cmd_failed,
cmd_cancel));
cmd_cancel = 0;
cmd_failed = 0;
@ -344,6 +344,9 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
return /* soft_error */ SUCCESS;
case ABORTED_COMMAND:
if (sshdr.asc == 0x10) /* DIF */
return SUCCESS;
return NEEDS_RETRY;
case NOT_READY:
case UNIT_ATTENTION:
@ -470,7 +473,7 @@ static void scsi_eh_done(struct scsi_cmnd *scmd)
SCSI_LOG_ERROR_RECOVERY(3,
printk("%s scmd: %p result: %x\n",
__FUNCTION__, scmd, scmd->result));
__func__, scmd, scmd->result));
eh_action = scmd->device->host->eh_action;
if (eh_action)
@ -487,7 +490,7 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd)
int rtn;
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Host RST\n",
__FUNCTION__));
__func__));
if (!scmd->device->host->hostt->eh_host_reset_handler)
return FAILED;
@ -516,7 +519,7 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd)
int rtn;
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Bus RST\n",
__FUNCTION__));
__func__));
if (!scmd->device->host->hostt->eh_bus_reset_handler)
return FAILED;
@ -664,7 +667,10 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses,
ses->sdb = scmd->sdb;
ses->next_rq = scmd->request->next_rq;
ses->result = scmd->result;
ses->underflow = scmd->underflow;
ses->prot_op = scmd->prot_op;
scmd->prot_op = SCSI_PROT_NORMAL;
scmd->cmnd = ses->eh_cmnd;
memset(scmd->cmnd, 0, BLK_MAX_CDB);
memset(&scmd->sdb, 0, sizeof(scmd->sdb));
@ -722,6 +728,8 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses)
scmd->sdb = ses->sdb;
scmd->request->next_rq = ses->next_rq;
scmd->result = ses->result;
scmd->underflow = ses->underflow;
scmd->prot_op = ses->prot_op;
}
EXPORT_SYMBOL(scsi_eh_restore_cmnd);
@ -766,7 +774,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
SCSI_LOG_ERROR_RECOVERY(3,
printk("%s: scmd: %p, timeleft: %ld\n",
__FUNCTION__, scmd, timeleft));
__func__, scmd, timeleft));
/*
* If there is time left scsi_eh_done got called, and we will
@ -778,7 +786,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
rtn = scsi_eh_completed_normally(scmd);
SCSI_LOG_ERROR_RECOVERY(3,
printk("%s: scsi_eh_completed_normally %x\n",
__FUNCTION__, rtn));
__func__, rtn));
switch (rtn) {
case SUCCESS:
@ -913,7 +921,7 @@ retry_tur:
rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0);
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n",
__FUNCTION__, scmd, rtn));
__func__, scmd, rtn));
switch (rtn) {
case NEEDS_RETRY:
@ -1296,7 +1304,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
if (!scsi_device_online(scmd->device)) {
SCSI_LOG_ERROR_RECOVERY(5, printk("%s: device offline - report"
" as SUCCESS\n",
__FUNCTION__));
__func__));
return SUCCESS;
}
@ -1511,7 +1519,7 @@ static void scsi_restart_operations(struct Scsi_Host *shost)
* ioctls to queued block devices.
*/
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: waking up host to restart\n",
__FUNCTION__));
__func__));
spin_lock_irqsave(shost->host_lock, flags);
if (scsi_host_set_state(shost, SHOST_RUNNING))
@ -1835,7 +1843,7 @@ scsi_reset_provider(struct scsi_device *dev, int flag)
*/
SCSI_LOG_ERROR_RECOVERY(3,
printk("%s: waking up host to restart after TMF\n",
__FUNCTION__));
__func__));
wake_up(&shost->host_wait);

55
drivers/scsi/scsi_lib.c
View File

@ -65,7 +65,7 @@ static struct scsi_host_sg_pool scsi_sg_pools[] = {
};
#undef SP
static struct kmem_cache *scsi_sdb_cache;
struct kmem_cache *scsi_sdb_cache;
static void scsi_run_queue(struct request_queue *q);
@ -787,6 +787,9 @@ void scsi_release_buffers(struct scsi_cmnd *cmd)
kmem_cache_free(scsi_sdb_cache, bidi_sdb);
cmd->request->next_rq->special = NULL;
}
if (scsi_prot_sg_count(cmd))
scsi_free_sgtable(cmd->prot_sdb);
}
EXPORT_SYMBOL(scsi_release_buffers);
@ -947,9 +950,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
* 6-byte command.
*/
scsi_requeue_command(q, cmd);
return;
} else {
} else if (sshdr.asc == 0x10) /* DIX */
scsi_end_request(cmd, -EIO, this_count, 0);
else
scsi_end_request(cmd, -EIO, this_count, 1);
return;
case ABORTED_COMMAND:
if (sshdr.asc == 0x10) { /* DIF */
scsi_end_request(cmd, -EIO, this_count, 0);
return;
}
break;
@ -1072,6 +1080,26 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask)
goto err_exit;
}
if (blk_integrity_rq(cmd->request)) {
struct scsi_data_buffer *prot_sdb = cmd->prot_sdb;
int ivecs, count;
BUG_ON(prot_sdb == NULL);
ivecs = blk_rq_count_integrity_sg(cmd->request);
if (scsi_alloc_sgtable(prot_sdb, ivecs, gfp_mask)) {
error = BLKPREP_DEFER;
goto err_exit;
}
count = blk_rq_map_integrity_sg(cmd->request,
prot_sdb->table.sgl);
BUG_ON(unlikely(count > ivecs));
cmd->prot_sdb = prot_sdb;
cmd->prot_sdb->table.nents = count;
}
return BLKPREP_OK ;
err_exit:
@ -1367,7 +1395,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
if (unlikely(cmd == NULL)) {
printk(KERN_CRIT "impossible request in %s.\n",
__FUNCTION__);
__func__);
BUG();
}
@ -1491,12 +1519,27 @@ static void scsi_request_fn(struct request_queue *q)
printk(KERN_CRIT "impossible request in %s.\n"
"please mail a stack trace to "
"linux-scsi@vger.kernel.org\n",
__FUNCTION__);
__func__);
blk_dump_rq_flags(req, "foo");
BUG();
}
spin_lock(shost->host_lock);
/*
* We hit this when the driver is using a host wide
* tag map. For device level tag maps the queue_depth check
* in the device ready fn would prevent us from trying
* to allocate a tag. Since the map is a shared host resource
* we add the dev to the starved list so it eventually gets
* a run when a tag is freed.
*/
if (blk_queue_tagged(q) && !blk_rq_tagged(req)) {
if (list_empty(&sdev->starved_entry))
list_add_tail(&sdev->starved_entry,
&shost->starved_list);
goto not_ready;
}
if (!scsi_host_queue_ready(q, shost, sdev))
goto not_ready;
if (scsi_target(sdev)->single_lun) {
@ -2486,7 +2529,7 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sgl, int sg_count,
if (unlikely(i == sg_count)) {
printk(KERN_ERR "%s: Bytes in sg: %zu, requested offset %zu, "
"elements %d\n",
__FUNCTION__, sg_len, *offset, sg_count);
__func__, sg_len, *offset, sg_count);
WARN_ON(1);
return NULL;
}

8
drivers/scsi/scsi_netlink.c
View File

@ -55,7 +55,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
if ((nlh->nlmsg_len < (sizeof(*nlh) + sizeof(*hdr))) ||
(skb->len < nlh->nlmsg_len)) {
printk(KERN_WARNING "%s: discarding partial skb\n",
__FUNCTION__);
__func__);
return;
}
@ -82,7 +82,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
if (nlh->nlmsg_len < (sizeof(*nlh) + hdr->msglen)) {
printk(KERN_WARNING "%s: discarding partial message\n",
__FUNCTION__);
__func__);
return;
}
@ -139,7 +139,7 @@ scsi_netlink_init(void)
error = netlink_register_notifier(&scsi_netlink_notifier);
if (error) {
printk(KERN_ERR "%s: register of event handler failed - %d\n",
__FUNCTION__, error);
__func__, error);
return;
}
@ -148,7 +148,7 @@ scsi_netlink_init(void)
THIS_MODULE);
if (!scsi_nl_sock) {
printk(KERN_ERR "%s: register of recieve handler failed\n",
__FUNCTION__);
__func__);
netlink_unregister_notifier(&scsi_netlink_notifier);
}

1
drivers/scsi/scsi_priv.h
View File

@ -77,6 +77,7 @@ extern void scsi_exit_queue(void);
struct request_queue;
struct request;
extern int scsi_prep_fn(struct request_queue *, struct request *);
extern struct kmem_cache *scsi_sdb_cache;
/* scsi_proc.c */
#ifdef CONFIG_SCSI_PROC_FS

4
drivers/scsi/scsi_proc.c
View File

@ -114,7 +114,7 @@ void scsi_proc_hostdir_add(struct scsi_host_template *sht)
sht->proc_dir = proc_mkdir(sht->proc_name, proc_scsi);
if (!sht->proc_dir)
printk(KERN_ERR "%s: proc_mkdir failed for %s\n",
__FUNCTION__, sht->proc_name);
__func__, sht->proc_name);
else
sht->proc_dir->owner = sht->module;
}
@ -157,7 +157,7 @@ void scsi_proc_host_add(struct Scsi_Host *shost)
sht->proc_dir, proc_scsi_read, shost);
if (!p) {
printk(KERN_ERR "%s: Failed to register host %d in"
"%s\n", __FUNCTION__, shost->host_no,
"%s\n", __func__, shost->host_no,
sht->proc_name);
return;
}

13
drivers/scsi/scsi_scan.c
View File

@ -318,7 +318,7 @@ out_device_destroy:
put_device(&sdev->sdev_gendev);
out:
if (display_failure_msg)
printk(ALLOC_FAILURE_MSG, __FUNCTION__);
printk(ALLOC_FAILURE_MSG, __func__);
return NULL;
}
@ -404,7 +404,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
starget = kzalloc(size, GFP_KERNEL);
if (!starget) {
printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
printk(KERN_ERR "%s: allocation failure\n", __func__);
return NULL;
}
dev = &starget->dev;
@ -1337,7 +1337,7 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
lun_data = kmalloc(length, GFP_ATOMIC |
(sdev->host->unchecked_isa_dma ? __GFP_DMA : 0));
if (!lun_data) {
printk(ALLOC_FAILURE_MSG, __FUNCTION__);
printk(ALLOC_FAILURE_MSG, __func__);
goto out;
}
@ -1649,7 +1649,7 @@ int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,
{
SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost,
"%s: <%u:%u:%u>\n",
__FUNCTION__, channel, id, lun));
__func__, channel, id, lun));
if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||
((id != SCAN_WILD_CARD) && (id >= shost->max_id)) ||
@ -1703,7 +1703,7 @@ static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost)
return NULL;
if (shost->async_scan) {
printk("%s called twice for host %d", __FUNCTION__,
printk("%s called twice for host %d", __func__,
shost->host_no);
dump_stack();
return NULL;
@ -1757,9 +1757,10 @@ static void scsi_finish_async_scan(struct async_scan_data *data)
mutex_lock(&shost->scan_mutex);
if (!shost->async_scan) {
printk("%s called twice for host %d", __FUNCTION__,
printk("%s called twice for host %d", __func__,
shost->host_no);
dump_stack();
mutex_unlock(&shost->scan_mutex);
return;
}

4
drivers/scsi/scsi_sysfs.c
View File

@ -249,6 +249,8 @@ shost_rd_attr(cmd_per_lun, "%hd\n");
shost_rd_attr(can_queue, "%hd\n");
shost_rd_attr(sg_tablesize, "%hu\n");
shost_rd_attr(unchecked_isa_dma, "%d\n");
shost_rd_attr(prot_capabilities, "%u\n");
shost_rd_attr(prot_guard_type, "%hd\n");
shost_rd_attr2(proc_name, hostt->proc_name, "%s\n");
static struct attribute *scsi_sysfs_shost_attrs[] = {
@ -263,6 +265,8 @@ static struct attribute *scsi_sysfs_shost_attrs[] = {
&dev_attr_hstate.attr,
&dev_attr_supported_mode.attr,
&dev_attr_active_mode.attr,
&dev_attr_prot_capabilities.attr,
&dev_attr_prot_guard_type.attr,
NULL
};

2
drivers/scsi/scsi_tgt_priv.h
View File

@ -6,7 +6,7 @@ struct task_struct;
/* tmp - will replace with SCSI logging stuff */
#define eprintk(fmt, args...) \
do { \
printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \
printk("%s(%d) " fmt, __func__, __LINE__, ##args); \
} while (0)
#define dprintk(fmt, args...)

12
drivers/scsi/scsi_transport_fc.c
View File

@ -571,7 +571,7 @@ send_fail:
name = get_fc_host_event_code_name(event_code);
printk(KERN_WARNING
"%s: Dropped Event : host %d %s data 0x%08x - err %d\n",
__FUNCTION__, shost->host_no,
__func__, shost->host_no,
(name) ? name : "<unknown>", event_data, err);
return;
}
@ -644,7 +644,7 @@ send_vendor_fail_skb:
send_vendor_fail:
printk(KERN_WARNING
"%s: Dropped Event : host %d vendor_unique - err %d\n",
__FUNCTION__, shost->host_no, err);
__func__, shost->host_no, err);
return;
}
EXPORT_SYMBOL(fc_host_post_vendor_event);
@ -2464,7 +2464,7 @@ fc_rport_create(struct Scsi_Host *shost, int channel,
size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size);
rport = kzalloc(size, GFP_KERNEL);
if (unlikely(!rport)) {
printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
printk(KERN_ERR "%s: allocation failure\n", __func__);
return NULL;
}
@ -3137,7 +3137,7 @@ fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev,
size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size);
vport = kzalloc(size, GFP_KERNEL);
if (unlikely(!vport)) {
printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
printk(KERN_ERR "%s: allocation failure\n", __func__);
return -ENOMEM;
}
@ -3201,7 +3201,7 @@ fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev,
printk(KERN_ERR
"%s: Cannot create vport symlinks for "
"%s, err=%d\n",
__FUNCTION__, dev->bus_id, error);
__func__, dev->bus_id, error);
}
spin_lock_irqsave(shost->host_lock, flags);
vport->flags &= ~FC_VPORT_CREATING;
@ -3314,7 +3314,7 @@ fc_vport_sched_delete(struct work_struct *work)
if (stat)
dev_printk(KERN_ERR, vport->dev.parent,
"%s: %s could not be deleted created via "
"shost%d channel %d - error %d\n", __FUNCTION__,
"shost%d channel %d - error %d\n", __func__,
vport->dev.bus_id, vport->shost->host_no,
vport->channel, stat);
}

4
drivers/scsi/scsi_transport_sas.c
View File

@ -779,7 +779,7 @@ static void sas_port_create_link(struct sas_port *port,
return;
err:
printk(KERN_ERR "%s: Cannot create port links, err=%d\n",
__FUNCTION__, res);
__func__, res);
}
static void sas_port_delete_link(struct sas_port *port,
@ -1029,7 +1029,7 @@ void sas_port_mark_backlink(struct sas_port *port)
return;
err:
printk(KERN_ERR "%s: Cannot create port backlink, err=%d\n",
__FUNCTION__, res);
__func__, res);
}
EXPORT_SYMBOL(sas_port_mark_backlink);

291
drivers/scsi/sd.c
View File

@ -99,8 +99,7 @@ static void scsi_disk_release(struct device *cdev);
static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *);
static void sd_print_result(struct scsi_disk *, int);
static DEFINE_IDR(sd_index_idr);
static DEFINE_SPINLOCK(sd_index_lock);
static DEFINE_IDA(sd_index_ida);
/* This semaphore is used to mediate the 0->1 reference get in the
* face of object destruction (i.e. we can't allow a get on an
@ -234,6 +233,24 @@ sd_show_allow_restart(struct device *dev, struct device_attribute *attr,
return snprintf(buf, 40, "%d\n", sdkp->device->allow_restart);
}
static ssize_t
sd_show_protection_type(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_disk *sdkp = to_scsi_disk(dev);
return snprintf(buf, 20, "%u\n", sdkp->protection_type);
}
static ssize_t
sd_show_app_tag_own(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_disk *sdkp = to_scsi_disk(dev);
return snprintf(buf, 20, "%u\n", sdkp->ATO);
}
static struct device_attribute sd_disk_attrs[] = {
__ATTR(cache_type, S_IRUGO|S_IWUSR, sd_show_cache_type,
sd_store_cache_type),
@ -242,6 +259,8 @@ static struct device_attribute sd_disk_attrs[] = {
sd_store_allow_restart),
__ATTR(manage_start_stop, S_IRUGO|S_IWUSR, sd_show_manage_start_stop,
sd_store_manage_start_stop),
__ATTR(protection_type, S_IRUGO, sd_show_protection_type, NULL),
__ATTR(app_tag_own, S_IRUGO, sd_show_app_tag_own, NULL),
__ATTR_NULL,
};
@ -354,7 +373,9 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
struct scsi_cmnd *SCpnt;
struct scsi_device *sdp = q->queuedata;
struct gendisk *disk = rq->rq_disk;
struct scsi_disk *sdkp;
sector_t block = rq->sector;
sector_t threshold;
unsigned int this_count = rq->nr_sectors;
unsigned int timeout = sdp->timeout;
int ret;
@ -370,6 +391,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
if (ret != BLKPREP_OK)
goto out;
SCpnt = rq->special;
sdkp = scsi_disk(disk);
/* from here on until we're complete, any goto out
* is used for a killable error condition */
@ -401,13 +423,21 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
}
/*
* Some devices (some sdcards for one) don't like it if the
* last sector gets read in a larger then 1 sector read.
* Some SD card readers can't handle multi-sector accesses which touch
* the last one or two hardware sectors. Split accesses as needed.
*/
if (unlikely(sdp->last_sector_bug &&
rq->nr_sectors > sdp->sector_size / 512 &&
block + this_count == get_capacity(disk)))
this_count -= sdp->sector_size / 512;
threshold = get_capacity(disk) - SD_LAST_BUGGY_SECTORS *
(sdp->sector_size / 512);
if (unlikely(sdp->last_sector_bug && block + this_count > threshold)) {
if (block < threshold) {
/* Access up to the threshold but not beyond */
this_count = threshold - block;
} else {
/* Access only a single hardware sector */
this_count = sdp->sector_size / 512;
}
}
SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, "block=%llu\n",
(unsigned long long)block));
@ -459,6 +489,11 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
}
SCpnt->cmnd[0] = WRITE_6;
SCpnt->sc_data_direction = DMA_TO_DEVICE;
if (blk_integrity_rq(rq) &&
sd_dif_prepare(rq, block, sdp->sector_size) == -EIO)
goto out;
} else if (rq_data_dir(rq) == READ) {
SCpnt->cmnd[0] = READ_6;
SCpnt->sc_data_direction = DMA_FROM_DEVICE;
@ -473,8 +508,12 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
"writing" : "reading", this_count,
rq->nr_sectors));
SCpnt->cmnd[1] = 0;
/* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */
if (scsi_host_dif_capable(sdp->host, sdkp->protection_type))
SCpnt->cmnd[1] = 1 << 5;
else
SCpnt->cmnd[1] = 0;
if (block > 0xffffffff) {
SCpnt->cmnd[0] += READ_16 - READ_6;
SCpnt->cmnd[1] |= blk_fua_rq(rq) ? 0x8 : 0;
@ -492,6 +531,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
SCpnt->cmnd[13] = (unsigned char) this_count & 0xff;
SCpnt->cmnd[14] = SCpnt->cmnd[15] = 0;
} else if ((this_count > 0xff) || (block > 0x1fffff) ||
scsi_device_protection(SCpnt->device) ||
SCpnt->device->use_10_for_rw) {
if (this_count > 0xffff)
this_count = 0xffff;
@ -526,6 +566,10 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
}
SCpnt->sdb.length = this_count * sdp->sector_size;
/* If DIF or DIX is enabled, tell HBA how to handle request */
if (sdkp->protection_type || scsi_prot_sg_count(SCpnt))
sd_dif_op(SCpnt, sdkp->protection_type, scsi_prot_sg_count(SCpnt));
/*
* We shouldn't disconnect in the middle of a sector, so with a dumb
* host adapter, it's safe to assume that we can at least transfer
@ -920,6 +964,48 @@ static struct block_device_operations sd_fops = {
.revalidate_disk = sd_revalidate_disk,
};
static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd)
{
u64 start_lba = scmd->request->sector;
u64 end_lba = scmd->request->sector + (scsi_bufflen(scmd) / 512);
u64 bad_lba;
int info_valid;
if (!blk_fs_request(scmd->request))
return 0;
info_valid = scsi_get_sense_info_fld(scmd->sense_buffer,
SCSI_SENSE_BUFFERSIZE,
&bad_lba);
if (!info_valid)
return 0;
if (scsi_bufflen(scmd) <= scmd->device->sector_size)
return 0;
if (scmd->device->sector_size < 512) {
/* only legitimate sector_size here is 256 */
start_lba <<= 1;
end_lba <<= 1;
} else {
/* be careful ... don't want any overflows */
u64 factor = scmd->device->sector_size / 512;
do_div(start_lba, factor);
do_div(end_lba, factor);
}
/* The bad lba was reported incorrectly, we have no idea where
* the error is.
*/
if (bad_lba < start_lba || bad_lba >= end_lba)
return 0;
/* This computation should always be done in terms of
* the resolution of the device's medium.
*/
return (bad_lba - start_lba) * scmd->device->sector_size;
}
/**
* sd_done - bottom half handler: called when the lower level
* driver has completed (successfully or otherwise) a scsi command.
@ -930,15 +1016,10 @@ static struct block_device_operations sd_fops = {
static int sd_done(struct scsi_cmnd *SCpnt)
{
int result = SCpnt->result;
unsigned int xfer_size = scsi_bufflen(SCpnt);
unsigned int good_bytes = result ? 0 : xfer_size;
u64 start_lba = SCpnt->request->sector;
u64 end_lba = SCpnt->request->sector + (xfer_size / 512);
u64 bad_lba;
unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt);
struct scsi_sense_hdr sshdr;
int sense_valid = 0;
int sense_deferred = 0;
int info_valid;
if (result) {
sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr);
@ -963,36 +1044,7 @@ static int sd_done(struct scsi_cmnd *SCpnt)
switch (sshdr.sense_key) {
case HARDWARE_ERROR:
case MEDIUM_ERROR:
if (!blk_fs_request(SCpnt->request))
goto out;
info_valid = scsi_get_sense_info_fld(SCpnt->sense_buffer,
SCSI_SENSE_BUFFERSIZE,
&bad_lba);
if (!info_valid)
goto out;
if (xfer_size <= SCpnt->device->sector_size)
goto out;
if (SCpnt->device->sector_size < 512) {
/* only legitimate sector_size here is 256 */
start_lba <<= 1;
end_lba <<= 1;
} else {
/* be careful ... don't want any overflows */
u64 factor = SCpnt->device->sector_size / 512;
do_div(start_lba, factor);
do_div(end_lba, factor);
}
if (bad_lba < start_lba || bad_lba >= end_lba)
/* the bad lba was reported incorrectly, we have
* no idea where the error is
*/
goto out;
/* This computation should always be done in terms of
* the resolution of the device's medium.
*/
good_bytes = (bad_lba - start_lba)*SCpnt->device->sector_size;
good_bytes = sd_completed_bytes(SCpnt);
break;
case RECOVERED_ERROR:
case NO_SENSE:
@ -1002,10 +1054,23 @@ static int sd_done(struct scsi_cmnd *SCpnt)
scsi_print_sense("sd", SCpnt);
SCpnt->result = 0;
memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
good_bytes = xfer_size;
good_bytes = scsi_bufflen(SCpnt);
break;
case ABORTED_COMMAND:
if (sshdr.asc == 0x10) { /* DIF: Disk detected corruption */
scsi_print_result(SCpnt);
scsi_print_sense("sd", SCpnt);
good_bytes = sd_completed_bytes(SCpnt);
}
break;
case ILLEGAL_REQUEST:
if (SCpnt->device->use_10_for_rw &&
if (sshdr.asc == 0x10) { /* DIX: HBA detected corruption */
scsi_print_result(SCpnt);
scsi_print_sense("sd", SCpnt);
good_bytes = sd_completed_bytes(SCpnt);
}
if (!scsi_device_protection(SCpnt->device) &&
SCpnt->device->use_10_for_rw &&
(SCpnt->cmnd[0] == READ_10 ||
SCpnt->cmnd[0] == WRITE_10))
SCpnt->device->use_10_for_rw = 0;
@ -1018,6 +1083,9 @@ static int sd_done(struct scsi_cmnd *SCpnt)
break;
}
out:
if (rq_data_dir(SCpnt->request) == READ && scsi_prot_sg_count(SCpnt))
sd_dif_complete(SCpnt, good_bytes);
return good_bytes;
}
@ -1165,6 +1233,49 @@ sd_spinup_disk(struct scsi_disk *sdkp)
}
}
/*
* Determine whether disk supports Data Integrity Field.
*/
void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
{
struct scsi_device *sdp = sdkp->device;
u8 type;
if (scsi_device_protection(sdp) == 0 || (buffer[12] & 1) == 0)
type = 0;
else
type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */
switch (type) {
case SD_DIF_TYPE0_PROTECTION:
sdkp->protection_type = 0;
break;
case SD_DIF_TYPE1_PROTECTION:
case SD_DIF_TYPE3_PROTECTION:
sdkp->protection_type = type;
break;
case SD_DIF_TYPE2_PROTECTION:
sd_printk(KERN_ERR, sdkp, "formatted with DIF Type 2 " \
"protection which is currently unsupported. " \
"Disabling disk!\n");
goto disable;
default:
sd_printk(KERN_ERR, sdkp, "formatted with unknown " \
"protection type %d. Disabling disk!\n", type);
goto disable;
}
return;
disable:
sdkp->protection_type = 0;
sdkp->capacity = 0;
}
/*
* read disk capacity
*/
@ -1174,7 +1285,8 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
unsigned char cmd[16];
int the_result, retries;
int sector_size = 0;
int longrc = 0;
/* Force READ CAPACITY(16) when PROTECT=1 */
int longrc = scsi_device_protection(sdkp->device) ? 1 : 0;
struct scsi_sense_hdr sshdr;
int sense_valid = 0;
struct scsi_device *sdp = sdkp->device;
@ -1186,8 +1298,8 @@ repeat:
memset((void *) cmd, 0, 16);
cmd[0] = SERVICE_ACTION_IN;
cmd[1] = SAI_READ_CAPACITY_16;
cmd[13] = 12;
memset((void *) buffer, 0, 12);
cmd[13] = 13;
memset((void *) buffer, 0, 13);
} else {
cmd[0] = READ_CAPACITY;
memset((void *) &cmd[1], 0, 9);
@ -1195,7 +1307,7 @@ repeat:
}
the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
buffer, longrc ? 12 : 8, &sshdr,
buffer, longrc ? 13 : 8, &sshdr,
SD_TIMEOUT, SD_MAX_RETRIES);
if (media_not_present(sdkp, &sshdr))
@ -1270,6 +1382,8 @@ repeat:
sector_size = (buffer[8] << 24) |
(buffer[9] << 16) | (buffer[10] << 8) | buffer[11];
sd_read_protection_type(sdkp, buffer);
}
/* Some devices return the total number of sectors, not the
@ -1531,6 +1645,52 @@ defaults:
sdkp->DPOFUA = 0;
}
/*
* The ATO bit indicates whether the DIF application tag is available
* for use by the operating system.
*/
void sd_read_app_tag_own(struct scsi_disk *sdkp, unsigned char *buffer)
{
int res, offset;
struct scsi_device *sdp = sdkp->device;
struct scsi_mode_data data;
struct scsi_sense_hdr sshdr;
if (sdp->type != TYPE_DISK)
return;
if (sdkp->protection_type == 0)
return;
res = scsi_mode_sense(sdp, 1, 0x0a, buffer, 36, SD_TIMEOUT,
SD_MAX_RETRIES, &data, &sshdr);
if (!scsi_status_is_good(res) || !data.header_length ||
data.length < 6) {
sd_printk(KERN_WARNING, sdkp,
"getting Control mode page failed, assume no ATO\n");
if (scsi_sense_valid(&sshdr))
sd_print_sense_hdr(sdkp, &sshdr);
return;
}
offset = data.header_length + data.block_descriptor_length;
if ((buffer[offset] & 0x3f) != 0x0a) {
sd_printk(KERN_ERR, sdkp, "ATO Got wrong page\n");
return;
}
if ((buffer[offset + 5] & 0x80) == 0)
return;
sdkp->ATO = 1;
return;
}
/**
* sd_revalidate_disk - called the first time a new disk is seen,
* performs disk spin up, read_capacity, etc.
@ -1567,6 +1727,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
sdkp->write_prot = 0;
sdkp->WCE = 0;
sdkp->RCD = 0;
sdkp->ATO = 0;
sd_spinup_disk(sdkp);
@ -1578,6 +1739,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
sd_read_capacity(sdkp, buffer);
sd_read_write_protect_flag(sdkp, buffer);
sd_read_cache_type(sdkp, buffer);
sd_read_app_tag_own(sdkp, buffer);
}
/*
@ -1643,18 +1805,20 @@ static int sd_probe(struct device *dev)
if (!gd)
goto out_free;
if (!idr_pre_get(&sd_index_idr, GFP_KERNEL))
goto out_put;
do {
if (!ida_pre_get(&sd_index_ida, GFP_KERNEL))
goto out_put;
spin_lock(&sd_index_lock);
error = idr_get_new(&sd_index_idr, NULL, &index);
spin_unlock(&sd_index_lock);
error = ida_get_new(&sd_index_ida, &index);
} while (error == -EAGAIN);
if (index >= SD_MAX_DISKS)
error = -EBUSY;
if (error)
goto out_put;
error = -EBUSY;
if (index >= SD_MAX_DISKS)
goto out_free_index;
sdkp->device = sdp;
sdkp->driver = &sd_template;
sdkp->disk = gd;
@ -1675,7 +1839,7 @@ static int sd_probe(struct device *dev)
strncpy(sdkp->dev.bus_id, sdp->sdev_gendev.bus_id, BUS_ID_SIZE);
if (device_add(&sdkp->dev))
goto out_put;
goto out_free_index;
get_device(&sdp->sdev_gendev);
@ -1711,12 +1875,15 @@ static int sd_probe(struct device *dev)
dev_set_drvdata(dev, sdkp);
add_disk(gd);
sd_dif_config_host(sdkp);
sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
sdp->removable ? "removable " : "");
return 0;
out_free_index:
ida_remove(&sd_index_ida, index);
out_put:
put_disk(gd);
out_free:
@ -1766,9 +1933,7 @@ static void scsi_disk_release(struct device *dev)
struct scsi_disk *sdkp = to_scsi_disk(dev);
struct gendisk *disk = sdkp->disk;
spin_lock(&sd_index_lock);
idr_remove(&sd_index_idr, sdkp->index);
spin_unlock(&sd_index_lock);
ida_remove(&sd_index_ida, sdkp->index);
disk->private_data = NULL;
put_disk(disk);

54
drivers/scsi/sd.h
View File

@ -31,6 +31,12 @@
*/
#define SD_BUF_SIZE 512
/*
* Number of sectors at the end of the device to avoid multi-sector
* accesses to in the case of last_sector_bug
*/
#define SD_LAST_BUGGY_SECTORS 8
struct scsi_disk {
struct scsi_driver *driver; /* always &sd_template */
struct scsi_device *device;
@ -41,7 +47,9 @@ struct scsi_disk {
u32 index;
u8 media_present;
u8 write_prot;
u8 protection_type;/* Data Integrity Field */
unsigned previous_state : 1;
unsigned ATO : 1; /* state of disk ATO bit */
unsigned WCE : 1; /* state of disk WCE bit */
unsigned RCD : 1; /* state of disk RCD bit, unused */
unsigned DPOFUA : 1; /* state of disk DPOFUA bit */
@ -59,4 +67,50 @@ static inline struct scsi_disk *scsi_disk(struct gendisk *disk)
(sdsk)->disk->disk_name, ##a) : \
sdev_printk(prefix, (sdsk)->device, fmt, ##a)
/*
* A DIF-capable target device can be formatted with different
* protection schemes. Currently 0 through 3 are defined:
*
* Type 0 is regular (unprotected) I/O
*
* Type 1 defines the contents of the guard and reference tags
*
* Type 2 defines the contents of the guard and reference tags and
* uses 32-byte commands to seed the latter
*
* Type 3 defines the contents of the guard tag only
*/
enum sd_dif_target_protection_types {
SD_DIF_TYPE0_PROTECTION = 0x0,
SD_DIF_TYPE1_PROTECTION = 0x1,
SD_DIF_TYPE2_PROTECTION = 0x2,
SD_DIF_TYPE3_PROTECTION = 0x3,
};
/*
* Data Integrity Field tuple.
*/
struct sd_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
#if defined(CONFIG_BLK_DEV_INTEGRITY)
extern void sd_dif_op(struct scsi_cmnd *, unsigned int, unsigned int);
extern void sd_dif_config_host(struct scsi_disk *);
extern int sd_dif_prepare(struct request *rq, sector_t, unsigned int);
extern void sd_dif_complete(struct scsi_cmnd *, unsigned int);
#else /* CONFIG_BLK_DEV_INTEGRITY */
#define sd_dif_op(a, b, c) do { } while (0)
#define sd_dif_config_host(a) do { } while (0)
#define sd_dif_prepare(a, b, c) (0)
#define sd_dif_complete(a, b) (0)
#endif /* CONFIG_BLK_DEV_INTEGRITY */
#endif /* _SCSI_DISK_H */

538
drivers/scsi/sd_dif.c Normal file
View File

@ -0,0 +1,538 @@
/*
* sd_dif.c - SCSI Data Integrity Field
*
* Copyright (C) 2007, 2008 Oracle Corporation
* Written by: Martin K. Petersen <martin.petersen@oracle.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
* USA.
*
*/
#include <linux/blkdev.h>
#include <linux/crc-t10dif.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_dbg.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_driver.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/scsicam.h>
#include <net/checksum.h>
#include "sd.h"
typedef __u16 (csum_fn) (void *, unsigned int);
static __u16 sd_dif_crc_fn(void *data, unsigned int len)
{
return cpu_to_be16(crc_t10dif(data, len));
}
static __u16 sd_dif_ip_fn(void *data, unsigned int len)
{
return ip_compute_csum(data, len);
}
/*
* Type 1 and Type 2 protection use the same format: 16 bit guard tag,
* 16 bit app tag, 32 bit reference tag.
*/
static void sd_dif_type1_generate(struct blk_integrity_exchg *bix, csum_fn *fn)
{
void *buf = bix->data_buf;
struct sd_dif_tuple *sdt = bix->prot_buf;
sector_t sector = bix->sector;
unsigned int i;
for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) {
sdt->guard_tag = fn(buf, bix->sector_size);
sdt->ref_tag = cpu_to_be32(sector & 0xffffffff);
sdt->app_tag = 0;
buf += bix->sector_size;
sector++;
}
}
static void sd_dif_type1_generate_crc(struct blk_integrity_exchg *bix)
{
sd_dif_type1_generate(bix, sd_dif_crc_fn);
}
static void sd_dif_type1_generate_ip(struct blk_integrity_exchg *bix)
{
sd_dif_type1_generate(bix, sd_dif_ip_fn);
}
static int sd_dif_type1_verify(struct blk_integrity_exchg *bix, csum_fn *fn)
{
void *buf = bix->data_buf;
struct sd_dif_tuple *sdt = bix->prot_buf;
sector_t sector = bix->sector;
unsigned int i;
__u16 csum;
for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) {
/* Unwritten sectors */
if (sdt->app_tag == 0xffff)
return 0;
/* Bad ref tag received from disk */
if (sdt->ref_tag == 0xffffffff) {
printk(KERN_ERR
"%s: bad phys ref tag on sector %lu\n",
bix->disk_name, (unsigned long)sector);
return -EIO;
}
if (be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) {
printk(KERN_ERR
"%s: ref tag error on sector %lu (rcvd %u)\n",
bix->disk_name, (unsigned long)sector,
be32_to_cpu(sdt->ref_tag));
return -EIO;
}
csum = fn(buf, bix->sector_size);
if (sdt->guard_tag != csum) {
printk(KERN_ERR "%s: guard tag error on sector %lu " \
"(rcvd %04x, data %04x)\n", bix->disk_name,
(unsigned long)sector,
be16_to_cpu(sdt->guard_tag), be16_to_cpu(csum));
return -EIO;
}
buf += bix->sector_size;
sector++;
}
return 0;
}
static int sd_dif_type1_verify_crc(struct blk_integrity_exchg *bix)
{
return sd_dif_type1_verify(bix, sd_dif_crc_fn);
}
static int sd_dif_type1_verify_ip(struct blk_integrity_exchg *bix)
{
return sd_dif_type1_verify(bix, sd_dif_ip_fn);
}
/*
* Functions for interleaving and deinterleaving application tags
*/
static void sd_dif_type1_set_tag(void *prot, void *tag_buf, unsigned int sectors)
{
struct sd_dif_tuple *sdt = prot;
char *tag = tag_buf;
unsigned int i, j;
for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) {
sdt->app_tag = tag[j] << 8 | tag[j+1];
BUG_ON(sdt->app_tag == 0xffff);
}
}
static void sd_dif_type1_get_tag(void *prot, void *tag_buf, unsigned int sectors)
{
struct sd_dif_tuple *sdt = prot;
char *tag = tag_buf;
unsigned int i, j;
for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) {
tag[j] = (sdt->app_tag & 0xff00) >> 8;
tag[j+1] = sdt->app_tag & 0xff;
}
}
static struct blk_integrity dif_type1_integrity_crc = {
.name = "T10-DIF-TYPE1-CRC",
.generate_fn = sd_dif_type1_generate_crc,
.verify_fn = sd_dif_type1_verify_crc,
.get_tag_fn = sd_dif_type1_get_tag,
.set_tag_fn = sd_dif_type1_set_tag,
.tuple_size = sizeof(struct sd_dif_tuple),
.tag_size = 0,
};
static struct blk_integrity dif_type1_integrity_ip = {
.name = "T10-DIF-TYPE1-IP",
.generate_fn = sd_dif_type1_generate_ip,
.verify_fn = sd_dif_type1_verify_ip,
.get_tag_fn = sd_dif_type1_get_tag,
.set_tag_fn = sd_dif_type1_set_tag,
.tuple_size = sizeof(struct sd_dif_tuple),
.tag_size = 0,
};
/*
* Type 3 protection has a 16-bit guard tag and 16 + 32 bits of opaque
* tag space.
*/
static void sd_dif_type3_generate(struct blk_integrity_exchg *bix, csum_fn *fn)
{
void *buf = bix->data_buf;
struct sd_dif_tuple *sdt = bix->prot_buf;
unsigned int i;
for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) {
sdt->guard_tag = fn(buf, bix->sector_size);
sdt->ref_tag = 0;
sdt->app_tag = 0;
buf += bix->sector_size;
}
}
static void sd_dif_type3_generate_crc(struct blk_integrity_exchg *bix)
{
sd_dif_type3_generate(bix, sd_dif_crc_fn);
}
static void sd_dif_type3_generate_ip(struct blk_integrity_exchg *bix)
{
sd_dif_type3_generate(bix, sd_dif_ip_fn);
}
static int sd_dif_type3_verify(struct blk_integrity_exchg *bix, csum_fn *fn)
{
void *buf = bix->data_buf;
struct sd_dif_tuple *sdt = bix->prot_buf;
sector_t sector = bix->sector;
unsigned int i;
__u16 csum;
for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) {
/* Unwritten sectors */
if (sdt->app_tag == 0xffff && sdt->ref_tag == 0xffffffff)
return 0;
csum = fn(buf, bix->sector_size);
if (sdt->guard_tag != csum) {
printk(KERN_ERR "%s: guard tag error on sector %lu " \
"(rcvd %04x, data %04x)\n", bix->disk_name,
(unsigned long)sector,
be16_to_cpu(sdt->guard_tag), be16_to_cpu(csum));
return -EIO;
}
buf += bix->sector_size;
sector++;
}
return 0;
}
static int sd_dif_type3_verify_crc(struct blk_integrity_exchg *bix)
{
return sd_dif_type3_verify(bix, sd_dif_crc_fn);
}
static int sd_dif_type3_verify_ip(struct blk_integrity_exchg *bix)
{
return sd_dif_type3_verify(bix, sd_dif_ip_fn);
}
static void sd_dif_type3_set_tag(void *prot, void *tag_buf, unsigned int sectors)
{
struct sd_dif_tuple *sdt = prot;
char *tag = tag_buf;
unsigned int i, j;
for (i = 0, j = 0 ; i < sectors ; i++, j += 6, sdt++) {
sdt->app_tag = tag[j] << 8 | tag[j+1];
sdt->ref_tag = tag[j+2] << 24 | tag[j+3] << 16 |
tag[j+4] << 8 | tag[j+5];
}
}
static void sd_dif_type3_get_tag(void *prot, void *tag_buf, unsigned int sectors)
{
struct sd_dif_tuple *sdt = prot;
char *tag = tag_buf;
unsigned int i, j;
for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) {
tag[j] = (sdt->app_tag & 0xff00) >> 8;
tag[j+1] = sdt->app_tag & 0xff;
tag[j+2] = (sdt->ref_tag & 0xff000000) >> 24;
tag[j+3] = (sdt->ref_tag & 0xff0000) >> 16;
tag[j+4] = (sdt->ref_tag & 0xff00) >> 8;
tag[j+5] = sdt->ref_tag & 0xff;
BUG_ON(sdt->app_tag == 0xffff || sdt->ref_tag == 0xffffffff);
}
}
static struct blk_integrity dif_type3_integrity_crc = {
.name = "T10-DIF-TYPE3-CRC",
.generate_fn = sd_dif_type3_generate_crc,
.verify_fn = sd_dif_type3_verify_crc,
.get_tag_fn = sd_dif_type3_get_tag,
.set_tag_fn = sd_dif_type3_set_tag,
.tuple_size = sizeof(struct sd_dif_tuple),
.tag_size = 0,
};
static struct blk_integrity dif_type3_integrity_ip = {
.name = "T10-DIF-TYPE3-IP",
.generate_fn = sd_dif_type3_generate_ip,
.verify_fn = sd_dif_type3_verify_ip,
.get_tag_fn = sd_dif_type3_get_tag,
.set_tag_fn = sd_dif_type3_set_tag,
.tuple_size = sizeof(struct sd_dif_tuple),
.tag_size = 0,
};
/*
* Configure exchange of protection information between OS and HBA.
*/
void sd_dif_config_host(struct scsi_disk *sdkp)
{
struct scsi_device *sdp = sdkp->device;
struct gendisk *disk = sdkp->disk;
u8 type = sdkp->protection_type;
/* If this HBA doesn't support DIX, resort to normal I/O or DIF */
if (scsi_host_dix_capable(sdp->host, type) == 0) {
if (type == SD_DIF_TYPE0_PROTECTION)
return;
if (scsi_host_dif_capable(sdp->host, type) == 0) {
sd_printk(KERN_INFO, sdkp, "Type %d protection " \
"unsupported by HBA. Disabling DIF.\n", type);
sdkp->protection_type = 0;
return;
}
sd_printk(KERN_INFO, sdkp, "Enabling DIF Type %d protection\n",
type);
return;
}
/* Enable DMA of protection information */
if (scsi_host_get_guard(sdkp->device->host) & SHOST_DIX_GUARD_IP)
if (type == SD_DIF_TYPE3_PROTECTION)
blk_integrity_register(disk, &dif_type3_integrity_ip);
else
blk_integrity_register(disk, &dif_type1_integrity_ip);
else
if (type == SD_DIF_TYPE3_PROTECTION)
blk_integrity_register(disk, &dif_type3_integrity_crc);
else
blk_integrity_register(disk, &dif_type1_integrity_crc);
sd_printk(KERN_INFO, sdkp,
"Enabling %s integrity protection\n", disk->integrity->name);
/* Signal to block layer that we support sector tagging */
if (type && sdkp->ATO) {
if (type == SD_DIF_TYPE3_PROTECTION)
disk->integrity->tag_size = sizeof(u16) + sizeof(u32);
else
disk->integrity->tag_size = sizeof(u16);
sd_printk(KERN_INFO, sdkp, "DIF application tag size %u\n",
disk->integrity->tag_size);
}
}
/*
* DIF DMA operation magic decoder ring.
*/
void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix)
{
int csum_convert, prot_op;
prot_op = 0;
/* Convert checksum? */
if (scsi_host_get_guard(scmd->device->host) != SHOST_DIX_GUARD_CRC)
csum_convert = 1;
else
csum_convert = 0;
switch (scmd->cmnd[0]) {
case READ_10:
case READ_12:
case READ_16:
if (dif && dix)
if (csum_convert)
prot_op = SCSI_PROT_READ_CONVERT;
else
prot_op = SCSI_PROT_READ_PASS;
else if (dif && !dix)
prot_op = SCSI_PROT_READ_STRIP;
else if (!dif && dix)
prot_op = SCSI_PROT_READ_INSERT;
break;
case WRITE_10:
case WRITE_12:
case WRITE_16:
if (dif && dix)
if (csum_convert)
prot_op = SCSI_PROT_WRITE_CONVERT;
else
prot_op = SCSI_PROT_WRITE_PASS;
else if (dif && !dix)
prot_op = SCSI_PROT_WRITE_INSERT;
else if (!dif && dix)
prot_op = SCSI_PROT_WRITE_STRIP;
break;
}
scsi_set_prot_op(scmd, prot_op);
scsi_set_prot_type(scmd, dif);
}
/*
* The virtual start sector is the one that was originally submitted
* by the block layer. Due to partitioning, MD/DM cloning, etc. the
* actual physical start sector is likely to be different. Remap
* protection information to match the physical LBA.
*
* From a protocol perspective there's a slight difference between
* Type 1 and 2. The latter uses 32-byte CDBs exclusively, and the
* reference tag is seeded in the CDB. This gives us the potential to
* avoid virt->phys remapping during write. However, at read time we
* don't know whether the virt sector is the same as when we wrote it
* (we could be reading from real disk as opposed to MD/DM device. So
* we always remap Type 2 making it identical to Type 1.
*
* Type 3 does not have a reference tag so no remapping is required.
*/
int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_sz)
{
const int tuple_sz = sizeof(struct sd_dif_tuple);
struct bio *bio;
struct scsi_disk *sdkp;
struct sd_dif_tuple *sdt;
unsigned int i, j;
u32 phys, virt;
/* Already remapped? */
if (rq->cmd_flags & REQ_INTEGRITY)
return 0;
sdkp = rq->bio->bi_bdev->bd_disk->private_data;
if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION)
return 0;
rq->cmd_flags |= REQ_INTEGRITY;
phys = hw_sector & 0xffffffff;
__rq_for_each_bio(bio, rq) {
struct bio_vec *iv;
virt = bio->bi_integrity->bip_sector & 0xffffffff;
bip_for_each_vec(iv, bio->bi_integrity, i) {
sdt = kmap_atomic(iv->bv_page, KM_USER0)
+ iv->bv_offset;
for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
if (be32_to_cpu(sdt->ref_tag) != virt)
goto error;
sdt->ref_tag = cpu_to_be32(phys);
virt++;
phys++;
}
kunmap_atomic(sdt, KM_USER0);
}
}
return 0;
error:
kunmap_atomic(sdt, KM_USER0);
sd_printk(KERN_ERR, sdkp, "%s: virt %u, phys %u, ref %u\n",
__func__, virt, phys, be32_to_cpu(sdt->ref_tag));
return -EIO;
}
/*
* Remap physical sector values in the reference tag to the virtual
* values expected by the block layer.
*/
void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes)
{
const int tuple_sz = sizeof(struct sd_dif_tuple);
struct scsi_disk *sdkp;
struct bio *bio;
struct sd_dif_tuple *sdt;
unsigned int i, j, sectors, sector_sz;
u32 phys, virt;
sdkp = scsi_disk(scmd->request->rq_disk);
if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION || good_bytes == 0)
return;
sector_sz = scmd->device->sector_size;
sectors = good_bytes / sector_sz;
phys = scmd->request->sector & 0xffffffff;
if (sector_sz == 4096)
phys >>= 3;
__rq_for_each_bio(bio, scmd->request) {
struct bio_vec *iv;
virt = bio->bi_integrity->bip_sector & 0xffffffff;
bip_for_each_vec(iv, bio->bi_integrity, i) {
sdt = kmap_atomic(iv->bv_page, KM_USER0)
+ iv->bv_offset;
for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
if (sectors == 0) {
kunmap_atomic(sdt, KM_USER0);
return;
}
if (be32_to_cpu(sdt->ref_tag) != phys &&
sdt->app_tag != 0xffff)
sdt->ref_tag = 0xffffffff; /* Bad ref */
else
sdt->ref_tag = cpu_to_be32(virt);
virt++;
phys++;
sectors--;
}
kunmap_atomic(sdt, KM_USER0);
}
}
}

11
drivers/scsi/st.c
View File

@ -17,7 +17,7 @@
Last modified: 18-JAN-1998 Richard Gooch <rgooch@atnf.csiro.au> Devfs support
*/
static const char *verstr = "20080224";
static const char *verstr = "20080504";
#include <linux/module.h>
@ -631,7 +631,7 @@ static int cross_eof(struct scsi_tape * STp, int forward)
/* Flush the write buffer (never need to write if variable blocksize). */
static int st_flush_write_buffer(struct scsi_tape * STp)
{
int offset, transfer, blks;
int transfer, blks;
int result;
unsigned char cmd[MAX_COMMAND_SIZE];
struct st_request *SRpnt;
@ -644,14 +644,10 @@ static int st_flush_write_buffer(struct scsi_tape * STp)
result = 0;
if (STp->dirty == 1) {
offset = (STp->buffer)->buffer_bytes;
transfer = ((offset + STp->block_size - 1) /
STp->block_size) * STp->block_size;
transfer = STp->buffer->buffer_bytes;
DEBC(printk(ST_DEB_MSG "%s: Flushing %d bytes.\n",
tape_name(STp), transfer));
memset((STp->buffer)->b_data + offset, 0, transfer - offset);
memset(cmd, 0, MAX_COMMAND_SIZE);
cmd[0] = WRITE_6;
cmd[1] = 1;
@ -1670,6 +1666,7 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
if (undone <= do_count) {
/* Only data from this write is not written */
count += undone;
b_point -= undone;
do_count -= undone;
if (STp->block_size)
blks = (transfer - undone) / STp->block_size;

2
drivers/scsi/stex.c
View File

@ -467,7 +467,7 @@ stex_slave_alloc(struct scsi_device *sdev)
/* Cheat: usually extracted from Inquiry data */
sdev->tagged_supported = 1;
scsi_activate_tcq(sdev, sdev->host->can_queue);
scsi_activate_tcq(sdev, ST_CMD_PER_LUN);
return 0;
}

2
drivers/scsi/sym53c8xx_2/sym_hipd.c
View File

@ -5741,6 +5741,8 @@ void sym_hcb_free(struct sym_hcb *np)
for (target = 0; target < SYM_CONF_MAX_TARGET ; target++) {
tp = &np->target[target];
if (tp->luntbl)
sym_mfree_dma(tp->luntbl, 256, "LUNTBL");
#if SYM_CONF_MAX_LUN > 1
kfree(tp->lunmp);
#endif

8
drivers/scsi/tmscsim.c
View File

@ -452,7 +452,7 @@ static int dc390_pci_map (struct dc390_srb* pSRB)
/* TODO: error handling */
if (pSRB->SGcount != 1)
error = 1;
DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle));
DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle));
/* Map SG list */
} else if (scsi_sg_count(pcmd)) {
int nseg;
@ -466,7 +466,7 @@ static int dc390_pci_map (struct dc390_srb* pSRB)
if (nseg < 0)
error = 1;
DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\
__FUNCTION__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd)));
__func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd)));
/* Map single segment */
} else
pSRB->SGcount = 0;
@ -483,11 +483,11 @@ static void dc390_pci_unmap (struct dc390_srb* pSRB)
if (pSRB->SRBFlag) {
pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE);
DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle));
} else {
scsi_dma_unmap(pcmd);
DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n",
__FUNCTION__, scsi_sglist(pcmd), scsi_sg_count(pcmd)));
__func__, scsi_sglist(pcmd), scsi_sg_count(pcmd)));
}
}

8
drivers/scsi/wd7000.c
View File

@ -148,7 +148,7 @@
*
* 2002/10/04 - Alan Cox <alan@redhat.com>
*
* Use dev_id for interrupts, kill __FUNCTION__ pasting
* Use dev_id for interrupts, kill __func__ pasting
* Add a lock for the scb pool, clean up all other cli/sti usage stuff
* Use the adapter lock for the other places we had the cli's
*
@ -640,12 +640,12 @@ static int __init wd7000_setup(char *str)
(void) get_options(str, ARRAY_SIZE(ints), ints);
if (wd7000_card_num >= NUM_CONFIGS) {
printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __FUNCTION__);
printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __func__);
return 0;
}
if ((ints[0] < 3) || (ints[0] > 5)) {
printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=<IRQ>,<DMA>,IO>[,<BUS_ON>" "[,<BUS_OFF>]]\n", __FUNCTION__);
printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=<IRQ>,<DMA>,IO>[,<BUS_ON>" "[,<BUS_OFF>]]\n", __func__);
} else {
for (i = 0; i < NUM_IRQS; i++)
if (ints[1] == wd7000_irq[i])
@ -1642,7 +1642,7 @@ static int wd7000_biosparam(struct scsi_device *sdev,
ip[2] = info[2];
if (info[0] == 255)
printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __FUNCTION__);
printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __func__);
}
}

8
drivers/scsi/zalon.c
View File

@ -68,11 +68,11 @@ lasi_scsi_clock(void * hpa, int defaultclock)
if (status == PDC_RET_OK) {
clock = (int) pdc_result[16];
} else {
printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __FUNCTION__, status);
printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __func__, status);
clock = defaultclock;
}
printk(KERN_DEBUG "%s: SCSI clock %d\n", __FUNCTION__, clock);
printk(KERN_DEBUG "%s: SCSI clock %d\n", __func__, clock);
return clock;
}
#endif
@ -108,13 +108,13 @@ zalon_probe(struct parisc_device *dev)
*/
dev->irq = gsc_alloc_irq(&gsc_irq);
printk(KERN_INFO "%s: Zalon version %d, IRQ %d\n", __FUNCTION__,
printk(KERN_INFO "%s: Zalon version %d, IRQ %d\n", __func__,
zalon_vers, dev->irq);
__raw_writel(gsc_irq.txn_addr | gsc_irq.txn_data, zalon + IO_MODULE_EIM);
if (zalon_vers == 0)
printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __FUNCTION__);
printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __func__);
memset(&device, 0, sizeof(struct ncr_device));

3
include/scsi/scsi.h
View File

@ -106,6 +106,7 @@
#define VARIABLE_LENGTH_CMD 0x7f
#define REPORT_LUNS 0xa0
#define MAINTENANCE_IN 0xa3
#define MAINTENANCE_OUT 0xa4
#define MOVE_MEDIUM 0xa5
#define EXCHANGE_MEDIUM 0xa6
#define READ_12 0xa8
@ -125,6 +126,8 @@
#define SAI_READ_CAPACITY_16 0x10
/* values for maintenance in */
#define MI_REPORT_TARGET_PGS 0x0a
/* values for maintenance out */
#define MO_SET_TARGET_PGS 0x0a
/* Values for T10/04-262r7 */
#define ATA_16 0x85 /* 16-byte pass-thru */

86
include/scsi/scsi_cmnd.h
View File

@ -77,6 +77,9 @@ struct scsi_cmnd {
int allowed;
int timeout_per_command;
unsigned char prot_op;
unsigned char prot_type;
unsigned short cmd_len;
enum dma_data_direction sc_data_direction;
@ -87,6 +90,8 @@ struct scsi_cmnd {
/* These elements define the operation we ultimately want to perform */
struct scsi_data_buffer sdb;
struct scsi_data_buffer *prot_sdb;
unsigned underflow; /* Return error if less than
this amount is transferred */
@ -208,4 +213,85 @@ static inline int scsi_sg_copy_to_buffer(struct scsi_cmnd *cmd,
buf, buflen);
}
/*
* The operations below are hints that tell the controller driver how
* to handle I/Os with DIF or similar types of protection information.
*/
enum scsi_prot_operations {
/* Normal I/O */
SCSI_PROT_NORMAL = 0,
/* OS-HBA: Protected, HBA-Target: Unprotected */
SCSI_PROT_READ_INSERT,
SCSI_PROT_WRITE_STRIP,
/* OS-HBA: Unprotected, HBA-Target: Protected */
SCSI_PROT_READ_STRIP,
SCSI_PROT_WRITE_INSERT,
/* OS-HBA: Protected, HBA-Target: Protected */
SCSI_PROT_READ_PASS,
SCSI_PROT_WRITE_PASS,
/* OS-HBA: Protected, HBA-Target: Protected, checksum conversion */
SCSI_PROT_READ_CONVERT,
SCSI_PROT_WRITE_CONVERT,
};
static inline void scsi_set_prot_op(struct scsi_cmnd *scmd, unsigned char op)
{
scmd->prot_op = op;
}
static inline unsigned char scsi_get_prot_op(struct scsi_cmnd *scmd)
{
return scmd->prot_op;
}
/*
* The controller usually does not know anything about the target it
* is communicating with. However, when DIX is enabled the controller
* must be know target type so it can verify the protection
* information passed along with the I/O.
*/
enum scsi_prot_target_type {
SCSI_PROT_DIF_TYPE0 = 0,
SCSI_PROT_DIF_TYPE1,
SCSI_PROT_DIF_TYPE2,
SCSI_PROT_DIF_TYPE3,
};
static inline void scsi_set_prot_type(struct scsi_cmnd *scmd, unsigned char type)
{
scmd->prot_type = type;
}
static inline unsigned char scsi_get_prot_type(struct scsi_cmnd *scmd)
{
return scmd->prot_type;
}
static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
{
return scmd->request->sector;
}
static inline unsigned scsi_prot_sg_count(struct scsi_cmnd *cmd)
{
return cmd->prot_sdb ? cmd->prot_sdb->table.nents : 0;
}
static inline struct scatterlist *scsi_prot_sglist(struct scsi_cmnd *cmd)
{
return cmd->prot_sdb ? cmd->prot_sdb->table.sgl : NULL;
}
static inline struct scsi_data_buffer *scsi_prot(struct scsi_cmnd *cmd)
{
return cmd->prot_sdb;
}
#define scsi_for_each_prot_sg(cmd, sg, nseg, __i) \
for_each_sg(scsi_prot_sglist(cmd), sg, nseg, __i)
#endif /* _SCSI_SCSI_CMND_H */

17
include/scsi/scsi_device.h
View File

@ -140,7 +140,8 @@ struct scsi_device {
unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */
unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */
unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */
unsigned last_sector_bug:1; /* Always read last sector in a 1 sector read */
unsigned last_sector_bug:1; /* do not use multisector accesses on
SD_LAST_BUGGY_SECTORS */
DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
struct list_head event_list; /* asserted events */
@ -167,15 +168,22 @@ struct scsi_device {
unsigned long sdev_data[0];
} __attribute__((aligned(sizeof(unsigned long))));
struct scsi_dh_devlist {
char *vendor;
char *model;
};
struct scsi_device_handler {
/* Used by the infrastructure */
struct list_head list; /* list of scsi_device_handlers */
struct notifier_block nb;
/* Filled by the hardware handler */
struct module *module;
const char *name;
const struct scsi_dh_devlist *devlist;
int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
int (*attach)(struct scsi_device *);
void (*detach)(struct scsi_device *);
int (*activate)(struct scsi_device *);
int (*prep_fn)(struct scsi_device *, struct request *);
};
@ -416,6 +424,11 @@ static inline int scsi_device_enclosure(struct scsi_device *sdev)
return sdev->inquiry[6] & (1<<6);
}
static inline int scsi_device_protection(struct scsi_device *sdev)
{
return sdev->inquiry[5] & (1<<0);
}
#define MODULE_ALIAS_SCSI_DEVICE(type) \
MODULE_ALIAS("scsi:t-" __stringify(type) "*")
#define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x"

11
include/scsi/scsi_dh.h
View File

@ -32,6 +32,7 @@ enum {
*/
SCSI_DH_DEV_FAILED, /* generic device error */
SCSI_DH_DEV_TEMP_BUSY,
SCSI_DH_DEV_UNSUPP, /* device handler not supported */
SCSI_DH_DEVICE_MAX, /* max device blkerr definition */
/*
@ -57,6 +58,8 @@ enum {
#if defined(CONFIG_SCSI_DH) || defined(CONFIG_SCSI_DH_MODULE)
extern int scsi_dh_activate(struct request_queue *);
extern int scsi_dh_handler_exist(const char *);
extern int scsi_dh_attach(struct request_queue *, const char *);
extern void scsi_dh_detach(struct request_queue *);
#else
static inline int scsi_dh_activate(struct request_queue *req)
{
@ -66,4 +69,12 @@ static inline int scsi_dh_handler_exist(const char *name)
{
return 0;
}
static inline int scsi_dh_attach(struct request_queue *req, const char *name)
{
return SCSI_DH_NOSYS;
}
static inline void scsi_dh_detach(struct request_queue *q)
{
return;
}
#endif

2
include/scsi/scsi_eh.h
View File

@ -74,7 +74,9 @@ struct scsi_eh_save {
/* saved state */
int result;
enum dma_data_direction data_direction;
unsigned underflow;
unsigned char cmd_len;
unsigned char prot_op;
unsigned char *cmnd;
struct scsi_data_buffer sdb;
struct request *next_rq;

86
include/scsi/scsi_host.h
View File

@ -547,7 +547,7 @@ struct Scsi_Host {
unsigned int host_failed; /* commands that failed. */
unsigned int host_eh_scheduled; /* EH scheduled without command */
unsigned short host_no; /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
unsigned int host_no; /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
int resetting; /* if set, it means that last_reset is a valid value */
unsigned long last_reset;
@ -636,6 +636,10 @@ struct Scsi_Host {
*/
unsigned int max_host_blocked;
/* Protection Information */
unsigned int prot_capabilities;
unsigned char prot_guard_type;
/*
* q used for scsi_tgt msgs, async events or any other requests that
* need to be processed in userspace
@ -756,6 +760,86 @@ extern struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
extern void scsi_free_host_dev(struct scsi_device *);
extern struct scsi_device *scsi_get_host_dev(struct Scsi_Host *);
/*
* DIF defines the exchange of protection information between
* initiator and SBC block device.
*
* DIX defines the exchange of protection information between OS and
* initiator.
*/
enum scsi_host_prot_capabilities {
SHOST_DIF_TYPE1_PROTECTION = 1 << 0, /* T10 DIF Type 1 */
SHOST_DIF_TYPE2_PROTECTION = 1 << 1, /* T10 DIF Type 2 */
SHOST_DIF_TYPE3_PROTECTION = 1 << 2, /* T10 DIF Type 3 */
SHOST_DIX_TYPE0_PROTECTION = 1 << 3, /* DIX between OS and HBA only */
SHOST_DIX_TYPE1_PROTECTION = 1 << 4, /* DIX with DIF Type 1 */
SHOST_DIX_TYPE2_PROTECTION = 1 << 5, /* DIX with DIF Type 2 */
SHOST_DIX_TYPE3_PROTECTION = 1 << 6, /* DIX with DIF Type 3 */
};
/*
* SCSI hosts which support the Data Integrity Extensions must
* indicate their capabilities by setting the prot_capabilities using
* this call.
*/
static inline void scsi_host_set_prot(struct Scsi_Host *shost, unsigned int mask)
{
shost->prot_capabilities = mask;
}
static inline unsigned int scsi_host_get_prot(struct Scsi_Host *shost)
{
return shost->prot_capabilities;
}
static inline unsigned int scsi_host_dif_capable(struct Scsi_Host *shost, unsigned int target_type)
{
switch (target_type) {
case 1: return shost->prot_capabilities & SHOST_DIF_TYPE1_PROTECTION;
case 2: return shost->prot_capabilities & SHOST_DIF_TYPE2_PROTECTION;
case 3: return shost->prot_capabilities & SHOST_DIF_TYPE3_PROTECTION;
}
return 0;
}
static inline unsigned int scsi_host_dix_capable(struct Scsi_Host *shost, unsigned int target_type)
{
switch (target_type) {
case 0: return shost->prot_capabilities & SHOST_DIX_TYPE0_PROTECTION;
case 1: return shost->prot_capabilities & SHOST_DIX_TYPE1_PROTECTION;
case 2: return shost->prot_capabilities & SHOST_DIX_TYPE2_PROTECTION;
case 3: return shost->prot_capabilities & SHOST_DIX_TYPE3_PROTECTION;
}
return 0;
}
/*
* All DIX-capable initiators must support the T10-mandated CRC
* checksum. Controllers can optionally implement the IP checksum
* scheme which has much lower impact on system performance. Note
* that the main rationale for the checksum is to match integrity
* metadata with data. Detecting bit errors are a job for ECC memory
* and buses.
*/
enum scsi_host_guard_type {
SHOST_DIX_GUARD_CRC = 1 << 0,
SHOST_DIX_GUARD_IP = 1 << 1,
};
static inline void scsi_host_set_guard(struct Scsi_Host *shost, unsigned char type)
{
shost->prot_guard_type = type;
}
static inline unsigned char scsi_host_get_guard(struct Scsi_Host *shost)
{
return shost->prot_guard_type;
}
/* legacy interfaces */
extern struct Scsi_Host *scsi_register(struct scsi_host_template *, int);
extern void scsi_unregister(struct Scsi_Host *);