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[SCSI] cxgb4i: add support for T5 adapter
Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Karen Xie
James Bottomley
parent
2ee3e26c67
commit
3bd3e8bf62
@ -20,6 +20,7 @@
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#include <net/dst.h>
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#include <linux/netdevice.h>
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#include "t4_regs.h"
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#include "t4_msg.h"
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#include "cxgb4.h"
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#include "cxgb4_uld.h"
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@ -32,13 +33,12 @@ static unsigned int dbg_level;
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#include "../libcxgbi.h"
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#define DRV_MODULE_NAME "cxgb4i"
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#define DRV_MODULE_DESC "Chelsio T4 iSCSI Driver"
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#define DRV_MODULE_VERSION "0.9.1"
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#define DRV_MODULE_RELDATE "Aug. 2010"
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#define DRV_MODULE_DESC "Chelsio T4/T5 iSCSI Driver"
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#define DRV_MODULE_VERSION "0.9.4"
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static char version[] =
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DRV_MODULE_DESC " " DRV_MODULE_NAME
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" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
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" v" DRV_MODULE_VERSION "\n";
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MODULE_AUTHOR("Chelsio Communications, Inc.");
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MODULE_DESCRIPTION(DRV_MODULE_DESC);
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@ -175,10 +175,56 @@ static inline int is_ofld_imm(const struct sk_buff *skb)
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sizeof(struct fw_ofld_tx_data_wr));
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}
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#define VLAN_NONE 0xfff
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#define FILTER_SEL_VLAN_NONE 0xffff
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#define FILTER_SEL_WIDTH_P_FC (3+1) /* port uses 3 bits, FCoE one bit */
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#define FILTER_SEL_WIDTH_VIN_P_FC \
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(6 + 7 + FILTER_SEL_WIDTH_P_FC) /* 6 bits are unused, VF uses 7 bits*/
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#define FILTER_SEL_WIDTH_TAG_P_FC \
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(3 + FILTER_SEL_WIDTH_VIN_P_FC) /* PF uses 3 bits */
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#define FILTER_SEL_WIDTH_VLD_TAG_P_FC (1 + FILTER_SEL_WIDTH_TAG_P_FC)
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static unsigned int select_ntuple(struct cxgbi_device *cdev,
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struct l2t_entry *l2t)
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{
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struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
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unsigned int ntuple = 0;
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u32 viid;
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switch (lldi->filt_mode) {
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/* default filter mode */
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case HW_TPL_FR_MT_PR_IV_P_FC:
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if (l2t->vlan == VLAN_NONE)
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ntuple |= FILTER_SEL_VLAN_NONE << FILTER_SEL_WIDTH_P_FC;
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else {
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ntuple |= l2t->vlan << FILTER_SEL_WIDTH_P_FC;
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ntuple |= 1 << FILTER_SEL_WIDTH_VLD_TAG_P_FC;
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}
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ntuple |= l2t->lport << S_PORT | IPPROTO_TCP <<
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FILTER_SEL_WIDTH_VLD_TAG_P_FC;
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break;
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case HW_TPL_FR_MT_PR_OV_P_FC: {
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viid = cxgb4_port_viid(l2t->neigh->dev);
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ntuple |= FW_VIID_VIN_GET(viid) << FILTER_SEL_WIDTH_P_FC;
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ntuple |= FW_VIID_PFN_GET(viid) << FILTER_SEL_WIDTH_VIN_P_FC;
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ntuple |= FW_VIID_VIVLD_GET(viid) << FILTER_SEL_WIDTH_TAG_P_FC;
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ntuple |= l2t->lport << S_PORT | IPPROTO_TCP <<
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FILTER_SEL_WIDTH_VLD_TAG_P_FC;
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break;
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}
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default:
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break;
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}
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return ntuple;
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}
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static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
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struct l2t_entry *e)
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{
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struct cpl_act_open_req *req;
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struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
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int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
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unsigned long long opt0;
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unsigned int opt2;
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@ -195,29 +241,58 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
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RCV_BUFSIZ(cxgb4i_rcv_win >> 10);
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opt2 = RX_CHANNEL(0) |
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RSS_QUEUE_VALID |
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(1 << 20) | (1 << 22) |
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(1 << 20) |
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RSS_QUEUE(csk->rss_qid);
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set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
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req = (struct cpl_act_open_req *)skb->head;
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if (is_t4(lldi->adapter_type)) {
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struct cpl_act_open_req *req =
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(struct cpl_act_open_req *)skb->head;
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INIT_TP_WR(req, 0);
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OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
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req = (struct cpl_act_open_req *)skb->head;
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INIT_TP_WR(req, 0);
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OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
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qid_atid));
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req->local_port = csk->saddr.sin_port;
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req->peer_port = csk->daddr.sin_port;
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req->local_ip = csk->saddr.sin_addr.s_addr;
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req->peer_ip = csk->daddr.sin_addr.s_addr;
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req->opt0 = cpu_to_be64(opt0);
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req->params = 0;
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req->opt2 = cpu_to_be32(opt2);
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req->local_port = csk->saddr.sin_port;
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req->peer_port = csk->daddr.sin_port;
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req->local_ip = csk->saddr.sin_addr.s_addr;
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req->peer_ip = csk->daddr.sin_addr.s_addr;
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req->opt0 = cpu_to_be64(opt0);
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req->params = cpu_to_be32(select_ntuple(csk->cdev, csk->l2t));
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opt2 |= 1 << 22;
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req->opt2 = cpu_to_be32(opt2);
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log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
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"csk 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
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csk, &req->local_ip, ntohs(req->local_port),
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&req->peer_ip, ntohs(req->peer_port),
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csk->atid, csk->rss_qid);
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log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
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"csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
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csk, &req->local_ip, ntohs(req->local_port),
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&req->peer_ip, ntohs(req->peer_port),
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csk->atid, csk->rss_qid);
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} else {
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struct cpl_t5_act_open_req *req =
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(struct cpl_t5_act_open_req *)skb->head;
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req = (struct cpl_t5_act_open_req *)skb->head;
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INIT_TP_WR(req, 0);
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OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
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qid_atid));
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req->local_port = csk->saddr.sin_port;
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req->peer_port = csk->daddr.sin_port;
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req->local_ip = csk->saddr.sin_addr.s_addr;
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req->peer_ip = csk->daddr.sin_addr.s_addr;
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req->opt0 = cpu_to_be64(opt0);
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req->params = cpu_to_be32(select_ntuple(csk->cdev, csk->l2t));
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opt2 |= 1 << 31;
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req->opt2 = cpu_to_be32(opt2);
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log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
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"csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
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csk, &req->local_ip, ntohs(req->local_port),
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&req->peer_ip, ntohs(req->peer_port),
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csk->atid, csk->rss_qid);
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}
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set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
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cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
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}
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@ -632,6 +707,7 @@ static void csk_act_open_retry_timer(unsigned long data)
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{
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struct sk_buff *skb;
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struct cxgbi_sock *csk = (struct cxgbi_sock *)data;
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struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
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log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
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"csk 0x%p,%u,0x%lx,%u.\n",
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@ -639,7 +715,10 @@ static void csk_act_open_retry_timer(unsigned long data)
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cxgbi_sock_get(csk);
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spin_lock_bh(&csk->lock);
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skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_ATOMIC);
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skb = alloc_wr(is_t4(lldi->adapter_type) ?
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sizeof(struct cpl_act_open_req) :
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sizeof(struct cpl_t5_act_open_req),
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0, GFP_ATOMIC);
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if (!skb)
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cxgbi_sock_fail_act_open(csk, -ENOMEM);
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else {
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@ -871,7 +950,7 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
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if (!csk->skb_ulp_lhdr) {
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unsigned char *bhs;
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unsigned int hlen, dlen;
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unsigned int hlen, dlen, plen;
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log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
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"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n",
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@ -890,11 +969,15 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
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hlen = ntohs(cpl->len);
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dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF;
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if ((hlen + dlen) != ISCSI_PDU_LEN(pdu_len_ddp) - 40) {
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plen = ISCSI_PDU_LEN(pdu_len_ddp);
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if (is_t4(lldi->adapter_type))
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plen -= 40;
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if ((hlen + dlen) != plen) {
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pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len "
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"mismatch %u != %u + %u, seq 0x%x.\n",
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csk->tid, ISCSI_PDU_LEN(pdu_len_ddp) - 40,
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hlen, dlen, cxgbi_skcb_tcp_seq(skb));
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csk->tid, plen, hlen, dlen,
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cxgbi_skcb_tcp_seq(skb));
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goto abort_conn;
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}
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@ -1154,7 +1237,10 @@ static int init_act_open(struct cxgbi_sock *csk)
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}
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cxgbi_sock_get(csk);
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skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_KERNEL);
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skb = alloc_wr(is_t4(lldi->adapter_type) ?
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sizeof(struct cpl_act_open_req) :
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sizeof(struct cpl_t5_act_open_req),
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0, GFP_ATOMIC);
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if (!skb)
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goto rel_resource;
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skb->sk = (struct sock *)csk;
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@ -1193,6 +1279,8 @@ rel_resource:
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return -EINVAL;
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}
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#define CPL_ISCSI_DATA 0xB2
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#define CPL_RX_ISCSI_DDP 0x49
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cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
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[CPL_ACT_ESTABLISH] = do_act_establish,
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[CPL_ACT_OPEN_RPL] = do_act_open_rpl,
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@ -1202,8 +1290,10 @@ cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
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[CPL_CLOSE_CON_RPL] = do_close_con_rpl,
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[CPL_FW4_ACK] = do_fw4_ack,
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[CPL_ISCSI_HDR] = do_rx_iscsi_hdr,
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[CPL_ISCSI_DATA] = do_rx_iscsi_hdr,
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[CPL_SET_TCB_RPL] = do_set_tcb_rpl,
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[CPL_RX_DATA_DDP] = do_rx_data_ddp,
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[CPL_RX_ISCSI_DDP] = do_rx_data_ddp,
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};
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int cxgb4i_ofld_init(struct cxgbi_device *cdev)
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@ -1234,14 +1324,20 @@ int cxgb4i_ofld_init(struct cxgbi_device *cdev)
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* functions to program the pagepod in h/w
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*/
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#define ULPMEM_IDATA_MAX_NPPODS 4 /* 256/PPOD_SIZE */
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static inline void ulp_mem_io_set_hdr(struct ulp_mem_io *req,
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static inline void ulp_mem_io_set_hdr(struct cxgb4_lld_info *lldi,
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struct ulp_mem_io *req,
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unsigned int wr_len, unsigned int dlen,
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unsigned int pm_addr)
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{
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struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1);
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INIT_ULPTX_WR(req, wr_len, 0, 0);
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req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) | (1 << 23));
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if (is_t4(lldi->adapter_type))
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req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) |
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(ULP_MEMIO_ORDER(1)));
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else
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req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) |
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(V_T5_ULP_MEMIO_IMM(1)));
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req->dlen = htonl(ULP_MEMIO_DATA_LEN(dlen >> 5));
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req->lock_addr = htonl(ULP_MEMIO_ADDR(pm_addr >> 5));
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req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16));
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@ -1257,6 +1353,7 @@ static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id,
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unsigned int gl_pidx)
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{
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struct cxgbi_ddp_info *ddp = cdev->ddp;
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struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
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struct sk_buff *skb;
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struct ulp_mem_io *req;
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struct ulptx_idata *idata;
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@ -1276,7 +1373,7 @@ static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id,
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req = (struct ulp_mem_io *)skb->head;
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set_queue(skb, CPL_PRIORITY_CONTROL, NULL);
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ulp_mem_io_set_hdr(req, wr_len, dlen, pm_addr);
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ulp_mem_io_set_hdr(lldi, req, wr_len, dlen, pm_addr);
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idata = (struct ulptx_idata *)(req + 1);
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ppod = (struct cxgbi_pagepod *)(idata + 1);
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