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Merge branch 'bnx2x-net'

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Yuval Mintz says:

====================
bnx2x: SRIOV bug fixes

This series contains 3 SRIOV bug fixes, 2 of which are regressions starting
with commit 2dc33bbc "bnx2x: Remove the sriov VFOP mechanism".
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-04-26 12:16:18 -04:00
commit c2163260ea
4 changed files with 51 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View File

@ -13233,6 +13233,8 @@ static void __bnx2x_remove(struct pci_dev *pdev,
iounmap(bp->doorbells);
bnx2x_release_firmware(bp);
} else {
bnx2x_vf_pci_dealloc(bp);
}
bnx2x_free_mem_bp(bp);

58
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
View File

@ -427,7 +427,9 @@ static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp,
if (filter->add && filter->type == BNX2X_VF_FILTER_VLAN &&
(atomic_read(&bnx2x_vfq(vf, qid, vlan_count)) >=
vf_vlan_rules_cnt(vf))) {
BNX2X_ERR("No credits for vlan\n");
BNX2X_ERR("No credits for vlan [%d >= %d]\n",
atomic_read(&bnx2x_vfq(vf, qid, vlan_count)),
vf_vlan_rules_cnt(vf));
return -ENOMEM;
}
@ -610,6 +612,7 @@ int bnx2x_vf_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf,
}
/* add new mcasts */
mcast.mcast_list_len = mc_num;
rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_ADD);
if (rc)
BNX2X_ERR("Faled to add multicasts\n");
@ -837,6 +840,29 @@ int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
return 0;
}
static void bnx2x_iov_re_set_vlan_filters(struct bnx2x *bp,
struct bnx2x_virtf *vf,
int new)
{
int num = vf_vlan_rules_cnt(vf);
int diff = new - num;
bool rc = true;
DP(BNX2X_MSG_IOV, "vf[%d] - %d vlan filter credits [previously %d]\n",
vf->abs_vfid, new, num);
if (diff > 0)
rc = bp->vlans_pool.get(&bp->vlans_pool, diff);
else if (diff < 0)
rc = bp->vlans_pool.put(&bp->vlans_pool, -diff);
if (rc)
vf_vlan_rules_cnt(vf) = new;
else
DP(BNX2X_MSG_IOV, "vf[%d] - Failed to configure vlan filter credits change\n",
vf->abs_vfid);
}
/* must be called after the number of PF queues and the number of VFs are
* both known
*/
@ -854,9 +880,11 @@ bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
resc->num_mac_filters = 1;
/* divvy up vlan rules */
bnx2x_iov_re_set_vlan_filters(bp, vf, 0);
vlan_count = bp->vlans_pool.check(&bp->vlans_pool);
vlan_count = 1 << ilog2(vlan_count);
resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp);
bnx2x_iov_re_set_vlan_filters(bp, vf,
vlan_count / BNX2X_NR_VIRTFN(bp));
/* no real limitation */
resc->num_mc_filters = 0;
@ -1478,10 +1506,6 @@ int bnx2x_iov_nic_init(struct bnx2x *bp)
bnx2x_iov_static_resc(bp, vf);
/* queues are initialized during VF-ACQUIRE */
/* reserve the vf vlan credit */
bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf));
vf->filter_state = 0;
vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id);
@ -1912,11 +1936,12 @@ int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf,
u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf);
/* Save a vlan filter for the Hypervisor */
return ((req_resc->num_rxqs <= rxq_cnt) &&
(req_resc->num_txqs <= txq_cnt) &&
(req_resc->num_sbs <= vf_sb_count(vf)) &&
(req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) &&
(req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf)));
(req_resc->num_vlan_filters <= vf_vlan_rules_visible_cnt(vf)));
}
/* CORE VF API */
@ -1972,14 +1997,14 @@ int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf);
if (resc->num_mac_filters)
vf_mac_rules_cnt(vf) = resc->num_mac_filters;
if (resc->num_vlan_filters)
vf_vlan_rules_cnt(vf) = resc->num_vlan_filters;
/* Add an additional vlan filter credit for the hypervisor */
bnx2x_iov_re_set_vlan_filters(bp, vf, resc->num_vlan_filters + 1);
DP(BNX2X_MSG_IOV,
"Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n",
vf_sb_count(vf), vf_rxq_count(vf),
vf_txq_count(vf), vf_mac_rules_cnt(vf),
vf_vlan_rules_cnt(vf));
vf_vlan_rules_visible_cnt(vf));
/* Initialize the queues */
if (!vf->vfqs) {
@ -2896,6 +2921,14 @@ void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
return bp->regview + PXP_VF_ADDR_DB_START;
}
void bnx2x_vf_pci_dealloc(struct bnx2x *bp)
{
BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
sizeof(struct bnx2x_vf_mbx_msg));
BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
sizeof(union pf_vf_bulletin));
}
int bnx2x_vf_pci_alloc(struct bnx2x *bp)
{
mutex_init(&bp->vf2pf_mutex);
@ -2915,10 +2948,7 @@ int bnx2x_vf_pci_alloc(struct bnx2x *bp)
return 0;
alloc_mem_err:
BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
sizeof(struct bnx2x_vf_mbx_msg));
BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
sizeof(union pf_vf_bulletin));
bnx2x_vf_pci_dealloc(bp);
return -ENOMEM;
}

4
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
View File

@ -159,6 +159,8 @@ struct bnx2x_virtf {
#define vf_mac_rules_cnt(vf) ((vf)->alloc_resc.num_mac_filters)
#define vf_vlan_rules_cnt(vf) ((vf)->alloc_resc.num_vlan_filters)
#define vf_mc_rules_cnt(vf) ((vf)->alloc_resc.num_mc_filters)
/* Hide a single vlan filter credit for the hypervisor */
#define vf_vlan_rules_visible_cnt(vf) (vf_vlan_rules_cnt(vf) - 1)
u8 sb_count; /* actual number of SBs */
u8 igu_base_id; /* base igu status block id */
@ -502,6 +504,7 @@ static inline int bnx2x_vf_ustorm_prods_offset(struct bnx2x *bp,
enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);
void bnx2x_timer_sriov(struct bnx2x *bp);
void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp);
void bnx2x_vf_pci_dealloc(struct bnx2x *bp);
int bnx2x_vf_pci_alloc(struct bnx2x *bp);
int bnx2x_enable_sriov(struct bnx2x *bp);
void bnx2x_disable_sriov(struct bnx2x *bp);
@ -568,6 +571,7 @@ static inline void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
return NULL;
}
static inline void bnx2x_vf_pci_dealloc(struct bnx2 *bp) {return 0; }
static inline int bnx2x_vf_pci_alloc(struct bnx2x *bp) {return 0; }
static inline void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) {}
static inline int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs) {return 0; }

2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
View File

@ -1163,7 +1163,7 @@ static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
bnx2x_vf_max_queue_cnt(bp, vf);
resc->num_sbs = vf_sb_count(vf);
resc->num_mac_filters = vf_mac_rules_cnt(vf);
resc->num_vlan_filters = vf_vlan_rules_cnt(vf);
resc->num_vlan_filters = vf_vlan_rules_visible_cnt(vf);
resc->num_mc_filters = 0;
if (status == PFVF_STATUS_SUCCESS) {