diff options
| -rw-r--r-- | drivers/net/bnx2.c | 24 | ||||
| -rw-r--r-- | drivers/net/bnx2.h | 9 |
2 files changed, 26 insertions, 7 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index deb7f83e8245..d44ecc30865f 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -864,7 +864,7 @@ bnx2_alloc_mem(struct bnx2 *bp) bnapi->hw_rx_cons_ptr = &bnapi->status_blk.msi->status_rx_quick_consumer_index0; if (bp->flags & BNX2_FLAG_MSIX_CAP) { - for (i = 1; i < BNX2_MAX_MSIX_VEC; i++) { + for (i = 1; i < bp->irq_nvecs; i++) { struct status_block_msix *sblk; bnapi = &bp->bnx2_napi[i]; @@ -6152,7 +6152,7 @@ bnx2_free_irq(struct bnx2 *bp) static void bnx2_enable_msix(struct bnx2 *bp, int msix_vecs) { - int i, rc; + int i, total_vecs, rc; struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC]; struct net_device *dev = bp->dev; const int len = sizeof(bp->irq_tbl[0].name); @@ -6171,13 +6171,29 @@ bnx2_enable_msix(struct bnx2 *bp, int msix_vecs) msix_ent[i].vector = 0; } - rc = pci_enable_msix(bp->pdev, msix_ent, BNX2_MAX_MSIX_VEC); + total_vecs = msix_vecs; +#ifdef BCM_CNIC + total_vecs++; +#endif + rc = -ENOSPC; + while (total_vecs >= BNX2_MIN_MSIX_VEC) { + rc = pci_enable_msix(bp->pdev, msix_ent, total_vecs); + if (rc <= 0) + break; + if (rc > 0) + total_vecs = rc; + } + if (rc != 0) return; + msix_vecs = total_vecs; +#ifdef BCM_CNIC + msix_vecs--; +#endif bp->irq_nvecs = msix_vecs; bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI; - for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) { + for (i = 0; i < total_vecs; i++) { bp->irq_tbl[i].vector = msix_ent[i].vector; snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i); bp->irq_tbl[i].handler = bnx2_msi_1shot; diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index b9af6bcef894..2104c1005d02 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -6637,9 +6637,12 @@ struct flash_spec { #define BNX2_MAX_MSIX_HW_VEC 9 #define BNX2_MAX_MSIX_VEC 9 -#define BNX2_BASE_VEC 0 -#define BNX2_TX_VEC 1 -#define BNX2_TX_INT_NUM (BNX2_TX_VEC << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT) +#ifdef BCM_CNIC +#define BNX2_MIN_MSIX_VEC 2 +#else +#define BNX2_MIN_MSIX_VEC 1 +#endif + struct bnx2_irq { irq_handler_t handler; |