diff options
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 43 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 |
2 files changed, 37 insertions, 7 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 2e564026fe96..8f11344b8055 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6364,6 +6364,7 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp) { struct hwrm_func_qcfg_input req = {0}; struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr; + u32 min_db_offset = 0; u16 flags; int rc; @@ -6412,6 +6413,21 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp) if (!bp->max_mtu) bp->max_mtu = BNXT_MAX_MTU; + if (bp->db_size) + goto func_qcfg_exit; + + if (bp->flags & BNXT_FLAG_CHIP_P5) { + if (BNXT_PF(bp)) + min_db_offset = DB_PF_OFFSET_P5; + else + min_db_offset = DB_VF_OFFSET_P5; + } + bp->db_size = PAGE_ALIGN(le16_to_cpu(resp->l2_doorbell_bar_size_kb) * + 1024); + if (!bp->db_size || bp->db_size > pci_resource_len(bp->pdev, 2) || + bp->db_size <= min_db_offset) + bp->db_size = pci_resource_len(bp->pdev, 2); + func_qcfg_exit: mutex_unlock(&bp->hwrm_cmd_lock); return rc; @@ -10898,6 +10914,9 @@ static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) bp->dev = dev; bp->pdev = pdev; + /* Doorbell BAR bp->bar1 is mapped after bnxt_fw_init_one_p2() + * determines the BAR size. + */ bp->bar0 = pci_ioremap_bar(pdev, 0); if (!bp->bar0) { dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); @@ -10905,13 +10924,6 @@ static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) goto init_err_release; } - bp->bar1 = pci_ioremap_bar(pdev, 2); - if (!bp->bar1) { - dev_err(&pdev->dev, "Cannot map doorbell registers, aborting\n"); - rc = -ENOMEM; - goto init_err_release; - } - bp->bar2 = pci_ioremap_bar(pdev, 4); if (!bp->bar2) { dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n"); @@ -11833,6 +11845,16 @@ static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[]) return 0; } +static int bnxt_map_db_bar(struct bnxt *bp) +{ + if (!bp->db_size) + return -ENODEV; + bp->bar1 = pci_iomap(bp->pdev, 2, bp->db_size); + if (!bp->bar1) + return -ENOMEM; + return 0; +} + static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *dev; @@ -11893,6 +11915,13 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto init_err_pci_clean; + rc = bnxt_map_db_bar(bp); + if (rc) { + dev_err(&pdev->dev, "Cannot map doorbell BAR rc = %d, aborting\n", + rc); + goto init_err_pci_clean; + } + dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index a3b80409c25e..6114b0a576ff 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1820,6 +1820,7 @@ struct bnxt { /* ensure atomic 64-bit doorbell writes on 32-bit systems. */ spinlock_t db_lock; #endif + int db_size; #define BNXT_NTP_FLTR_MAX_FLTR 4096 #define BNXT_NTP_FLTR_HASH_SIZE 512 |