Merge branch 'bnxt_en-probe-and-open-bugs'

Michael Chan says:

====================
bnxt_en: Fix probe and open bugs.

Fix 3 issues related to bnxt_init_one() and bnxt_open().  Don't probe
bridge devices and fixup some error code paths.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 43 insertions, 39 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 71f9a1894db9..6dacdf1e4d26 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3134,8 +3134,10 @@ static void bnxt_disable_int(struct bnxt *bp)
         for (i = 0; i < bp->cp_nr_rings; i++) {
                 struct bnxt_napi *bnapi = bp->bnapi[i];
                 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+                struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
 
-                BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
+                if (ring->fw_ring_id != INVALID_HW_RING_ID)
+                        BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
         }
 }
 
@@ -6674,6 +6676,31 @@ int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp)
         return 0;
 }
 
+static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)
+{
+        if (bp->bar2) {
+                pci_iounmap(pdev, bp->bar2);
+                bp->bar2 = NULL;
+        }
+
+        if (bp->bar1) {
+                pci_iounmap(pdev, bp->bar1);
+                bp->bar1 = NULL;
+        }
+
+        if (bp->bar0) {
+                pci_iounmap(pdev, bp->bar0);
+                bp->bar0 = NULL;
+        }
+}
+
+static void bnxt_cleanup_pci(struct bnxt *bp)
+{
+        bnxt_unmap_bars(bp, bp->pdev);
+        pci_release_regions(bp->pdev);
+        pci_disable_device(bp->pdev);
+}
+
 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
 {
         int rc;
@@ -6761,25 +6788,10 @@ static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
         bp->current_interval = BNXT_TIMER_INTERVAL;
 
         clear_bit(BNXT_STATE_OPEN, &bp->state);
-
         return 0;
 
 init_err_release:
-        if (bp->bar2) {
-                pci_iounmap(pdev, bp->bar2);
-                bp->bar2 = NULL;
-        }
-
-        if (bp->bar1) {
-                pci_iounmap(pdev, bp->bar1);
-                bp->bar1 = NULL;
-        }
-
-        if (bp->bar0) {
-                pci_iounmap(pdev, bp->bar0);
-                bp->bar0 = NULL;
-        }
-
+        bnxt_unmap_bars(bp, pdev);
         pci_release_regions(pdev);
 
 init_err_disable:
@@ -7184,17 +7196,12 @@ static void bnxt_remove_one(struct pci_dev *pdev)
         bnxt_hwrm_func_drv_unrgtr(bp);
         bnxt_free_hwrm_resources(bp);
         bnxt_dcb_free(bp);
-        pci_iounmap(pdev, bp->bar2);
-        pci_iounmap(pdev, bp->bar1);
-        pci_iounmap(pdev, bp->bar0);
         kfree(bp->edev);
         bp->edev = NULL;
         if (bp->xdp_prog)
                 bpf_prog_put(bp->xdp_prog);
+        bnxt_cleanup_pci(bp);
         free_netdev(dev);
-
-        pci_release_regions(pdev);
-        pci_disable_device(pdev);
 }
 
 static int bnxt_probe_phy(struct bnxt *bp)
@@ -7400,7 +7407,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         struct bnxt *bp;
         int rc, max_irqs;
 
-        if (pdev->device == 0x16cd && pci_is_bridge(pdev))
+        if (pci_is_bridge(pdev))
                 return -ENODEV;
 
         if (version_printed++ == 0)
@@ -7426,17 +7433,16 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         dev->netdev_ops = &bnxt_netdev_ops;
         dev->watchdog_timeo = BNXT_TX_TIMEOUT;
         dev->ethtool_ops = &bnxt_ethtool_ops;
-
         pci_set_drvdata(pdev, dev);
 
         rc = bnxt_alloc_hwrm_resources(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         mutex_init(&bp->hwrm_cmd_lock);
         rc = bnxt_hwrm_ver_get(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         bnxt_hwrm_fw_set_time(bp);
 
@@ -7480,11 +7486,11 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         rc = bnxt_hwrm_func_drv_rgtr(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         rc = bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         bp->ulp_probe = bnxt_ulp_probe;
 
@@ -7494,7 +7500,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
                            rc);
                 rc = -1;
-                goto init_err;
+                goto init_err_pci_clean;
         }
 
         rc = bnxt_hwrm_queue_qportcfg(bp);
@@ -7502,7 +7508,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %x\n",
                            rc);
                 rc = -1;
-                goto init_err;
+                goto init_err_pci_clean;
         }
 
         bnxt_hwrm_func_qcfg(bp);
@@ -7516,7 +7522,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         if (rc) {
                 netdev_err(bp->dev, "Not enough rings available.\n");
                 rc = -ENOMEM;
-                goto init_err;
+                goto init_err_pci_clean;
         }
 
         /* Default RSS hash cfg. */
@@ -7546,15 +7552,15 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         rc = bnxt_probe_phy(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         rc = bnxt_hwrm_func_reset(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         rc = bnxt_init_int_mode(bp);
         if (rc)
-                goto init_err;
+                goto init_err_pci_clean;
 
         rc = register_netdev(dev);
         if (rc)
@@ -7571,10 +7577,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 init_err_clr_int:
         bnxt_clear_int_mode(bp);
 
-init_err:
-        pci_iounmap(pdev, bp->bar0);
-        pci_release_regions(pdev);
-        pci_disable_device(pdev);
+init_err_pci_clean:
+        bnxt_cleanup_pci(bp);
 
 init_err_free:
         free_netdev(dev);