bnx2x: Fix port identification for the 84834

Fix the "ethtool -p" for boards with BCM84834, by using LED4 of the PHY
to toggle the link LED while keeping interrupt disabled to avoid NIG attentions,
and at the end restore NIG to previous state.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 1663e0b6b5a01f0baee17e6584dc6b65cf07344c..4719ab1a31e3778bf621e5709de49e6ad84a62c8 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -10422,6 +10422,28 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
                                         MDIO_PMA_DEVAD,
                                         MDIO_PMA_REG_8481_LED1_MASK,
                                         0x0);
+                       if (phy->type ==
+                           PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
+                               /* Disable MI_INT interrupt before setting LED4
+                                * source to constant off.
+                                */
+                               if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
+                                          params->port*4) &
+                                   NIG_MASK_MI_INT) {
+                                       params->link_flags |=
+                                       LINK_FLAGS_INT_DISABLED;
+
+                                       bnx2x_bits_dis(
+                                               bp,
+                                               NIG_REG_MASK_INTERRUPT_PORT0 +
+                                               params->port*4,
+                                               NIG_MASK_MI_INT);
+                               }
+                               bnx2x_cl45_write(bp, phy,
+                                                MDIO_PMA_DEVAD,
+                                                MDIO_PMA_REG_8481_SIGNAL_MASK,
+                                                0x0);
+                       }
                }
                break;
        case LED_MODE_ON:
@@ -10468,6 +10490,28 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
                                         MDIO_PMA_DEVAD,
                                         MDIO_PMA_REG_8481_LED1_MASK,
                                         0x20);
+                       if (phy->type ==
+                           PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
+                               /* Disable MI_INT interrupt before setting LED4
+                                * source to constant on.
+                                */
+                               if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
+                                          params->port*4) &
+                                   NIG_MASK_MI_INT) {
+                                       params->link_flags |=
+                                       LINK_FLAGS_INT_DISABLED;
+
+                                       bnx2x_bits_dis(
+                                               bp,
+                                               NIG_REG_MASK_INTERRUPT_PORT0 +
+                                               params->port*4,
+                                               NIG_MASK_MI_INT);
+                               }
+                               bnx2x_cl45_write(bp, phy,
+                                                MDIO_PMA_DEVAD,
+                                                MDIO_PMA_REG_8481_SIGNAL_MASK,
+                                                0x20);
+                       }
                }
                break;
 
@@ -10532,6 +10576,22 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
                                         MDIO_PMA_DEVAD,
                                         MDIO_PMA_REG_8481_LINK_SIGNAL,
                                         val);
+                       if (phy->type ==
+                           PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
+                               /* Restore LED4 source to external link,
+                                * and re-enable interrupts.
+                                */
+                               bnx2x_cl45_write(bp, phy,
+                                                MDIO_PMA_DEVAD,
+                                                MDIO_PMA_REG_8481_SIGNAL_MASK,
+                                                0x40);
+                               if (params->link_flags &
+                                   LINK_FLAGS_INT_DISABLED) {
+                                       bnx2x_link_int_enable(params);
+                                       params->link_flags &=
+                                               ~LINK_FLAGS_INT_DISABLED;
+                               }
+                       }
                }
                break;
        }

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index d25c7d79787a1bacdfb0dc526bc9814fdfab8d2d..be5c195d03dd01addf2706c81896d1872b94d96c 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -307,7 +307,8 @@ struct link_params {
        struct bnx2x *bp;
        u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
                                req_flow_ctrl is set to AUTO */
-       u16 rsrv1;
+       u16 link_flags;
+#define LINK_FLAGS_INT_DISABLED                (1<<0)
        u32 lfa_base;
 };