[PATCH net-next] qed: Enable automatic recovery on error condition.
From: Alok Prasad <hidden>
Date: 2021-08-24 04:03:06
This patch enables automatic recovery by default in case of various error condition like fw assert , hardware error etc. This also ensure driver can handle multiple iteration of assertion conditions. Signed-off-by: Ariel Elior <redacted> Signed-off-by: Shai Malin <redacted> Signed-off-by: Igor Russkikh <redacted> Signed-off-by: Alok Prasad <redacted> --- drivers/net/ethernet/qlogic/qed/qed_devlink.c | 2 +- drivers/net/ethernet/qlogic/qed/qed_int.c | 10 +++++++++ drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +++++++ drivers/net/ethernet/qlogic/qede/qede_main.c | 21 ++++++++++++++++++- 4 files changed, 39 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_devlink.c b/drivers/net/ethernet/qlogic/qed/qed_devlink.c
index cf7f4da68e69..61349b8adf75 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_devlink.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_devlink.c@@ -93,7 +93,7 @@ static const struct devlink_health_reporter_ops qed_fw_fatal_reporter_ops = { .dump = qed_fw_fatal_reporter_dump, }; -#define QED_REPORTER_FW_GRACEFUL_PERIOD 1200000 +#define QED_REPORTER_FW_GRACEFUL_PERIOD 0 void qed_fw_reporters_create(struct devlink *devlink) {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c
index 578935f643b8..0993fea75ea1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.c@@ -351,6 +351,9 @@ static int qed_fw_assertion(struct qed_hwfn *p_hwfn) qed_hw_err_notify(p_hwfn, p_hwfn->p_dpc_ptt, QED_HW_ERR_FW_ASSERT, "FW assertion!\n"); + /* Clear assert indications */ + qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, MISC_REG_AEU_GENERAL_ATTN_32, 0); + return -EINVAL; }
@@ -943,6 +946,13 @@ qed_int_deassertion_aeu_bit(struct qed_hwfn *p_hwfn, DP_INFO(p_hwfn, "`%s' - Disabled future attentions\n", p_bit_name); + /* Re-enable FW aassertion (Gen 32) interrupts */ + val = qed_rd(p_hwfn, p_hwfn->p_dpc_ptt, + MISC_REG_AEU_ENABLE4_IGU_OUT_0); + val |= MISC_REG_AEU_ENABLE4_IGU_OUT_0_GENERAL_ATTN32; + qed_wr(p_hwfn, p_hwfn->p_dpc_ptt, + MISC_REG_AEU_ENABLE4_IGU_OUT_0, val); + out: return rc; }
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index 9db22be42476..da1b7fdcbda7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h@@ -504,6 +504,8 @@ 0x180824UL #define MISC_REG_AEU_GENERAL_ATTN_0 \ 0x008400UL +#define MISC_REG_AEU_GENERAL_ATTN_32 \ + 0x008480UL #define MISC_REG_AEU_GENERAL_ATTN_35 \ 0x00848cUL #define CAU_REG_SB_ADDR_MEMORY \
@@ -518,6 +520,12 @@ 0x180804UL #define MISC_REG_AEU_ENABLE1_IGU_OUT_0 \ 0x00849cUL +#define MISC_REG_AEU_ENABLE4_IGU_OUT_0 \ + 0x0084a8UL +#define MISC_REG_AEU_ENABLE4_IGU_OUT_0_GENERAL_ATTN32 \ + (0x1UL << 0) +#define MISC_REG_AEU_ENABLE4_IGU_OUT_0_GENERAL_ATTN32_SHIFT \ + 0 #define MISC_REG_AEU_AFTER_INVERT_1_IGU \ 0x0087b4UL #define MISC_REG_AEU_MASK_ATTN_IGU \
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 7c6064baeba2..e86301cfb49c 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c@@ -1906,6 +1906,12 @@ static int qede_req_msix_irqs(struct qede_dev *edev) &edev->fp_array[i]); if (rc) { DP_ERR(edev, "Request fp %d irq failed\n", i); +#ifdef CONFIG_RFS_ACCEL + if (edev->ndev->rx_cpu_rmap) + free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap); + + edev->ndev->rx_cpu_rmap = NULL; +#endif qede_sync_free_irqs(edev); return rc; }
@@ -2298,6 +2304,15 @@ static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode, rc = qede_stop_queues(edev); if (rc) { +#ifdef CONFIG_RFS_ACCEL + if (edev->dev_info.common.b_arfs_capable) { + qede_poll_for_freeing_arfs_filters(edev); + if (edev->ndev->rx_cpu_rmap) + free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap); + + edev->ndev->rx_cpu_rmap = NULL; + } +#endif qede_sync_free_irqs(edev); goto out; }
@@ -2628,8 +2643,10 @@ static void qede_generic_hw_err_handler(struct qede_dev *edev) "Generic sleepable HW error handling started - err_flags 0x%lx\n", edev->err_flags); - if (edev->devlink) + if (edev->devlink) { + DP_NOTICE(edev, "Reporting fatal error to devlink\n"); edev->ops->common->report_fatal_error(edev->devlink, edev->last_err_type); + } clear_bit(QEDE_ERR_IS_HANDLED, &edev->err_flags);
@@ -2651,6 +2668,8 @@ static void qede_set_hw_err_flags(struct qede_dev *edev, case QED_HW_ERR_FW_ASSERT: set_bit(QEDE_ERR_ATTN_CLR_EN, &err_flags); set_bit(QEDE_ERR_GET_DBG_INFO, &err_flags); + /* make this error as recoverable and start recovery*/ + set_bit(QEDE_ERR_IS_RECOVERABLE, &err_flags); break; default:
--
2.17.1