[PATCH AUTOSEL 6.6 061/104] ionic: bypass firmware cmds when stuck in reset
From: Sasha Levin <sashal@kernel.org>
Date: 2024-01-16 19:52:03
Also in:
lkml, stable
Subsystem:
networking drivers, pensando ethernet drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Brett Creeley, Linus Torvalds
From: Shannon Nelson <redacted> [ Upstream commit ca5fdf9a7c5b65968c718f2be159cda4c13556a1 ] If the driver or firmware is stuck in reset state, don't bother trying to use adminq commands. This speeds up shutdown and prevents unnecessary timeouts and error messages. This includes a bit of rework on ionic_adminq_post_wait() and ionic_adminq_post_wait_nomsg() to both use __ionic_adminq_post_wait() which can do the checks needed in both cases. Signed-off-by: Shannon Nelson <redacted> Reviewed-by: Brett Creeley <brett.creeley@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- .../ethernet/pensando/ionic/ionic_bus_pci.c | 4 ++++ .../net/ethernet/pensando/ionic/ionic_lif.c | 3 +++ .../net/ethernet/pensando/ionic/ionic_main.c | 20 ++++++++++++------- 3 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
index d6ce113a4210..fa4237c27e06 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c@@ -392,6 +392,10 @@ static void ionic_remove(struct pci_dev *pdev) del_timer_sync(&ionic->watchdog_timer); if (ionic->lif) { + /* prevent adminq cmds if already known as down */ + if (test_and_clear_bit(IONIC_LIF_F_FW_RESET, ionic->lif->state)) + set_bit(IONIC_LIF_F_FW_STOPPING, ionic->lif->state); + ionic_lif_unregister(ionic->lif); ionic_devlink_unregister(ionic); ionic_lif_deinit(ionic->lif);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index c9bd2c57a37d..adb0f9b01bb1 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c@@ -3238,6 +3238,9 @@ static void ionic_lif_reset(struct ionic_lif *lif) { struct ionic_dev *idev = &lif->ionic->idev; + if (!ionic_is_fw_running(idev)) + return; + mutex_lock(&lif->ionic->dev_cmd_lock); ionic_dev_cmd_lif_reset(idev, lif->index); ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index baa865af49ad..f019277fec57 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c@@ -410,22 +410,28 @@ int ionic_adminq_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx, do_msg); } -int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) +static int __ionic_adminq_post_wait(struct ionic_lif *lif, + struct ionic_admin_ctx *ctx, + const bool do_msg) { int err; + if (!ionic_is_fw_running(&lif->ionic->idev)) + return 0; + err = ionic_adminq_post(lif, ctx); - return ionic_adminq_wait(lif, ctx, err, true); + return ionic_adminq_wait(lif, ctx, err, do_msg); } -int ionic_adminq_post_wait_nomsg(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) +int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) { - int err; - - err = ionic_adminq_post(lif, ctx); + return __ionic_adminq_post_wait(lif, ctx, true); +} - return ionic_adminq_wait(lif, ctx, err, false); +int ionic_adminq_post_wait_nomsg(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) +{ + return __ionic_adminq_post_wait(lif, ctx, false); } static void ionic_dev_cmd_clean(struct ionic *ionic)
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2.43.0