diff options
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 2 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_devlink.c | 6 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.c | 28 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 5 |
5 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 228055e8f33b..21f8b36df11a 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -455,6 +455,8 @@ struct ice_pf { struct hlist_head aq_wait_list; wait_queue_head_t aq_wait_queue; + wait_queue_head_t reset_wait_queue; + u32 hw_csum_rx_error; u16 oicr_idx; /* Other interrupt cause MSIX vector index */ u16 num_avail_sw_msix; /* remaining MSIX SW vectors left unclaimed */ diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c index 2923591d01ea..91b545ab8b8f 100644 --- a/drivers/net/ethernet/intel/ice/ice_devlink.c +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c @@ -276,6 +276,12 @@ static int ice_devlink_info_get(struct devlink *devlink, size_t i; int err; + err = ice_wait_for_reset(pf, 10 * HZ); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Device is busy resetting"); + return err; + } + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 357c5d39913d..1c636f4bb4fc 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -3218,6 +3218,34 @@ bool ice_is_reset_in_progress(unsigned long *state) test_bit(ICE_GLOBR_REQ, state); } +/** + * ice_wait_for_reset - Wait for driver to finish reset and rebuild + * @pf: pointer to the PF structure + * @timeout: length of time to wait, in jiffies + * + * Wait (sleep) for a short time until the driver finishes cleaning up from + * a device reset. The caller must be able to sleep. Use this to delay + * operations that could fail while the driver is cleaning up after a device + * reset. + * + * Returns 0 on success, -EBUSY if the reset is not finished within the + * timeout, and -ERESTARTSYS if the thread was interrupted. + */ +int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout) +{ + long ret; + + ret = wait_event_interruptible_timeout(pf->reset_wait_queue, + !ice_is_reset_in_progress(pf->state), + timeout); + if (ret < 0) + return ret; + else if (!ret) + return -EBUSY; + else + return 0; +} + #ifdef CONFIG_DCB /** * ice_vsi_update_q_map - update our copy of the VSI info with new queue map diff --git a/drivers/net/ethernet/intel/ice/ice_lib.h b/drivers/net/ethernet/intel/ice/ice_lib.h index 9bd619e2399a..6e2b8c2c8aa0 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_lib.h @@ -77,6 +77,7 @@ ice_get_res(struct ice_pf *pf, struct ice_res_tracker *res, u16 needed, u16 id); int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi); bool ice_is_reset_in_progress(unsigned long *state); +int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout); void ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio); diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 254cfc14d6b4..a89ca799109f 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -503,6 +503,7 @@ static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type) clear_bit(ICE_PFR_REQ, pf->state); clear_bit(ICE_CORER_REQ, pf->state); clear_bit(ICE_GLOBR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); return; } @@ -515,6 +516,7 @@ static void ice_do_reset(struct ice_pf *pf, enum ice_reset_req reset_type) ice_rebuild(pf, reset_type); clear_bit(ICE_PREPARED_FOR_RESET, pf->state); clear_bit(ICE_PFR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); ice_reset_all_vfs(pf, true); } } @@ -565,6 +567,7 @@ static void ice_reset_subtask(struct ice_pf *pf) clear_bit(ICE_PFR_REQ, pf->state); clear_bit(ICE_CORER_REQ, pf->state); clear_bit(ICE_GLOBR_REQ, pf->state); + wake_up(&pf->reset_wait_queue); ice_reset_all_vfs(pf, true); } @@ -3343,6 +3346,8 @@ static int ice_init_pf(struct ice_pf *pf) spin_lock_init(&pf->aq_wait_lock); init_waitqueue_head(&pf->aq_wait_queue); + init_waitqueue_head(&pf->reset_wait_queue); + /* setup service timer and periodic service task */ timer_setup(&pf->serv_tmr, ice_service_timer, 0); pf->serv_tmr_period = HZ; |