From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Date: Fri, 26 Oct 2018 10:40:51 -0700
Subject: ice: Check for reset in progress during remove
Patch-mainline: v4.20-rc2
Git-commit: afd9d4ab58db20029a75cf82f23b6a5641cd7d6f
References: bsc#1118661 FATE#325277
The remove path does not currently check to see if a
reset is in progress before proceeding. This can cause
a resource collision resulting in various types of errors.
Check for reset in progress and wait for a reasonable
amount of time before allowing the remove to progress.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/ice/ice.h | 2 ++
drivers/net/ethernet/intel/ice/ice_main.c | 6 ++++++
2 files changed, 8 insertions(+)
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -76,6 +76,8 @@ extern const char ice_drv_ver[];
#define ICE_MIN_INTR_PER_VF (ICE_MIN_QS_PER_VF + 1)
#define ICE_DFLT_INTR_PER_VF (ICE_DFLT_QS_PER_VF + 1)
+#define ICE_MAX_RESET_WAIT 20
+
#define ICE_VSIQF_HKEY_ARRAY_SIZE ((VSIQF_HKEY_MAX_INDEX + 1) * 4)
#define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -2182,6 +2182,12 @@ static void ice_remove(struct pci_dev *p
if (!pf)
return;
+ for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {
+ if (!ice_is_reset_in_progress(pf->state))
+ break;
+ msleep(100);
+ }
+
set_bit(__ICE_DOWN, pf->state);
ice_service_task_stop(pf);