You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
4.2 KiB
108 lines
4.2 KiB
From b5a3e2be5f5d41b6d999ad9346f1247e2b7ad247 Mon Sep 17 00:00:00 2001
|
|
From: Jonathan Toppins <jtoppins@redhat.com>
|
|
Date: Wed, 2 Oct 2019 18:23:25 -0400
|
|
Subject: [PATCH 70/96] [netdrv] bnxt_en: Add BNXT_STATE_IN_FW_RESET state
|
|
|
|
Message-id: <7698266f568917253716b6f64ad8c2c5ae29a62a.1570027456.git.jtoppins@redhat.com>
|
|
Patchwork-id: 276488
|
|
O-Subject: [RHEL-8.2 PATCH 63/78] bnxt_en: Add BNXT_STATE_IN_FW_RESET state.
|
|
Bugzilla: 1724766
|
|
RH-Acked-by: John Linville <linville@redhat.com>
|
|
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
|
|
|
|
The new flag will be set in subsequent patches when firmware is
|
|
going through reset. If bnxt_close() is called while the new flag
|
|
is set, the FW reset sequence will have to be aborted because the
|
|
NIC is prematurely closed before FW reset has completed. We also
|
|
reject SRIOV configurations while FW reset is in progress.
|
|
|
|
v2: No longer drop rtnl_lock() in close and wait for FW reset to complete.
|
|
|
|
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
(cherry picked from commit 3bc7d4a352efe5b596883ef16b769055320db1f6)
|
|
Bugzilla: 1724766
|
|
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=23809532
|
|
Tested: build, boot, basic ping
|
|
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
|
|
Signed-off-by: Bruno Meneguele <bmeneg@redhat.com>
|
|
---
|
|
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 20 ++++++++++++++++++++
|
|
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 +
|
|
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 5 +++++
|
|
3 files changed, 26 insertions(+)
|
|
|
|
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.c
|
|
===================================================================
|
|
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:19.590477537 +0100
|
|
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:19.749476077 +0100
|
|
@@ -8721,6 +8721,10 @@
|
|
if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE)
|
|
fw_reset = true;
|
|
|
|
+ if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) {
|
|
+ netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n");
|
|
+ return -ENODEV;
|
|
+ }
|
|
if (resc_reinit || fw_reset) {
|
|
if (fw_reset) {
|
|
rc = bnxt_fw_init_one(bp);
|
|
@@ -9231,6 +9235,10 @@
|
|
bnxt_debug_dev_exit(bp);
|
|
bnxt_disable_napi(bp);
|
|
del_timer_sync(&bp->timer);
|
|
+ if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) &&
|
|
+ pci_is_enabled(bp->pdev))
|
|
+ pci_disable_device(bp->pdev);
|
|
+
|
|
bnxt_free_skbs(bp);
|
|
|
|
/* Save ring stats before shutdown */
|
|
@@ -9247,6 +9255,18 @@
|
|
{
|
|
int rc = 0;
|
|
|
|
+ if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
|
|
+ /* If we get here, it means firmware reset is in progress
|
|
+ * while we are trying to close. We can safely proceed with
|
|
+ * the close because we are holding rtnl_lock(). Some firmware
|
|
+ * messages may fail as we proceed to close. We set the
|
|
+ * ABORT_ERR flag here so that the FW reset thread will later
|
|
+ * abort when it gets the rtnl_lock() and sees the flag.
|
|
+ */
|
|
+ netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n");
|
|
+ set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
|
|
+ }
|
|
+
|
|
#ifdef CONFIG_BNXT_SRIOV
|
|
if (bp->sriov_cfg) {
|
|
rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait,
|
|
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.h
|
|
===================================================================
|
|
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.h 2020-02-06 16:23:19.591477528 +0100
|
|
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.h 2020-02-06 16:23:19.750476068 +0100
|
|
@@ -1605,6 +1605,7 @@
|
|
#define BNXT_STATE_IN_SP_TASK 1
|
|
#define BNXT_STATE_READ_STATS 2
|
|
#define BNXT_STATE_FW_RESET_DET 3
|
|
+#define BNXT_STATE_IN_FW_RESET 4
|
|
#define BNXT_STATE_ABORT_ERR 5
|
|
|
|
struct bnxt_irq *irq_tbl;
|
|
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
|
|
===================================================================
|
|
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c 2020-02-06 16:23:19.013482833 +0100
|
|
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c 2020-02-06 16:23:19.750476068 +0100
|
|
@@ -828,6 +828,11 @@
|
|
rtnl_unlock();
|
|
return 0;
|
|
}
|
|
+ if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
|
|
+ netdev_warn(dev, "Reject SRIOV config request when FW reset is in progress\n");
|
|
+ rtnl_unlock();
|
|
+ return 0;
|
|
+ }
|
|
bp->sriov_cfg = true;
|
|
rtnl_unlock();
|
|
|