diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-5.10/linux-yocto-5.10.47-amdx86/0002-amd-xgbe-fix-for-the-crash-which-happens-during-SFP-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-5.10/linux-yocto-5.10.47-amdx86/0002-amd-xgbe-fix-for-the-crash-which-happens-during-SFP-.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-5.10/linux-yocto-5.10.47-amdx86/0002-amd-xgbe-fix-for-the-crash-which-happens-during-SFP-.patch b/meta-amd-bsp/recipes-kernel/linux-5.10/linux-yocto-5.10.47-amdx86/0002-amd-xgbe-fix-for-the-crash-which-happens-during-SFP-.patch new file mode 100644 index 00000000..9cbb46a0 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-5.10/linux-yocto-5.10.47-amdx86/0002-amd-xgbe-fix-for-the-crash-which-happens-during-SFP-.patch @@ -0,0 +1,77 @@ +From 1cbf1b80948bcb1c46b9674d6ff8f2b2629d1327 Mon Sep 17 00:00:00 2001 +From: Sudheesh Mavila <sudheesh.mavila@amd.com> +Date: Thu, 13 Feb 2020 15:26:20 +0530 +Subject: [PATCH 02/10] amd-xgbe fix for the crash which happens during SFP + hotplug + + INFO: task kworker/u32:3:238 blocked for more than 120 seconds. + Tainted: G E 5.4.2-sfp-fix+ #58 + "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. + kworker/u32:3 D 0 238 2 0x80004000 + Workqueue: enp2s0f1 xgbe_service [amd_xgbe] + Call Trace: + ? __schedule+0x293/0x700 + schedule+0x2f/0xa0 + schedule_preempt_disabled+0xa/0x10 + __mutex_lock.isra.9+0x26d/0x4e0 + ? xgbe_phy_get_comm_ownership+0x1f/0x110 [amd_xgbe] + xgbe_phy_get_comm_ownership+0x1f/0x110 [amd_xgbe] + xgbe_phy_mii_read+0x28/0xb0 [amd_xgbe] + ? kernfs_put+0xe9/0x190 + __mdiobus_read+0x3b/0xd0 + __phy_modify_changed+0x2b/0x80 + phy_modify+0x38/0x60 + phy_suspend+0x84/0xc0 + phy_detach+0x5e/0x120 + xgbe_phy_free_phy_device.isra.22+0x1d/0x50 [amd_xgbe] + xgbe_phy_sfp_mod_absent.isra.25+0xe/0x50 [amd_xgbe] + xgbe_phy_sfp_detect+0x16a/0x9b0 [amd_xgbe] + ? xgbe_phy_link_status+0x10a/0x490 [amd_xgbe] + xgbe_phy_link_status+0x10a/0x490 [amd_xgbe] + xgbe_phy_status+0x57/0x380 [amd_xgbe] + process_one_work+0x1f4/0x3e0 + worker_thread+0x2d/0x3e0 + ? process_one_work+0x3e0/0x3e0 + kthread+0x113/0x130 + ? kthread_park+0x90/0x90 + ret_from_fork+0x22/0x40 + +Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com> +--- + drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c +index 18e48b3bc402..90f33c3ddb32 100644 +--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c ++++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c +@@ -1283,7 +1283,7 @@ static int xgbe_phy_sfp_read_eeprom(struct xgbe_prv_data *pdata) + + memcpy(&phy_data->sfp_eeprom, &sfp_eeprom, sizeof(sfp_eeprom)); + +- xgbe_phy_free_phy_device(pdata); ++ + } else { + phy_data->sfp_changed = 0; + } +@@ -1320,7 +1320,6 @@ static void xgbe_phy_sfp_mod_absent(struct xgbe_prv_data *pdata) + { + struct xgbe_phy_data *phy_data = pdata->phy_data; + +- xgbe_phy_free_phy_device(pdata); + + phy_data->sfp_mod_absent = 1; + phy_data->sfp_phy_avail = 0; +@@ -1372,6 +1371,9 @@ static void xgbe_phy_sfp_detect(struct xgbe_prv_data *pdata) + xgbe_phy_sfp_phy_settings(pdata); + + xgbe_phy_put_comm_ownership(pdata); ++ ++ if((phy_data->sfp_mod_absent) || (phy_data->sfp_changed)) ++ xgbe_phy_free_phy_device(pdata); + } + + static int xgbe_phy_module_eeprom(struct xgbe_prv_data *pdata, +-- +2.17.1 + |