From: Somnath Kotur somnath.kotur@broadcom.com
stable inclusion from stable-v6.6.8 commit bf9ceb1633621d15e83723ec87c938e4b73b301f bugzilla: https://gitee.com/openeuler/kernel/issues/I99K53
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 9ef7c58f5abe41e6d91f37f28fe2d851ffedd92a ]
We are issuing HWRM_FUNC_RESET cmd to reset the device including all reserved resources, but not clearing the reservations within the driver struct. As a result, when the driver re-initializes as part of resume, it believes that there is no need to do any resource reservation and goes ahead and tries to allocate rings which will eventually fail beyond a certain number pre-reserved by the firmware.
Fixes: 674f50a5b026 ("bnxt_en: Implement new method to reserve rings.") Reviewed-by: Kalesh AP kalesh-anakkur.purayil@broadcom.com Reviewed-by: Ajit Khaparde ajit.khaparde@broadcom.com Reviewed-by: Andy Gospodarek andrew.gospodarek@broadcom.com Signed-off-by: Somnath Kotur somnath.kotur@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Link: https://lore.kernel.org/r/20231208001658.14230-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: ZhangPeng zhangpeng362@huawei.com --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 7551aa8068f8..4d2296f201ad 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -13897,6 +13897,8 @@ static int bnxt_resume(struct device *device) if (rc) goto resume_exit;
+ bnxt_clear_reservations(bp, true); + if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) { rc = -ENODEV; goto resume_exit;