netdev - [PATCH net v3 1/4] bnxt_en: Clear resource reservation during resume

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Message-Id: <20231208001658.14230-2-michael.chan@broadcom.com>
Date: Thu,  7 Dec 2023 16:16:55 -0800
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	gospo@...adcom.com,
	Somnath Kotur <somnath.kotur@...adcom.com>,
	Kalesh AP <kalesh-anakkur.purayil@...adcom.com>,
	Ajit Khaparde <ajit.khaparde@...adcom.com>,
	Andy Gospodarek <andrew.gospodarek@...adcom.com>
Subject: [PATCH net v3 1/4] bnxt_en: Clear resource reservation during resume

From: Somnath Kotur <somnath.kotur@...adcom.com>

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@...adcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@...adcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@...adcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
v3: Fix Fixes tag.
v2: Fix typo in SoB tag.
---
 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 d0359b569afe..72f2fc983940 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -13940,6 +13940,8 @@ 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;
-- 
2.30.1


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