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

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Message-Id: <20231205234404.17501-2-michael.chan@broadcom.com>
Date: Tue,  5 Dec 2023 15:44:01 -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>,
	Michael Chan <"michael.chan."@broadcom.com>
Subject: [PATCH net 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: b4c66425771d ("bnxt_en: refactor bnxt_cancel_reservations()")
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>
---
 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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