netdev - [PATCH net-next 2/2] bnx2x: Invalidate fastpath HSI version for VFs

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Date:   Tue, 26 Oct 2021 12:37:17 -0700
From:   Manish Chopra <manishc@...vell.com>
To:     <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <stable@...r.kernel.org>,
        <aelior@...vell.com>, <skalluru@...vell.com>,
        <malin1024@...il.com>, <smalin@...vell.com>,
        <okulkarni@...vell.com>, <njavali@...vell.com>,
        <GR-everest-linux-l2@...vell.com>
Subject: [PATCH net-next 2/2] bnx2x: Invalidate fastpath HSI version for VFs

Commit 0a6890b9b4df ("bnx2x: Utilize FW 7.13.15.0.")
added validation for fastpath HSI versions for different
client init which was not meant for SR-IOV VF clients, which
resulted in firmware asserts when running VF clients with
different fastpath HSI version.

This patch along with the new firmware support in patch #1
fixes this behavior in order to not validate fastpath HSI
version for the VFs.

Fixes: 0a6890b9b4df ("bnx2x: Utilize FW 7.13.15.0.")
Signed-off-by: Manish Chopra <manishc@...vell.com>
Signed-off-by: Ariel Elior <aelior@...vell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@...vell.com>
Signed-off-by: Shai Malin <smalin@...vell.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 9c2f51f23035..b1817f5e6179 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -758,9 +758,17 @@ static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
 
 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
 {
+	u16 abs_fid;
+
+	abs_fid = FW_VF_HANDLE(abs_vfid);
+
 	/* set the VF-PF association in the FW */
-	storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
-	storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
+	storm_memset_vf_to_pf(bp, abs_fid, BP_FUNC(bp));
+	storm_memset_func_en(bp, abs_fid, 1);
+
+	/* Invalidate fp_hsi version for vfs */
+	REG_WR8(bp,
+		BAR_XSTRORM_INTMEM + XSTORM_ETH_FUNCTION_INFO_FP_HSI_VALID_E2_OFFSET(abs_fid), 0);
 
 	/* clear vf errors*/
 	bnx2x_vf_semi_clear_err(bp, abs_vfid);
-- 
2.27.0