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Date: Fri, 2 Sep 2022 14:18:30 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Vikas Gupta <vikas.gupta@...adcom.com>, Michael Chan <michael.chan@...adcom.com>, Jakub Kicinski <kuba@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.4 21/77] bnxt_en: fix NQ resource accounting during vf creation on 57500 chips From: Vikas Gupta <vikas.gupta@...adcom.com> [ Upstream commit 09a89cc59ad67794a11e1d3dd13c5b3172adcc51 ] There are 2 issues: 1. We should decrement hw_resc->max_nqs instead of hw_resc->max_irqs with the number of NQs assigned to the VFs. The IRQs are fixed on each function and cannot be re-assigned. Only the NQs are being assigned to the VFs. 2. vf_msix is the total number of NQs to be assigned to the VFs. So we should decrement vf_msix from hw_resc->max_nqs. Fixes: b16b68918674 ("bnxt_en: Add SR-IOV support for 57500 chips.") Signed-off-by: Vikas Gupta <vikas.gupta@...adcom.com> Signed-off-by: Michael Chan <michael.chan@...adcom.com> Signed-off-by: Jakub Kicinski <kuba@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 452be9749827a..3434ad6824a05 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -597,7 +597,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) hw_resc->max_stat_ctxs -= le16_to_cpu(req.min_stat_ctx) * n; hw_resc->max_vnics -= le16_to_cpu(req.min_vnics) * n; if (bp->flags & BNXT_FLAG_CHIP_P5) - hw_resc->max_irqs -= vf_msix * n; + hw_resc->max_nqs -= vf_msix; rc = pf->active_vfs; } -- 2.35.1
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