From: Eddie Wai Date: Sat, 10 Mar 2018 04:46:04 +0000 (-0500) Subject: bnxt_en: Fix vnic accounting in the bnxt_check_rings() path. X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6fc2ffdf1001ae4fb485b3ba95ff757ae54565c9;p=linux.git bnxt_en: Fix vnic accounting in the bnxt_check_rings() path. The number of vnics to check must be determined ahead of time because only standard RX rings require vnics to support RFS. The logic is similar to the ring reservation logic and we can now use the refactored common functions to do most of the work in setting up the firmware message. Fixes: 8f23d638b36b ("bnxt_en: Expand bnxt_check_rings() to check all resources.") Signed-off-by: Eddie Wai Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 377fcebadffcd..b847d54504ed5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4764,39 +4764,25 @@ static bool bnxt_need_reserve_rings(struct bnxt *bp) } static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, - int ring_grps, int cp_rings) + int ring_grps, int cp_rings, int vnics) { struct hwrm_func_vf_cfg_input req = {0}; - u32 flags, enables; + u32 flags; int rc; if (!(bp->flags & BNXT_FLAG_NEW_RM)) return 0; - bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1); + __bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps, + cp_rings, vnics); flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST; - enables = FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS | - FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS | - FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS | - FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS | - FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS | - FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS; req.flags = cpu_to_le32(flags); - req.enables = cpu_to_le32(enables); - req.num_tx_rings = cpu_to_le16(tx_rings); - req.num_rx_rings = cpu_to_le16(rx_rings); - req.num_cmpl_rings = cpu_to_le16(cp_rings); - req.num_hw_ring_grps = cpu_to_le16(ring_grps); - req.num_stat_ctxs = cpu_to_le16(cp_rings); - req.num_vnics = cpu_to_le16(1); - if (bp->flags & BNXT_FLAG_RFS) - req.num_vnics = cpu_to_le16(rx_rings + 1); rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); if (rc) return -ENOMEM; @@ -4804,38 +4790,23 @@ static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, } static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, - int ring_grps, int cp_rings) + int ring_grps, int cp_rings, int vnics) { struct hwrm_func_cfg_input req = {0}; - u32 flags, enables; + u32 flags; int rc; - bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1); - req.fid = cpu_to_le16(0xffff); + __bnxt_hwrm_reserve_pf_rings(bp, &req, tx_rings, rx_rings, ring_grps, + cp_rings, vnics); flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST; - enables = FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS; - req.num_tx_rings = cpu_to_le16(tx_rings); - if (bp->flags & BNXT_FLAG_NEW_RM) { + if (bp->flags & BNXT_FLAG_NEW_RM) flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST; - enables |= FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS | - FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS | - FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS | - FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS | - FUNC_CFG_REQ_ENABLES_NUM_VNICS; - req.num_rx_rings = cpu_to_le16(rx_rings); - req.num_cmpl_rings = cpu_to_le16(cp_rings); - req.num_hw_ring_grps = cpu_to_le16(ring_grps); - req.num_stat_ctxs = cpu_to_le16(cp_rings); - req.num_vnics = cpu_to_le16(1); - if (bp->flags & BNXT_FLAG_RFS) - req.num_vnics = cpu_to_le16(rx_rings + 1); - } + req.flags = cpu_to_le32(flags); - req.enables = cpu_to_le32(enables); rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); if (rc) return -ENOMEM; @@ -4843,17 +4814,17 @@ static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, } static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings, - int ring_grps, int cp_rings) + int ring_grps, int cp_rings, int vnics) { if (bp->hwrm_spec_code < 0x10801) return 0; if (BNXT_PF(bp)) return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings, - ring_grps, cp_rings); + ring_grps, cp_rings, vnics); return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps, - cp_rings); + cp_rings, vnics); } static void bnxt_hwrm_set_coal_params(struct bnxt_coal *hw_coal, @@ -7552,7 +7523,7 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, int max_rx, max_tx, tx_sets = 1; int tx_rings_needed; int rx_rings = rx; - int cp, rc; + int cp, vnics, rc; if (tcs) tx_sets = tcs; @@ -7568,10 +7539,15 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, if (max_tx < tx_rings_needed) return -ENOMEM; + vnics = 1; + if (bp->flags & BNXT_FLAG_RFS) + vnics += rx_rings; + if (bp->flags & BNXT_FLAG_AGG_RINGS) rx_rings <<= 1; cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx; - return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp); + return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp, + vnics); } static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)