bnxt_en: Add support for aRFS on 57500 chips.

Set RSS ring table index of the RFS destination ring for the NTUPLE
filters on 57500 chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index c9dad7c..143fdc9 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4226,16 +4226,25 @@ static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
 static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
                                             struct bnxt_ntuple_filter *fltr)
 {
-       struct bnxt_vnic_info *vnic = &bp->vnic_info[fltr->rxq + 1];
        struct hwrm_cfa_ntuple_filter_alloc_input req = {0};
        struct hwrm_cfa_ntuple_filter_alloc_output *resp;
        struct flow_keys *keys = &fltr->fkeys;
+       struct bnxt_vnic_info *vnic;
+       u32 dst_ena = 0;
        int rc = 0;
 
        bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_ALLOC, -1, -1);
        req.l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx];
 
-       req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
+       if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX) {
+               dst_ena = CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_RFS_RING_TBL_IDX;
+               req.rfs_ring_tbl_idx = cpu_to_le16(fltr->rxq);
+               vnic = &bp->vnic_info[0];
+       } else {
+               vnic = &bp->vnic_info[fltr->rxq + 1];
+       }
+       req.dst_id = cpu_to_le16(vnic->fw_vnic_id);
+       req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS | dst_ena);
 
        req.ethertype = htons(ETH_P_IP);
        memcpy(req.src_macaddr, fltr->src_mac_addr, ETH_ALEN);
@@ -4273,7 +4282,6 @@ static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
        req.dst_port = keys->ports.dst;
        req.dst_port_mask = cpu_to_be16(0xffff);
 
-       req.dst_id = cpu_to_le16(vnic->fw_vnic_id);
        mutex_lock(&bp->hwrm_cmd_lock);
        rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
        if (!rc) {
@@ -9114,7 +9122,7 @@ static bool bnxt_rfs_capable(struct bnxt *bp)
        int vnics, max_vnics, max_rss_ctxs;
 
        if (bp->flags & BNXT_FLAG_CHIP_P5)
-               return false;
+               return bnxt_rfs_supported(bp);
        if (!(bp->flags & BNXT_FLAG_MSIX_CAP) || !bnxt_can_reserve_rings(bp))
                return false;