bnxt_en: Add function to get vnic capability.

The new vnic RSS capability will enhance NTUPLE support, to be added
in subsequent patches.

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 0654c3f..9168326 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3665,6 +3665,27 @@ static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id,
        return rc;
 }
 
+static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
+{
+       struct hwrm_vnic_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
+       struct hwrm_vnic_qcaps_input req = {0};
+       int rc;
+
+       if (bp->hwrm_spec_code < 0x10600)
+               return 0;
+
+       bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_QCAPS, -1, -1);
+       mutex_lock(&bp->hwrm_cmd_lock);
+       rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+       if (!rc) {
+               if (resp->flags &
+                   cpu_to_le32(VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP))
+                       bp->flags |= BNXT_FLAG_NEW_RSS_CAP;
+       }
+       mutex_unlock(&bp->hwrm_cmd_lock);
+       return rc;
+}
+
 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp)
 {
        u16 i;
@@ -7070,6 +7091,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                                    VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6;
        }
 
+       bnxt_hwrm_vnic_qcaps(bp);
        if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) {
                dev->hw_features |= NETIF_F_NTUPLE;
                if (bnxt_rfs_capable(bp)) {

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 0eb6401..80bf1ab 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -944,6 +944,7 @@ struct bnxt {
        #define BNXT_FLAG_PORT_STATS    0x400
        #define BNXT_FLAG_UDP_RSS_CAP   0x800
        #define BNXT_FLAG_EEE_CAP       0x1000
+       #define BNXT_FLAG_NEW_RSS_CAP   0x2000
        #define BNXT_FLAG_ROCEV1_CAP    0x8000
        #define BNXT_FLAG_ROCEV2_CAP    0x10000
        #define BNXT_FLAG_ROCE_CAP      (BNXT_FLAG_ROCEV1_CAP | \

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
index 2ddfa51..d0d49ed 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
@@ -2797,6 +2797,40 @@ struct hwrm_vnic_cfg_output {
        u8 valid;
 };
 
+/* hwrm_vnic_qcaps */
+/* Input (24 bytes) */
+struct hwrm_vnic_qcaps_input {
+       __le16 req_type;
+       __le16 cmpl_ring;
+       __le16 seq_id;
+       __le16 target_id;
+       __le64 resp_addr;
+       __le32 enables;
+       __le32 unused_0;
+};
+
+/* Output (24 bytes) */
+struct hwrm_vnic_qcaps_output {
+       __le16 error_code;
+       __le16 req_type;
+       __le16 seq_id;
+       __le16 resp_len;
+       __le16 mru;
+       u8 unused_0;
+       u8 unused_1;
+       __le32 flags;
+       #define VNIC_QCAPS_RESP_FLAGS_VLAN_STRIP_CAP                0x2UL
+       #define VNIC_QCAPS_RESP_FLAGS_BD_STALL_CAP                  0x4UL
+       #define VNIC_QCAPS_RESP_FLAGS_ROCE_DUAL_VNIC_CAP            0x8UL
+       #define VNIC_QCAPS_RESP_FLAGS_ROCE_ONLY_VNIC_CAP            0x10UL
+       #define VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP               0x20UL
+       __le32 unused_2;
+       u8 unused_3;
+       u8 unused_4;
+       u8 unused_5;
+       u8 valid;
+};
+
 /* hwrm_vnic_tpa_cfg */
 /* Input (40 bytes) */
 struct hwrm_vnic_tpa_cfg_input {