[dpdk-dev] [PATCH v4 21/39] bnxt: add HWRM API to configure RSS

[Stephen Hurd]

From: Ajit Khaparde <ajit.khaparde at broadcom.com>

As mentioned earlier:
A VNIC represents a virtual interface. It is a resource in the RX path
of the chip and is used to setup various target actions such as RSS,
MAC filtering etc.. for the physical function in use.

The HWRM API defined in this patch will be used to enable RSS
configuration of the VNIC.

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: David Christensen <david.christensen at broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd at broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c           | 24 ++++++++++++++++++++++++
 drivers/net/bnxt/bnxt_hwrm.h           |  2 ++
 drivers/net/bnxt/hsi_struct_def_dpdk.h |  1 +
 3 files changed, 27 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 87853f6..c43c2da 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -603,6 +603,30 @@ int bnxt_hwrm_vnic_free(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 	return rc;
 }
 
+int bnxt_hwrm_vnic_rss_cfg(struct bnxt *bp,
+			   struct bnxt_vnic_info *vnic)
+{
+	int rc = 0;
+	struct hwrm_vnic_rss_cfg_input req = {.req_type = 0 };
+	struct hwrm_vnic_rss_cfg_output *resp = bp->hwrm_cmd_resp_addr;
+
+	HWRM_PREP(req, VNIC_RSS_CFG, -1, resp);
+
+	req.hash_type = rte_cpu_to_le_32(vnic->hash_type);
+
+	req.ring_grp_tbl_addr =
+	    rte_cpu_to_le_64(vnic->rss_table_dma_addr);
+	req.hash_key_tbl_addr =
+	    rte_cpu_to_le_64(vnic->rss_hash_key_dma_addr);
+	req.rss_ctx_idx = rte_cpu_to_le_16(vnic->fw_rss_cos_lb_ctx);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	return rc;
+}
+
 /*
  * HWRM utility functions
  */
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index b7f6b20..7c12c6d 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -64,6 +64,8 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 int bnxt_hwrm_vnic_ctx_free(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 int bnxt_hwrm_vnic_free(struct bnxt *bp, struct bnxt_vnic_info *vnic);
+int bnxt_hwrm_vnic_rss_cfg(struct bnxt *bp,
+			   struct bnxt_vnic_info *vnic);
 
 int bnxt_clear_all_hwrm_stat_ctxs(struct bnxt *bp);
 void bnxt_free_hwrm_resources(struct bnxt *bp);
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 6412df2..72d4984 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -92,6 +92,7 @@ struct ctx_hw_stats64 {
 #define HWRM_VNIC_ALLOC			(UINT32_C(0x40))
 #define HWRM_VNIC_FREE			(UINT32_C(0x41))
 #define HWRM_VNIC_CFG			(UINT32_C(0x42))
+#define HWRM_VNIC_RSS_CFG		(UINT32_C(0x46))
 #define HWRM_VNIC_RSS_COS_LB_CTX_ALLOC	(UINT32_C(0x70))
 #define HWRM_VNIC_RSS_COS_LB_CTX_FREE	(UINT32_C(0x71))
 #define HWRM_CFA_L2_FILTER_ALLOC	(UINT32_C(0x90))
-- 
1.9.1