[dpdk-dev] [PATCH v6 21/38] bnxt: add HWRM API to configure RSS

[Stephen Hurd <stephen.hurd@broadcom.com>]

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

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.

New HWRM call:
bnxt_hwrm_vnic_rss_cfg:
	Used to enable RSS configuration of the VNIC.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: David Christensen <david.christensen@broadcom.com>

--
v5:
Expand the commit log
Reorder footer
---
 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 5a5063f..29b0729 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -646,6 +646,30 @@ 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 fbb8aba..8c7b939 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -68,6 +68,8 @@ 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