[dpdk-dev] [PATCH v6 20/38] bnxt: add API to allow configuration of vnic

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

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

This patch adds APIs to allow configuration of a VNIC.
The functions alloc and free the Class of Service or COS and
Load Balance context corresponding to the VNIC in the chip.

New HWRM calls:
bnxt_hwrm_vnic_ctx_alloc:
	Used to allocate COS/Load Balance context of VNIC
bnxt_hwrm_vnic_ctx_free:
	Used to free COS/Load Balance context of 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>

--
v4:
Address review comments and fix issues pointed out by checkpatch.

v5:
More description in commit log
Reorder footer
---
 drivers/net/bnxt/bnxt_hwrm.c           |  38 ++++++++
 drivers/net/bnxt/bnxt_hwrm.h           |   2 +
 drivers/net/bnxt/hsi_struct_def_dpdk.h | 153 +++++++++++++++++++++++++++++++++
 3 files changed, 193 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 0c54129..5a5063f 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -587,6 +587,44 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 	return rc;
 }
 
+int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+	int rc = 0;
+	struct hwrm_vnic_rss_cos_lb_ctx_alloc_input req = {.req_type = 0 };
+	struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp =
+						bp->hwrm_cmd_resp_addr;
+
+	HWRM_PREP(req, VNIC_RSS_COS_LB_CTX_ALLOC, -1, resp);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	vnic->fw_rss_cos_lb_ctx = rte_le_to_cpu_16(resp->rss_cos_lb_ctx_id);
+
+	return rc;
+}
+
+int bnxt_hwrm_vnic_ctx_free(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+	int rc = 0;
+	struct hwrm_vnic_rss_cos_lb_ctx_free_input req = {.req_type = 0 };
+	struct hwrm_vnic_rss_cos_lb_ctx_free_output *resp =
+						bp->hwrm_cmd_resp_addr;
+
+	HWRM_PREP(req, VNIC_RSS_COS_LB_CTX_FREE, -1, resp);
+
+	req.rss_cos_lb_ctx_id = rte_cpu_to_le_16(vnic->fw_rss_cos_lb_ctx);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	vnic->fw_rss_cos_lb_ctx = INVALID_HW_RING_ID;
+
+	return rc;
+}
+
 int bnxt_hwrm_vnic_free(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 {
 	int rc = 0;
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index cdaa295..fbb8aba 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -65,6 +65,8 @@ int bnxt_hwrm_ver_get(struct bnxt *bp);
 
 int bnxt_hwrm_vnic_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 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_clear_all_hwrm_stat_ctxs(struct bnxt *bp);
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index ef0b37a..6412df2 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -92,6 +92,8 @@ 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_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))
 #define HWRM_CFA_L2_FILTER_FREE		(UINT32_C(0x91))
 #define HWRM_CFA_L2_FILTER_CFG		(UINT32_C(0x92))
@@ -3576,6 +3578,157 @@ struct hwrm_vnic_rss_cfg_output {
 	uint8_t valid;
 } __attribute__((packed));
 
+/* Input (16 bytes) */
+struct hwrm_vnic_rss_cos_lb_ctx_alloc_input {
+	/*
+	 * This value indicates what type of request this is. The format for the
+	 * rest of the command is determined by this field.
+	 */
+	uint16_t req_type;
+
+	/*
+	 * This value indicates the what completion ring the request will be
+	 * optionally completed on. If the value is -1, then no CR completion
+	 * will be generated. Any other value must be a valid CR ring_id value
+	 * for this function.
+	 */
+	uint16_t cmpl_ring;
+
+	/* This value indicates the command sequence number. */
+	uint16_t seq_id;
+
+	/*
+	 * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+	 * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+	 */
+	uint16_t target_id;
+
+	/*
+	 * This is the host address where the response will be written when the
+	 * request is complete. This area must be 16B aligned and must be
+	 * cleared to zero before the request is made.
+	 */
+	uint64_t resp_addr;
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+
+struct hwrm_vnic_rss_cos_lb_ctx_alloc_output {
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in parameters,
+	 * and fail the call with an error when appropriate
+	 */
+	uint16_t error_code;
+
+	/* This field returns the type of original request. */
+	uint16_t req_type;
+
+	/* This field provides original sequence number of the command. */
+	uint16_t seq_id;
+
+	/*
+	 * This field is the length of the response in bytes. The last byte of
+	 * the response is a valid flag that will read as '1' when the command
+	 * has been completely written to memory.
+	 */
+	uint16_t resp_len;
+
+	/* rss_cos_lb_ctx_id is 16 b */
+	uint16_t rss_cos_lb_ctx_id;
+
+	uint8_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+	uint8_t unused_3;
+	uint8_t unused_4;
+
+	/*
+	 * This field is used in Output records to indicate that the output is
+	 * completely written to RAM. This field should be read as '1' to
+	 * indicate that the output has been completely written. When writing a
+	 * command completion or response to an internal processor, the order of
+	 * writes has to be such that this field is written last.
+	 */
+	uint8_t valid;
+} __attribute__((packed));
+
+/* hwrm_vnic_rss_cos_lb_ctx_free */
+/* Description: This function can be used to free COS/Load Balance context. */
+/* Input (24 bytes) */
+
+struct hwrm_vnic_rss_cos_lb_ctx_free_input {
+	/*
+	 * This value indicates what type of request this is. The format for the
+	 * rest of the command is determined by this field.
+	 */
+	uint16_t req_type;
+
+	/*
+	 * This value indicates the what completion ring the request will be
+	 * optionally completed on. If the value is -1, then no CR completion
+	 * will be generated. Any other value must be a valid CR ring_id value
+	 * for this function.
+	 */
+	uint16_t cmpl_ring;
+
+	/* This value indicates the command sequence number. */
+	uint16_t seq_id;
+
+	/*
+	 * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+	 * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+	 */
+	uint16_t target_id;
+
+	/*
+	 * This is the host address where the response will be written when the
+	 * request is complete. This area must be 16B aligned and must be
+	 * cleared to zero before the request is made.
+	 */
+	uint64_t resp_addr;
+
+	/* rss_cos_lb_ctx_id is 16 b */
+	uint16_t rss_cos_lb_ctx_id;
+
+	uint16_t unused_0[3];
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+struct hwrm_vnic_rss_cos_lb_ctx_free_output {
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in parameters,
+	 * and fail the call with an error when appropriate
+	 */
+	uint16_t error_code;
+
+	/* This field returns the type of original request. */
+	uint16_t req_type;
+
+	/* This field provides original sequence number of the command. */
+	uint16_t seq_id;
+
+	/*
+	 * This field is the length of the response in bytes. The last byte of
+	 * the response is a valid flag that will read as '1' when the command
+	 * has been completely written to memory.
+	 */
+	uint16_t resp_len;
+
+	uint32_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+	uint8_t unused_3;
+
+	/*
+	 * This field is used in Output records to indicate that the output is
+	 * completely written to RAM. This field should be read as '1' to
+	 * indicate that the output has been completely written. When writing a
+	 * command completion or response to an internal processor, the order of
+	 * writes has to be such that this field is written last.
+	 */
+	uint8_t valid;
+} __attribute__((packed));
+
 /* Output (32 bytes) */
 struct hwrm_queue_qportcfg_output {
 	/*
-- 
1.9.1