[dpdk-dev] [PATCH v2 17/40] bnxt: add HWRM vnic alloc function

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

This requires a group info array in struct bnxt, so add that, save
the max size from the func_qcap response, and alloc/free in init/uninit

Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt.h                |  2 +
 drivers/net/bnxt/bnxt_hwrm.c           | 33 ++++++++++++
 drivers/net/bnxt/bnxt_hwrm.h           |  2 +
 drivers/net/bnxt/hsi_struct_def_dpdk.h | 99 ++++++++++++++++++++++++++++++++++
 4 files changed, 136 insertions(+)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 96f162e..d258e2b 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -140,6 +140,8 @@ struct bnxt {
 	/* Default completion ring */
 	struct bnxt_cp_ring_info	*def_cp_ring;
 
+	uint32_t		max_ring_grps;
+	struct bnxt_ring_grp_info	*grp_info;
 	unsigned		nr_vnics;
 
 	struct bnxt_vnic_info	*vnic_info;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 922c92a..ecd4718 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -43,7 +43,9 @@
 #include "bnxt_filter.h"
 #include "bnxt_hwrm.h"
 #include "bnxt_rxq.h"
+#include "bnxt_ring.h"
 #include "bnxt_txq.h"
+#include "bnxt_vnic.h"
 #include "hsi_struct_def_dpdk.h"
 
 #define HWRM_CMD_TIMEOUT		2000
@@ -191,6 +193,7 @@ int bnxt_hwrm_func_qcaps(struct bnxt *bp)
 
 	HWRM_CHECK_RESULT;
 
+	bp->max_ring_grps = rte_le_to_cpu_32(resp->max_hw_ring_grps);
 	if (BNXT_PF(bp)) {
 		struct bnxt_pf_info *pf = &bp->pf;
 
@@ -477,6 +480,36 @@ int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
 	return rc;
 }
 
+int bnxt_hwrm_vnic_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+	int rc = 0, i, j;
+	struct hwrm_vnic_alloc_input req = {.req_type = 0 };
+	struct hwrm_vnic_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+	/* map ring groups to this vnic */
+	for (i = vnic->start_grp_id, j = 0; i <= vnic->end_grp_id; i++, j++) {
+		if (bp->grp_info[i].fw_grp_id == (uint16_t)HWRM_NA_SIGNATURE) {
+			RTE_LOG(ERR, PMD,
+				"Not enough ring groups avail:%x req:%x\n", j,
+				(vnic->end_grp_id - vnic->start_grp_id) + 1);
+			break;
+		}
+		vnic->fw_grp_ids[j] = bp->grp_info[i].fw_grp_id;
+	}
+
+	vnic->fw_rss_cos_lb_ctx = (uint16_t)HWRM_NA_SIGNATURE;
+	vnic->ctx_is_rss_cos_lb = HW_CONTEXT_NONE;
+
+	HWRM_PREP(req, VNIC_ALLOC, -1, resp);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	vnic->fw_vnic_id = rte_le_to_cpu_16(resp->vnic_id);
+	return rc;
+}
+
 /*
  * HWRM utility functions
  */
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index 4fa94aa..62dc801 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -59,6 +59,8 @@ int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr);
 
 int bnxt_hwrm_ver_get(struct bnxt *bp);
 
+int bnxt_hwrm_vnic_alloc(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);
 int bnxt_alloc_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 9c82d13..ba0e054 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -89,6 +89,7 @@ typedef struct ctx_hw_stats64 {
 #define HWRM_FUNC_DRV_RGTR		(UINT32_C(0x1d))
 #define HWRM_PORT_PHY_CFG		(UINT32_C(0x20))
 #define HWRM_QUEUE_QPORTCFG		(UINT32_C(0x30))
+#define HWRM_VNIC_ALLOC			(UINT32_C(0x40))
 #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))
@@ -3168,6 +3169,104 @@ struct hwrm_stat_ctx_clr_stats_output {
 	uint8_t valid;
 } __attribute__((packed));
 
+/* hwrm_vnic_alloc */
+/*
+ * Description: This VNIC is a resource in the RX side of the chip that is used
+ * to represent a virtual host "interface". # At the time of VNIC allocation or
+ * configuration, the function can specify whether it wants the requested VNIC
+ * to be the default VNIC for the function or not. # If a function requests
+ * allocation of a VNIC for the first time and a VNIC is successfully allocated
+ * by the HWRM, then the HWRM shall make the allocated VNIC as the default VNIC
+ * for that function. # The default VNIC shall be used for the default action
+ * for a partition or function. # For each VNIC allocated on a function, a
+ * mapping on the RX side to map the allocated VNIC to source virtual interface
+ * shall be performed by the HWRM. This should be hidden to the function driver
+ * requesting the VNIC allocation. This enables broadcast/multicast replication
+ * with source knockout. # If multicast replication with source knockout is
+ * enabled, then the internal VNIC to SVIF mapping data structures shall be
+ * programmed at the time of VNIC allocation.
+ */
+
+/* Input (24 bytes) */
+struct hwrm_vnic_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;
+
+	/*
+	 * When this bit is '1', this VNIC is requested to be the default VNIC
+	 * for this function.
+	 */
+	#define HWRM_VNIC_ALLOC_INPUT_FLAGS_DEFAULT                UINT32_C(0x1)
+	uint32_t flags;
+
+	uint32_t unused_0;
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+struct hwrm_vnic_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;
+
+	/* Logical vnic ID */
+	uint32_t vnic_id;
+
+	uint8_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+
+	/*
+	 * 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_cfg */
 /* Description: This function is used to enable RSS configuration. */
 
-- 
1.9.1