[dpdk-dev] [PATCH 26/40] bnxt: add HWRM stat context free function

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

Add function and associated structures and definitions as well as
some convenienct functions for manipulating the state of the entire
function.

Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c           | 219 +++++++++++++++++++++++++++++++++
 drivers/net/bnxt/bnxt_hwrm.h           |  10 ++
 drivers/net/bnxt/hsi_struct_def_dpdk.h |  81 ++++++++++++
 3 files changed, 310 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 027a2e8..b5bc473 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -43,8 +43,10 @@
 #include "bnxt_filter.h"
 #include "bnxt_hwrm.h"
 #include "bnxt_rxq.h"
+#include "bnxt_rxr.h"
 #include "bnxt_ring.h"
 #include "bnxt_txq.h"
+#include "bnxt_txr.h"
 #include "bnxt_vnic.h"
 #include "hsi_struct_def_dpdk.h"
 
@@ -206,6 +208,49 @@ int bnxt_hwrm_clear_filter(struct bnxt *bp,
 	return 0;
 }
 
+int bnxt_hwrm_set_filter(struct bnxt *bp,
+			 struct bnxt_vnic_info *vnic,
+			 struct bnxt_filter_info *filter)
+{
+	int rc = 0;
+	struct hwrm_cfa_l2_filter_alloc_input req = {.req_type = 0 };
+	struct hwrm_cfa_l2_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+	uint32_t enables = 0;
+
+	HWRM_PREP(req, CFA_L2_FILTER_ALLOC, -1, resp);
+
+	req.flags = rte_cpu_to_le_32(filter->flags);
+
+	enables = filter->enables |
+	      HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_DST_ID;
+	req.dst_id = rte_cpu_to_le_16(vnic->fw_vnic_id);
+
+	if (enables &
+	    HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR)
+		memcpy(req.l2_addr, filter->l2_addr,
+		       ETHER_ADDR_LEN);
+	if (enables &
+	    HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR_MASK)
+		memcpy(req.l2_addr_mask, filter->l2_addr_mask,
+		       ETHER_ADDR_LEN);
+	if (enables &
+	    HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_OVLAN)
+		req.l2_ovlan = filter->l2_ovlan;
+	if (enables &
+	    HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_OVLAN_MASK)
+		req.l2_ovlan_mask = filter->l2_ovlan_mask;
+
+	req.enables = rte_cpu_to_le_32(enables);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	filter->fw_l2_filter_id = rte_le_to_cpu_64(resp->l2_filter_id);
+
+	return rc;
+}
+
 int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, void *fwd_cmd)
 {
 	int rc;
@@ -699,6 +744,28 @@ int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp,
 	return rc;
 }
 
+int bnxt_hwrm_stat_ctx_free(struct bnxt *bp,
+			    struct bnxt_cp_ring_info *cpr, unsigned idx)
+{
+	int rc;
+	struct hwrm_stat_ctx_free_input req = {.req_type = 0 };
+	struct hwrm_stat_ctx_free_output *resp = bp->hwrm_cmd_resp_addr;
+
+	HWRM_PREP(req, STAT_CTX_FREE, -1, resp);
+
+	req.stat_ctx_id = rte_cpu_to_le_16(cpr->hw_stats_ctx_id);
+	req.seq_id = rte_cpu_to_le_16(bp->hwrm_cmd_seq++);
+
+	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+	HWRM_CHECK_RESULT;
+
+	cpr->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
+	bp->grp_info[idx].fw_stats_ctx = cpr->hw_stats_ctx_id;
+
+	return rc;
+}
+
 int bnxt_hwrm_vnic_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 {
 	int rc = 0, i, j;
@@ -875,6 +942,28 @@ int bnxt_clear_all_hwrm_stat_ctxs(struct bnxt *bp)
 	return 0;
 }
 
+int bnxt_free_all_hwrm_stat_ctxs(struct bnxt *bp)
+{
+	int rc;
+	unsigned i;
+	struct bnxt_cp_ring_info *cpr;
+
+	for (i = 0; i < bp->rx_cp_nr_rings + bp->tx_cp_nr_rings; i++) {
+		unsigned idx = i + 1;
+
+		if (i >= bp->rx_cp_nr_rings)
+			cpr = bp->tx_queues[i - bp->rx_cp_nr_rings]->cp_ring;
+		else
+			cpr = bp->rx_queues[i]->cp_ring;
+		if (cpr->hw_stats_ctx_id != HWRM_NA_SIGNATURE) {
+			rc = bnxt_hwrm_stat_ctx_free(bp, cpr, idx);
+			if (rc)
+				return rc;
+		}
+	}
+	return 0;
+}
+
 int bnxt_alloc_all_hwrm_stat_ctxs(struct bnxt *bp)
 {
 	unsigned i;
@@ -925,6 +1014,84 @@ int bnxt_free_all_hwrm_ring_grps(struct bnxt *bp)
 	return rc;
 }
 
+static void bnxt_free_cp_ring(struct bnxt *bp,
+			      struct bnxt_cp_ring_info *cpr, unsigned idx)
+{
+	struct bnxt_ring_struct *cp_ring = cpr->cp_ring_struct;
+
+	bnxt_hwrm_ring_free(bp, cp_ring,
+			HWRM_RING_FREE_INPUT_RING_TYPE_CMPL);
+	cp_ring->fw_ring_id = INVALID_HW_RING_ID;
+	bp->grp_info[idx].cp_fw_ring_id = INVALID_HW_RING_ID;
+	memset(cpr->cp_desc_ring, 0, cpr->cp_ring_struct->ring_size *
+			sizeof(*cpr->cp_desc_ring));
+	cpr->cp_raw_cons = 0;
+}
+
+int bnxt_free_all_hwrm_rings(struct bnxt *bp)
+{
+	unsigned i;
+	int rc = 0;
+
+	for (i = 0; i < bp->tx_cp_nr_rings; i++) {
+		struct bnxt_tx_queue *txq = bp->tx_queues[i];
+		struct bnxt_tx_ring_info *txr = txq->tx_ring;
+		struct bnxt_ring_struct *ring = txr->tx_ring_struct;
+		struct bnxt_cp_ring_info *cpr = txq->cp_ring;
+		unsigned idx = bp->rx_cp_nr_rings + i + 1;
+
+		if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+			bnxt_hwrm_ring_free(bp, ring,
+					HWRM_RING_FREE_INPUT_RING_TYPE_TX);
+			ring->fw_ring_id = INVALID_HW_RING_ID;
+			memset(txr->tx_desc_ring, 0,
+					txr->tx_ring_struct->ring_size *
+					sizeof(*txr->tx_desc_ring));
+			memset(txr->tx_buf_ring, 0,
+					txr->tx_ring_struct->ring_size *
+					sizeof(*txr->tx_buf_ring));
+			txr->tx_prod = 0;
+			txr->tx_cons = 0;
+		}
+		if (cpr->cp_ring_struct->fw_ring_id != INVALID_HW_RING_ID)
+			bnxt_free_cp_ring(bp, cpr, idx);
+	}
+
+	for (i = 0; i < bp->rx_cp_nr_rings; i++) {
+		struct bnxt_rx_queue *rxq = bp->rx_queues[i];
+		struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
+		struct bnxt_ring_struct *ring = rxr->rx_ring_struct;
+		struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
+		unsigned idx = i + 1;
+
+		if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+			bnxt_hwrm_ring_free(bp, ring,
+					HWRM_RING_FREE_INPUT_RING_TYPE_RX);
+			ring->fw_ring_id = INVALID_HW_RING_ID;
+			bp->grp_info[idx].rx_fw_ring_id = INVALID_HW_RING_ID;
+			memset(rxr->rx_desc_ring, 0,
+					rxr->rx_ring_struct->ring_size *
+					sizeof(*rxr->rx_desc_ring));
+			memset(rxr->rx_buf_ring, 0,
+					rxr->rx_ring_struct->ring_size *
+					sizeof(*rxr->rx_buf_ring));
+			rxr->rx_prod = 0;
+		}
+		if (cpr->cp_ring_struct->fw_ring_id != INVALID_HW_RING_ID)
+			bnxt_free_cp_ring(bp, cpr, idx);
+	}
+
+	/* Default completion ring */
+	{
+		struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+
+		if (cpr->cp_ring_struct->fw_ring_id != INVALID_HW_RING_ID)
+			bnxt_free_cp_ring(bp, cpr, 0);
+	}
+
+	return rc;
+}
+
 int bnxt_alloc_all_hwrm_ring_grps(struct bnxt *bp)
 {
 	uint16_t i;
@@ -972,6 +1139,58 @@ int bnxt_alloc_hwrm_resources(struct bnxt *bp)
 	return 0;
 }
 
+int bnxt_clear_hwrm_vnic_filters(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+	struct bnxt_filter_info *filter;
+	int rc = 0;
+
+	STAILQ_FOREACH(filter, &vnic->filter, next) {
+		rc = bnxt_hwrm_clear_filter(bp, filter);
+		if (rc)
+			break;
+	}
+	return rc;
+}
+
+int bnxt_set_hwrm_vnic_filters(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+	struct bnxt_filter_info *filter;
+	int rc = 0;
+
+	STAILQ_FOREACH(filter, &vnic->filter, next) {
+		rc = bnxt_hwrm_set_filter(bp, vnic, filter);
+		if (rc)
+			break;
+	}
+	return rc;
+}
+
+void bnxt_free_all_hwrm_resources(struct bnxt *bp)
+{
+	struct bnxt_vnic_info *vnic;
+	unsigned i;
+
+	if (bp->vnic_info == NULL)
+		return;
+
+	vnic = &bp->vnic_info[0];
+	bnxt_hwrm_cfa_l2_clear_rx_mask(bp, vnic);
+
+	/* VNIC resources */
+	for (i = 0; i < bp->nr_vnics; i++) {
+		struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+
+		bnxt_clear_hwrm_vnic_filters(bp, vnic);
+
+		bnxt_hwrm_vnic_ctx_free(bp, vnic);
+		bnxt_hwrm_vnic_free(bp, vnic);
+	}
+	/* Ring resources */
+	bnxt_free_all_hwrm_rings(bp);
+	bnxt_free_all_hwrm_ring_grps(bp);
+	bnxt_free_all_hwrm_stat_ctxs(bp);
+}
+
 static uint16_t bnxt_parse_eth_link_duplex(uint32_t conf_link_speed)
 {
 	uint8_t hw_link_duplex = HWRM_PORT_PHY_CFG_INPUT_AUTO_DUPLEX_BOTH;
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index b65d692..b7a3f24 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -47,6 +47,9 @@ int bnxt_hwrm_cfa_l2_clear_rx_mask(struct bnxt *bp,
 int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 int bnxt_hwrm_clear_filter(struct bnxt *bp,
 			   struct bnxt_filter_info *filter);
+int bnxt_hwrm_set_filter(struct bnxt *bp,
+			 struct bnxt_vnic_info *vnic,
+			 struct bnxt_filter_info *filter);
 
 int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, void *fwd_cmd);
 
@@ -70,6 +73,8 @@ int bnxt_hwrm_ring_grp_free(struct bnxt *bp, unsigned idx);
 int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr);
 int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp,
 			     struct bnxt_cp_ring_info *cpr, unsigned idx);
+int bnxt_hwrm_stat_ctx_free(struct bnxt *bp,
+			    struct bnxt_cp_ring_info *cpr, unsigned idx);
 
 int bnxt_hwrm_ver_get(struct bnxt *bp);
 
@@ -83,8 +88,13 @@ int bnxt_hwrm_vnic_rss_cfg(struct bnxt *bp,
 
 int bnxt_alloc_all_hwrm_stat_ctxs(struct bnxt *bp);
 int bnxt_clear_all_hwrm_stat_ctxs(struct bnxt *bp);
+int bnxt_free_all_hwrm_stat_ctxs(struct bnxt *bp);
+int bnxt_free_all_hwrm_rings(struct bnxt *bp);
 int bnxt_free_all_hwrm_ring_grps(struct bnxt *bp);
 int bnxt_alloc_all_hwrm_ring_grps(struct bnxt *bp);
+int bnxt_set_hwrm_vnic_filters(struct bnxt *bp, struct bnxt_vnic_info *vnic);
+int bnxt_clear_hwrm_vnic_filters(struct bnxt *bp, struct bnxt_vnic_info *vnic);
+void bnxt_free_all_hwrm_resources(struct bnxt *bp);
 void bnxt_free_hwrm_resources(struct bnxt *bp);
 int bnxt_alloc_hwrm_resources(struct bnxt *bp);
 int bnxt_set_hwrm_link_config(struct bnxt *bp, bool link_up);
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 12a28ba..6644c8e 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -104,6 +104,7 @@ typedef struct ctx_hw_stats64 {
 #define HWRM_CFA_L2_FILTER_CFG		(UINT32_C(0x92))
 #define HWRM_CFA_L2_SET_RX_MASK		(UINT32_C(0x93))
 #define HWRM_STAT_CTX_ALLOC		(UINT32_C(0xb0))
+#define HWRM_STAT_CTX_FREE		(UINT32_C(0xb1))
 #define HWRM_STAT_CTX_CLR_STATS		(UINT32_C(0xb3))
 #define HWRM_EXEC_FWD_RESP		(UINT32_C(0xd0))
 
@@ -3888,6 +3889,86 @@ struct hwrm_stat_ctx_clr_stats_output {
 	uint8_t valid;
 } __attribute__((packed));
 
+/* hwrm_stat_ctx_free */
+/* Description: This command is used to free a stat context. */
+/* Input (24 bytes) */
+
+struct hwrm_stat_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;
+
+	/* ID of the statistics context that is being queried. */
+	uint32_t stat_ctx_id;
+
+	uint32_t unused_0;
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+
+struct hwrm_stat_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;
+
+	/* This is the statistics context ID value. */
+	uint32_t stat_ctx_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_alloc */
 /*
  * Description: This VNIC is a resource in the RX side of the chip that is used
-- 
1.9.1