From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Wed, 15 Jun 2016 21:23:04 +0000 (-0700)
Subject: net/bnxt: get device infos
X-Git-Tag: spdx-start~6498
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=0a6d2a720078cd85d5a4a20d0f9ea35eaf6c2c58;p=dpdk.git

net/bnxt: get device infos

Gets device info from the bp structure filled in the init() function.

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>
---

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index ed057efcf0..f8707b274d 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -42,6 +42,9 @@
 #include <rte_lcore.h>
 #include <rte_spinlock.h>
 
+#define BNXT_MAX_MTU		9000
+#define VLAN_TAG_SIZE		4
+
 struct bnxt_vf_info {
 	uint16_t		fw_fid;
 	uint8_t			mac_addr[ETHER_ADDR_LEN];
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 26e6447807..a8a9912eab 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -60,11 +60,106 @@ static void bnxt_dev_close_op(struct rte_eth_dev *eth_dev)
 	bnxt_free_hwrm_resources(bp);
 }
 
+/*
+ * Device configuration and status function
+ */
+
+static void bnxt_dev_info_get_op(struct rte_eth_dev *eth_dev,
+				  struct rte_eth_dev_info *dev_info)
+{
+	struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+	uint16_t max_vnics, i, j, vpool, vrxq;
+
+	/* MAC Specifics */
+	dev_info->max_mac_addrs = MAX_NUM_MAC_ADDR;
+	dev_info->max_hash_mac_addrs = 0;
+
+	/* PF/VF specifics */
+	if (BNXT_PF(bp)) {
+		dev_info->max_rx_queues = bp->pf.max_rx_rings;
+		dev_info->max_tx_queues = bp->pf.max_tx_rings;
+		dev_info->max_vfs = bp->pf.active_vfs;
+		dev_info->reta_size = bp->pf.max_rsscos_ctx;
+		max_vnics = bp->pf.max_vnics;
+	} else {
+		dev_info->max_rx_queues = bp->vf.max_rx_rings;
+		dev_info->max_tx_queues = bp->vf.max_tx_rings;
+		dev_info->reta_size = bp->vf.max_rsscos_ctx;
+		max_vnics = bp->vf.max_vnics;
+	}
+
+	/* Fast path specifics */
+	dev_info->min_rx_bufsize = 1;
+	dev_info->max_rx_pktlen = BNXT_MAX_MTU + ETHER_HDR_LEN + ETHER_CRC_LEN
+				  + VLAN_TAG_SIZE;
+	dev_info->rx_offload_capa = 0;
+	dev_info->tx_offload_capa = DEV_TX_OFFLOAD_IPV4_CKSUM |
+					DEV_TX_OFFLOAD_TCP_CKSUM |
+					DEV_TX_OFFLOAD_UDP_CKSUM |
+					DEV_TX_OFFLOAD_TCP_TSO;
+
+	/* *INDENT-OFF* */
+	dev_info->default_rxconf = (struct rte_eth_rxconf) {
+		.rx_thresh = {
+			.pthresh = 8,
+			.hthresh = 8,
+			.wthresh = 0,
+		},
+		.rx_free_thresh = 32,
+		.rx_drop_en = 0,
+	};
+
+	dev_info->default_txconf = (struct rte_eth_txconf) {
+		.tx_thresh = {
+			.pthresh = 32,
+			.hthresh = 0,
+			.wthresh = 0,
+		},
+		.tx_free_thresh = 32,
+		.tx_rs_thresh = 32,
+		.txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS |
+			     ETH_TXQ_FLAGS_NOOFFLOADS,
+	};
+	/* *INDENT-ON* */
+
+	/*
+	 * TODO: default_rxconf, default_txconf, rx_desc_lim, and tx_desc_lim
+	 *       need further investigation.
+	 */
+
+	/* VMDq resources */
+	vpool = 64; /* ETH_64_POOLS */
+	vrxq = 128; /* ETH_VMDQ_DCB_NUM_QUEUES */
+	for (i = 0; i < 4; vpool >>= 1, i++) {
+		if (max_vnics > vpool) {
+			for (j = 0; j < 5; vrxq >>= 1, j++) {
+				if (dev_info->max_rx_queues > vrxq) {
+					if (vpool > vrxq)
+						vpool = vrxq;
+					goto found;
+				}
+			}
+			/* Not enough resources to support VMDq */
+			break;
+		}
+	}
+	/* Not enough resources to support VMDq */
+	vpool = 0;
+	vrxq = 0;
+found:
+	dev_info->max_vmdq_pools = vpool;
+	dev_info->vmdq_queue_num = vrxq;
+
+	dev_info->vmdq_pool_base = 0;
+	dev_info->vmdq_queue_base = 0;
+}
+
 /*
  * Initialization
  */
 
 static struct eth_dev_ops bnxt_dev_ops = {
+	.dev_infos_get = bnxt_dev_info_get_op,
 	.dev_close = bnxt_dev_close_op,
 };
 
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 8aba8cdbab..3eabf0c563 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -83,7 +83,7 @@ static int bnxt_hwrm_send_message_locked(struct bnxt *bp, void *msg,
 		/* Sanity check on the resp->resp_len */
 		rte_rmb();
 		if (resp->resp_len && resp->resp_len <=
-		    bp->max_resp_len) {
+				bp->max_resp_len) {
 			/* Last byte of resp contains the valid key */
 			valid = (uint8_t *)resp + resp->resp_len - 1;
 			if (*valid == HWRM_RESP_VALID_KEY)