--- /dev/null
+/* Broadcom NetXtreme-C/E network driver.
+ *
+ * Copyright (c) 2014-2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+
+#include <linux/stringify.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <asm/byteorder.h>
+#include <asm/page.h>
+#include <linux/time.h>
+#include <linux/mii.h>
+#include <linux/if.h>
+#include <linux/if_vlan.h>
+#include <net/ip.h>
+#include <net/tcp.h>
+#include <net/udp.h>
+#include <net/checksum.h>
+#include <net/ip6_checksum.h>
+#if defined(CONFIG_VXLAN) || defined(CONFIG_VXLAN_MODULE)
+#include <net/vxlan.h>
+#endif
+#ifdef CONFIG_NET_RX_BUSY_POLL
+#include <net/busy_poll.h>
+#endif
+#include <linux/workqueue.h>
+#include <linux/prefetch.h>
+#include <linux/cache.h>
+#include <linux/log2.h>
+#include <linux/aer.h>
+#include <linux/bitmap.h>
+#include <linux/cpu_rmap.h>
+
+#include "bnxt_hsi.h"
+#include "bnxt.h"
+#include "bnxt_sriov.h"
+#include "bnxt_ethtool.h"
+
+#define BNXT_TX_TIMEOUT (5 * HZ)
+
+static const char version[] =
+ "Broadcom NetXtreme-C/E driver " DRV_MODULE_NAME " v" DRV_MODULE_VERSION "\n";
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Broadcom BCM573xx network driver");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+#define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN)
+#define BNXT_RX_DMA_OFFSET NET_SKB_PAD
+#define BNXT_RX_COPY_THRESH 256
+
+#define BNXT_TX_PUSH_THRESH 92
+
+enum board_idx {
+ BCM57302,
+ BCM57304,
+ BCM57404,
+ BCM57406,
+ BCM57304_VF,
+ BCM57404_VF,
+};
+
+/* indexed by enum above */
+static const struct {
+ char *name;
+} board_info[] = {
+ { "Broadcom BCM57302 NetXtreme-C Single-port 10Gb/25Gb/40Gb/50Gb Ethernet" },
+ { "Broadcom BCM57304 NetXtreme-C Dual-port 10Gb/25Gb/40Gb/50Gb Ethernet" },
+ { "Broadcom BCM57404 NetXtreme-E Dual-port 10Gb/25Gb Ethernet" },
+ { "Broadcom BCM57406 NetXtreme-E Dual-port 10Gb Ethernet" },
+ { "Broadcom BCM57304 NetXtreme-C Ethernet Virtual Function" },
+ { "Broadcom BCM57404 NetXtreme-E Ethernet Virtual Function" },
+};
+
+static const struct pci_device_id bnxt_pci_tbl[] = {
+ { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 },
+ { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 },
+ { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 },
+ { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 },
+#ifdef CONFIG_BNXT_SRIOV
+ { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = BCM57304_VF },
+ { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = BCM57404_VF },
+#endif
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl);
+
+static const u16 bnxt_vf_req_snif[] = {
+ HWRM_FUNC_CFG,
+ HWRM_PORT_PHY_QCFG,
+ HWRM_CFA_L2_FILTER_ALLOC,
+};
+
+static bool bnxt_vf_pciid(enum board_idx idx)
+{
+ return (idx == BCM57304_VF || idx == BCM57404_VF);
+}
+
+#define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
+#define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
+#define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS)
+
+#define BNXT_CP_DB_REARM(db, raw_cons) \
+ writel(DB_CP_REARM_FLAGS | RING_CMP(raw_cons), db)
+
+#define BNXT_CP_DB(db, raw_cons) \
+ writel(DB_CP_FLAGS | RING_CMP(raw_cons), db)
+
+#define BNXT_CP_DB_IRQ_DIS(db) \
+ writel(DB_CP_IRQ_DIS_FLAGS, db)
+
+static inline u32 bnxt_tx_avail(struct bnxt *bp, struct bnxt_tx_ring_info *txr)
+{
+ /* Tell compiler to fetch tx indices from memory. */
+ barrier();
+
+ return bp->tx_ring_size -
+ ((txr->tx_prod - txr->tx_cons) & bp->tx_ring_mask);
+}
+
+static const u16 bnxt_lhint_arr[] = {
+ TX_BD_FLAGS_LHINT_512_AND_SMALLER,
+ TX_BD_FLAGS_LHINT_512_TO_1023,
+ TX_BD_FLAGS_LHINT_1024_TO_2047,
+ TX_BD_FLAGS_LHINT_1024_TO_2047,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+ TX_BD_FLAGS_LHINT_2048_AND_LARGER,
+};
+
+static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ struct tx_bd *txbd;
+ struct tx_bd_ext *txbd1;
+ struct netdev_queue *txq;
+ int i;
+ dma_addr_t mapping;
+ unsigned int length, pad = 0;
+ u32 len, free_size, vlan_tag_flags, cfa_action, flags;
+ u16 prod, last_frag;
+ struct pci_dev *pdev = bp->pdev;
+ struct bnxt_napi *bnapi;
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_sw_tx_bd *tx_buf;
+
+ i = skb_get_queue_mapping(skb);
+ if (unlikely(i >= bp->tx_nr_rings)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ bnapi = bp->bnapi[i];
+ txr = &bnapi->tx_ring;
+ txq = netdev_get_tx_queue(dev, i);
+ prod = txr->tx_prod;
+
+ free_size = bnxt_tx_avail(bp, txr);
+ if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) {
+ netif_tx_stop_queue(txq);
+ return NETDEV_TX_BUSY;
+ }
+
+ length = skb->len;
+ len = skb_headlen(skb);
+ last_frag = skb_shinfo(skb)->nr_frags;
+
+ txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
+
+ txbd->tx_bd_opaque = prod;
+
+ tx_buf = &txr->tx_buf_ring[prod];
+ tx_buf->skb = skb;
+ tx_buf->nr_frags = last_frag;
+
+ vlan_tag_flags = 0;
+ cfa_action = 0;
+ if (skb_vlan_tag_present(skb)) {
+ vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN |
+ skb_vlan_tag_get(skb);
+ /* Currently supports 8021Q, 8021AD vlan offloads
+ * QINQ1, QINQ2, QINQ3 vlan headers are deprecated
+ */
+ if (skb->vlan_proto == htons(ETH_P_8021Q))
+ vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT;
+ }
+
+ if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh) {
+ struct tx_push_bd *push = txr->tx_push;
+ struct tx_bd *tx_push = &push->txbd1;
+ struct tx_bd_ext *tx_push1 = &push->txbd2;
+ void *pdata = tx_push1 + 1;
+ int j;
+
+ /* Set COAL_NOW to be ready quickly for the next push */
+ tx_push->tx_bd_len_flags_type =
+ cpu_to_le32((length << TX_BD_LEN_SHIFT) |
+ TX_BD_TYPE_LONG_TX_BD |
+ TX_BD_FLAGS_LHINT_512_AND_SMALLER |
+ TX_BD_FLAGS_COAL_NOW |
+ TX_BD_FLAGS_PACKET_END |
+ (2 << TX_BD_FLAGS_BD_CNT_SHIFT));
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ tx_push1->tx_bd_hsize_lflags =
+ cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
+ else
+ tx_push1->tx_bd_hsize_lflags = 0;
+
+ tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
+ tx_push1->tx_bd_cfa_action = cpu_to_le32(cfa_action);
+
+ skb_copy_from_linear_data(skb, pdata, len);
+ pdata += len;
+ for (j = 0; j < last_frag; j++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
+ void *fptr;
+
+ fptr = skb_frag_address_safe(frag);
+ if (!fptr)
+ goto normal_tx;
+
+ memcpy(pdata, fptr, skb_frag_size(frag));
+ pdata += skb_frag_size(frag);
+ }
+
+ memcpy(txbd, tx_push, sizeof(*txbd));
+ prod = NEXT_TX(prod);
+ txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
+ memcpy(txbd, tx_push1, sizeof(*txbd));
+ prod = NEXT_TX(prod);
+ push->doorbell =
+ cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod);
+ txr->tx_prod = prod;
+
+ netdev_tx_sent_queue(txq, skb->len);
+
+ __iowrite64_copy(txr->tx_doorbell, push,
+ (length + sizeof(*push) + 8) / 8);
+
+ tx_buf->is_push = 1;
+
+ goto tx_done;
+ }
+
+normal_tx:
+ if (length < BNXT_MIN_PKT_SIZE) {
+ pad = BNXT_MIN_PKT_SIZE - length;
+ if (skb_pad(skb, pad)) {
+ /* SKB already freed. */
+ tx_buf->skb = NULL;
+ return NETDEV_TX_OK;
+ }
+ length = BNXT_MIN_PKT_SIZE;
+ }
+
+ mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE);
+
+ if (unlikely(dma_mapping_error(&pdev->dev, mapping))) {
+ dev_kfree_skb_any(skb);
+ tx_buf->skb = NULL;
+ return NETDEV_TX_OK;
+ }
+
+ dma_unmap_addr_set(tx_buf, mapping, mapping);
+ flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD |
+ ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT);
+
+ txbd->tx_bd_haddr = cpu_to_le64(mapping);
+
+ prod = NEXT_TX(prod);
+ txbd1 = (struct tx_bd_ext *)
+ &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
+
+ txbd1->tx_bd_hsize_lflags = 0;
+ if (skb_is_gso(skb)) {
+ u32 hdr_len;
+
+ if (skb->encapsulation)
+ hdr_len = skb_inner_network_offset(skb) +
+ skb_inner_network_header_len(skb) +
+ inner_tcp_hdrlen(skb);
+ else
+ hdr_len = skb_transport_offset(skb) +
+ tcp_hdrlen(skb);
+
+ txbd1->tx_bd_hsize_lflags = cpu_to_le32(TX_BD_FLAGS_LSO |
+ TX_BD_FLAGS_T_IPID |
+ (hdr_len << (TX_BD_HSIZE_SHIFT - 1)));
+ length = skb_shinfo(skb)->gso_size;
+ txbd1->tx_bd_mss = cpu_to_le32(length);
+ length += hdr_len;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ txbd1->tx_bd_hsize_lflags =
+ cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
+ txbd1->tx_bd_mss = 0;
+ }
+
+ length >>= 9;
+ flags |= bnxt_lhint_arr[length];
+ txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
+
+ txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
+ txbd1->tx_bd_cfa_action = cpu_to_le32(cfa_action);
+ for (i = 0; i < last_frag; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ prod = NEXT_TX(prod);
+ txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
+
+ len = skb_frag_size(frag);
+ mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len,
+ DMA_TO_DEVICE);
+
+ if (unlikely(dma_mapping_error(&pdev->dev, mapping)))
+ goto tx_dma_error;
+
+ tx_buf = &txr->tx_buf_ring[prod];
+ dma_unmap_addr_set(tx_buf, mapping, mapping);
+
+ txbd->tx_bd_haddr = cpu_to_le64(mapping);
+
+ flags = len << TX_BD_LEN_SHIFT;
+ txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
+ }
+
+ flags &= ~TX_BD_LEN;
+ txbd->tx_bd_len_flags_type =
+ cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags |
+ TX_BD_FLAGS_PACKET_END);
+
+ netdev_tx_sent_queue(txq, skb->len);
+
+ /* Sync BD data before updating doorbell */
+ wmb();
+
+ prod = NEXT_TX(prod);
+ txr->tx_prod = prod;
+
+ writel(DB_KEY_TX | prod, txr->tx_doorbell);
+ writel(DB_KEY_TX | prod, txr->tx_doorbell);
+
+tx_done:
+
+ mmiowb();
+
+ if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) {
+ netif_tx_stop_queue(txq);
+
+ /* netif_tx_stop_queue() must be done before checking
+ * tx index in bnxt_tx_avail() below, because in
+ * bnxt_tx_int(), we update tx index before checking for
+ * netif_tx_queue_stopped().
+ */
+ smp_mb();
+ if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)
+ netif_tx_wake_queue(txq);
+ }
+ return NETDEV_TX_OK;
+
+tx_dma_error:
+ last_frag = i;
+
+ /* start back at beginning and unmap skb */
+ prod = txr->tx_prod;
+ tx_buf = &txr->tx_buf_ring[prod];
+ tx_buf->skb = NULL;
+ dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
+ skb_headlen(skb), PCI_DMA_TODEVICE);
+ prod = NEXT_TX(prod);
+
+ /* unmap remaining mapped pages */
+ for (i = 0; i < last_frag; i++) {
+ prod = NEXT_TX(prod);
+ tx_buf = &txr->tx_buf_ring[prod];
+ dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
+ skb_frag_size(&skb_shinfo(skb)->frags[i]),
+ PCI_DMA_TODEVICE);
+ }
+
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts)
+{
+ struct bnxt_tx_ring_info *txr = &bnapi->tx_ring;
+ int index = bnapi->index;
+ struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, index);
+ u16 cons = txr->tx_cons;
+ struct pci_dev *pdev = bp->pdev;
+ int i;
+ unsigned int tx_bytes = 0;
+
+ for (i = 0; i < nr_pkts; i++) {
+ struct bnxt_sw_tx_bd *tx_buf;
+ struct sk_buff *skb;
+ int j, last;
+
+ tx_buf = &txr->tx_buf_ring[cons];
+ cons = NEXT_TX(cons);
+ skb = tx_buf->skb;
+ tx_buf->skb = NULL;
+
+ if (tx_buf->is_push) {
+ tx_buf->is_push = 0;
+ goto next_tx_int;
+ }
+
+ dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
+ skb_headlen(skb), PCI_DMA_TODEVICE);
+ last = tx_buf->nr_frags;
+
+ for (j = 0; j < last; j++) {
+ cons = NEXT_TX(cons);
+ tx_buf = &txr->tx_buf_ring[cons];
+ dma_unmap_page(
+ &pdev->dev,
+ dma_unmap_addr(tx_buf, mapping),
+ skb_frag_size(&skb_shinfo(skb)->frags[j]),
+ PCI_DMA_TODEVICE);
+ }
+
+next_tx_int:
+ cons = NEXT_TX(cons);
+
+ tx_bytes += skb->len;
+ dev_kfree_skb_any(skb);
+ }
+
+ netdev_tx_completed_queue(txq, nr_pkts, tx_bytes);
+ txr->tx_cons = cons;
+
+ /* Need to make the tx_cons update visible to bnxt_start_xmit()
+ * before checking for netif_tx_queue_stopped(). Without the
+ * memory barrier, there is a small possibility that bnxt_start_xmit()
+ * will miss it and cause the queue to be stopped forever.
+ */
+ smp_mb();
+
+ if (unlikely(netif_tx_queue_stopped(txq)) &&
+ (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
+ __netif_tx_lock(txq, smp_processor_id());
+ if (netif_tx_queue_stopped(txq) &&
+ bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
+ txr->dev_state != BNXT_DEV_STATE_CLOSING)
+ netif_tx_wake_queue(txq);
+ __netif_tx_unlock(txq);
+ }
+}
+
+static inline u8 *__bnxt_alloc_rx_data(struct bnxt *bp, dma_addr_t *mapping,
+ gfp_t gfp)
+{
+ u8 *data;
+ struct pci_dev *pdev = bp->pdev;
+
+ data = kmalloc(bp->rx_buf_size, gfp);
+ if (!data)
+ return NULL;
+
+ *mapping = dma_map_single(&pdev->dev, data + BNXT_RX_DMA_OFFSET,
+ bp->rx_buf_use_size, PCI_DMA_FROMDEVICE);
+
+ if (dma_mapping_error(&pdev->dev, *mapping)) {
+ kfree(data);
+ data = NULL;
+ }
+ return data;
+}
+
+static inline int bnxt_alloc_rx_data(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr,
+ u16 prod, gfp_t gfp)
+{
+ struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
+ struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod];
+ u8 *data;
+ dma_addr_t mapping;
+
+ data = __bnxt_alloc_rx_data(bp, &mapping, gfp);
+ if (!data)
+ return -ENOMEM;
+
+ rx_buf->data = data;
+ dma_unmap_addr_set(rx_buf, mapping, mapping);
+
+ rxbd->rx_bd_haddr = cpu_to_le64(mapping);
+
+ return 0;
+}
+
+static void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons,
+ u8 *data)
+{
+ u16 prod = rxr->rx_prod;
+ struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
+ struct rx_bd *cons_bd, *prod_bd;
+
+ prod_rx_buf = &rxr->rx_buf_ring[prod];
+ cons_rx_buf = &rxr->rx_buf_ring[cons];
+
+ prod_rx_buf->data = data;
+
+ dma_unmap_addr_set(prod_rx_buf, mapping,
+ dma_unmap_addr(cons_rx_buf, mapping));
+
+ prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
+ cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)];
+
+ prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr;
+}
+
+static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
+{
+ u16 next, max = rxr->rx_agg_bmap_size;
+
+ next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx);
+ if (next >= max)
+ next = find_first_zero_bit(rxr->rx_agg_bmap, max);
+ return next;
+}
+
+static inline int bnxt_alloc_rx_page(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr,
+ u16 prod, gfp_t gfp)
+{
+ struct rx_bd *rxbd =
+ &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
+ struct bnxt_sw_rx_agg_bd *rx_agg_buf;
+ struct pci_dev *pdev = bp->pdev;
+ struct page *page;
+ dma_addr_t mapping;
+ u16 sw_prod = rxr->rx_sw_agg_prod;
+
+ page = alloc_page(gfp);
+ if (!page)
+ return -ENOMEM;
+
+ mapping = dma_map_page(&pdev->dev, page, 0, PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+ if (dma_mapping_error(&pdev->dev, mapping)) {
+ __free_page(page);
+ return -EIO;
+ }
+
+ if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
+ sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
+
+ __set_bit(sw_prod, rxr->rx_agg_bmap);
+ rx_agg_buf = &rxr->rx_agg_ring[sw_prod];
+ rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod);
+
+ rx_agg_buf->page = page;
+ rx_agg_buf->mapping = mapping;
+ rxbd->rx_bd_haddr = cpu_to_le64(mapping);
+ rxbd->rx_bd_opaque = sw_prod;
+ return 0;
+}
+
+static void bnxt_reuse_rx_agg_bufs(struct bnxt_napi *bnapi, u16 cp_cons,
+ u32 agg_bufs)
+{
+ struct bnxt *bp = bnapi->bp;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ u16 prod = rxr->rx_agg_prod;
+ u16 sw_prod = rxr->rx_sw_agg_prod;
+ u32 i;
+
+ for (i = 0; i < agg_bufs; i++) {
+ u16 cons;
+ struct rx_agg_cmp *agg;
+ struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf;
+ struct rx_bd *prod_bd;
+ struct page *page;
+
+ agg = (struct rx_agg_cmp *)
+ &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+ cons = agg->rx_agg_cmp_opaque;
+ __clear_bit(cons, rxr->rx_agg_bmap);
+
+ if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
+ sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
+
+ __set_bit(sw_prod, rxr->rx_agg_bmap);
+ prod_rx_buf = &rxr->rx_agg_ring[sw_prod];
+ cons_rx_buf = &rxr->rx_agg_ring[cons];
+
+ /* It is possible for sw_prod to be equal to cons, so
+ * set cons_rx_buf->page to NULL first.
+ */
+ page = cons_rx_buf->page;
+ cons_rx_buf->page = NULL;
+ prod_rx_buf->page = page;
+
+ prod_rx_buf->mapping = cons_rx_buf->mapping;
+
+ prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
+
+ prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping);
+ prod_bd->rx_bd_opaque = sw_prod;
+
+ prod = NEXT_RX_AGG(prod);
+ sw_prod = NEXT_RX_AGG(sw_prod);
+ cp_cons = NEXT_CMP(cp_cons);
+ }
+ rxr->rx_agg_prod = prod;
+ rxr->rx_sw_agg_prod = sw_prod;
+}
+
+static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr, u16 cons,
+ u16 prod, u8 *data, dma_addr_t dma_addr,
+ unsigned int len)
+{
+ int err;
+ struct sk_buff *skb;
+
+ err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
+ if (unlikely(err)) {
+ bnxt_reuse_rx_data(rxr, cons, data);
+ return NULL;
+ }
+
+ skb = build_skb(data, 0);
+ dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
+ PCI_DMA_FROMDEVICE);
+ if (!skb) {
+ kfree(data);
+ return NULL;
+ }
+
+ skb_reserve(skb, BNXT_RX_OFFSET);
+ skb_put(skb, len);
+ return skb;
+}
+
+static struct sk_buff *bnxt_rx_pages(struct bnxt *bp, struct bnxt_napi *bnapi,
+ struct sk_buff *skb, u16 cp_cons,
+ u32 agg_bufs)
+{
+ struct pci_dev *pdev = bp->pdev;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ u16 prod = rxr->rx_agg_prod;
+ u32 i;
+
+ for (i = 0; i < agg_bufs; i++) {
+ u16 cons, frag_len;
+ struct rx_agg_cmp *agg;
+ struct bnxt_sw_rx_agg_bd *cons_rx_buf;
+ struct page *page;
+ dma_addr_t mapping;
+
+ agg = (struct rx_agg_cmp *)
+ &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+ cons = agg->rx_agg_cmp_opaque;
+ frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
+ RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;
+
+ cons_rx_buf = &rxr->rx_agg_ring[cons];
+ skb_fill_page_desc(skb, i, cons_rx_buf->page, 0, frag_len);
+ __clear_bit(cons, rxr->rx_agg_bmap);
+
+ /* It is possible for bnxt_alloc_rx_page() to allocate
+ * a sw_prod index that equals the cons index, so we
+ * need to clear the cons entry now.
+ */
+ mapping = dma_unmap_addr(cons_rx_buf, mapping);
+ page = cons_rx_buf->page;
+ cons_rx_buf->page = NULL;
+
+ if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) {
+ struct skb_shared_info *shinfo;
+ unsigned int nr_frags;
+
+ shinfo = skb_shinfo(skb);
+ nr_frags = --shinfo->nr_frags;
+ __skb_frag_set_page(&shinfo->frags[nr_frags], NULL);
+
+ dev_kfree_skb(skb);
+
+ cons_rx_buf->page = page;
+
+ /* Update prod since possibly some pages have been
+ * allocated already.
+ */
+ rxr->rx_agg_prod = prod;
+ bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs - i);
+ return NULL;
+ }
+
+ dma_unmap_page(&pdev->dev, mapping, PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ skb->data_len += frag_len;
+ skb->len += frag_len;
+ skb->truesize += PAGE_SIZE;
+
+ prod = NEXT_RX_AGG(prod);
+ cp_cons = NEXT_CMP(cp_cons);
+ }
+ rxr->rx_agg_prod = prod;
+ return skb;
+}
+
+static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
+ u8 agg_bufs, u32 *raw_cons)
+{
+ u16 last;
+ struct rx_agg_cmp *agg;
+
+ *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs);
+ last = RING_CMP(*raw_cons);
+ agg = (struct rx_agg_cmp *)
+ &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)];
+ return RX_AGG_CMP_VALID(agg, *raw_cons);
+}
+
+static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data,
+ unsigned int len,
+ dma_addr_t mapping)
+{
+ struct bnxt *bp = bnapi->bp;
+ struct pci_dev *pdev = bp->pdev;
+ struct sk_buff *skb;
+
+ skb = napi_alloc_skb(&bnapi->napi, len);
+ if (!skb)
+ return NULL;
+
+ dma_sync_single_for_cpu(&pdev->dev, mapping,
+ bp->rx_copy_thresh, PCI_DMA_FROMDEVICE);
+
+ memcpy(skb->data - BNXT_RX_OFFSET, data, len + BNXT_RX_OFFSET);
+
+ dma_sync_single_for_device(&pdev->dev, mapping,
+ bp->rx_copy_thresh,
+ PCI_DMA_FROMDEVICE);
+
+ skb_put(skb, len);
+ return skb;
+}
+
+static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
+ struct rx_tpa_start_cmp *tpa_start,
+ struct rx_tpa_start_cmp_ext *tpa_start1)
+{
+ u8 agg_id = TPA_START_AGG_ID(tpa_start);
+ u16 cons, prod;
+ struct bnxt_tpa_info *tpa_info;
+ struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
+ struct rx_bd *prod_bd;
+ dma_addr_t mapping;
+
+ cons = tpa_start->rx_tpa_start_cmp_opaque;
+ prod = rxr->rx_prod;
+ cons_rx_buf = &rxr->rx_buf_ring[cons];
+ prod_rx_buf = &rxr->rx_buf_ring[prod];
+ tpa_info = &rxr->rx_tpa[agg_id];
+
+ prod_rx_buf->data = tpa_info->data;
+
+ mapping = tpa_info->mapping;
+ dma_unmap_addr_set(prod_rx_buf, mapping, mapping);
+
+ prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
+
+ prod_bd->rx_bd_haddr = cpu_to_le64(mapping);
+
+ tpa_info->data = cons_rx_buf->data;
+ cons_rx_buf->data = NULL;
+ tpa_info->mapping = dma_unmap_addr(cons_rx_buf, mapping);
+
+ tpa_info->len =
+ le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >>
+ RX_TPA_START_CMP_LEN_SHIFT;
+ if (likely(TPA_START_HASH_VALID(tpa_start))) {
+ u32 hash_type = TPA_START_HASH_TYPE(tpa_start);
+
+ tpa_info->hash_type = PKT_HASH_TYPE_L4;
+ tpa_info->gso_type = SKB_GSO_TCPV4;
+ /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
+ if (hash_type == 3)
+ tpa_info->gso_type = SKB_GSO_TCPV6;
+ tpa_info->rss_hash =
+ le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash);
+ } else {
+ tpa_info->hash_type = PKT_HASH_TYPE_NONE;
+ tpa_info->gso_type = 0;
+ if (netif_msg_rx_err(bp))
+ netdev_warn(bp->dev, "TPA packet without valid hash\n");
+ }
+ tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2);
+ tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata);
+
+ rxr->rx_prod = NEXT_RX(prod);
+ cons = NEXT_RX(cons);
+ cons_rx_buf = &rxr->rx_buf_ring[cons];
+
+ bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data);
+ rxr->rx_prod = NEXT_RX(rxr->rx_prod);
+ cons_rx_buf->data = NULL;
+}
+
+static void bnxt_abort_tpa(struct bnxt *bp, struct bnxt_napi *bnapi,
+ u16 cp_cons, u32 agg_bufs)
+{
+ if (agg_bufs)
+ bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
+}
+
+#define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr))
+#define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
+
+static inline struct sk_buff *bnxt_gro_skb(struct bnxt_tpa_info *tpa_info,
+ struct rx_tpa_end_cmp *tpa_end,
+ struct rx_tpa_end_cmp_ext *tpa_end1,
+ struct sk_buff *skb)
+{
+#ifdef CONFIG_INET
+ struct tcphdr *th;
+ int payload_off, tcp_opt_len = 0;
+ int len, nw_off;
+
+ NAPI_GRO_CB(skb)->count = TPA_END_TPA_SEGS(tpa_end);
+ skb_shinfo(skb)->gso_size =
+ le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
+ skb_shinfo(skb)->gso_type = tpa_info->gso_type;
+ payload_off = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
+ RX_TPA_END_CMP_PAYLOAD_OFFSET) >>
+ RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT;
+ if (TPA_END_GRO_TS(tpa_end))
+ tcp_opt_len = 12;
+
+ if (tpa_info->gso_type == SKB_GSO_TCPV4) {
+ struct iphdr *iph;
+
+ nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len -
+ ETH_HLEN;
+ skb_set_network_header(skb, nw_off);
+ iph = ip_hdr(skb);
+ skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
+ len = skb->len - skb_transport_offset(skb);
+ th = tcp_hdr(skb);
+ th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
+ } else if (tpa_info->gso_type == SKB_GSO_TCPV6) {
+ struct ipv6hdr *iph;
+
+ nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len -
+ ETH_HLEN;
+ skb_set_network_header(skb, nw_off);
+ iph = ipv6_hdr(skb);
+ skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
+ len = skb->len - skb_transport_offset(skb);
+ th = tcp_hdr(skb);
+ th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
+ } else {
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
+ tcp_gro_complete(skb);
+
+ if (nw_off) { /* tunnel */
+ struct udphdr *uh = NULL;
+
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = (struct iphdr *)skb->data;
+
+ if (iph->protocol == IPPROTO_UDP)
+ uh = (struct udphdr *)(iph + 1);
+ } else {
+ struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
+
+ if (iph->nexthdr == IPPROTO_UDP)
+ uh = (struct udphdr *)(iph + 1);
+ }
+ if (uh) {
+ if (uh->check)
+ skb_shinfo(skb)->gso_type |=
+ SKB_GSO_UDP_TUNNEL_CSUM;
+ else
+ skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
+ }
+ }
+#endif
+ return skb;
+}
+
+static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
+ struct bnxt_napi *bnapi,
+ u32 *raw_cons,
+ struct rx_tpa_end_cmp *tpa_end,
+ struct rx_tpa_end_cmp_ext *tpa_end1,
+ bool *agg_event)
+{
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ u8 agg_id = TPA_END_AGG_ID(tpa_end);
+ u8 *data, agg_bufs;
+ u16 cp_cons = RING_CMP(*raw_cons);
+ unsigned int len;
+ struct bnxt_tpa_info *tpa_info;
+ dma_addr_t mapping;
+ struct sk_buff *skb;
+
+ tpa_info = &rxr->rx_tpa[agg_id];
+ data = tpa_info->data;
+ prefetch(data);
+ len = tpa_info->len;
+ mapping = tpa_info->mapping;
+
+ agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
+ RX_TPA_END_CMP_AGG_BUFS) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT;
+
+ if (agg_bufs) {
+ if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
+ return ERR_PTR(-EBUSY);
+
+ *agg_event = true;
+ cp_cons = NEXT_CMP(cp_cons);
+ }
+
+ if (unlikely(agg_bufs > MAX_SKB_FRAGS)) {
+ bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
+ netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
+ agg_bufs, (int)MAX_SKB_FRAGS);
+ return NULL;
+ }
+
+ if (len <= bp->rx_copy_thresh) {
+ skb = bnxt_copy_skb(bnapi, data, len, mapping);
+ if (!skb) {
+ bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
+ return NULL;
+ }
+ } else {
+ u8 *new_data;
+ dma_addr_t new_mapping;
+
+ new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
+ if (!new_data) {
+ bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
+ return NULL;
+ }
+
+ tpa_info->data = new_data;
+ tpa_info->mapping = new_mapping;
+
+ skb = build_skb(data, 0);
+ dma_unmap_single(&bp->pdev->dev, mapping, bp->rx_buf_use_size,
+ PCI_DMA_FROMDEVICE);
+
+ if (!skb) {
+ kfree(data);
+ bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
+ return NULL;
+ }
+ skb_reserve(skb, BNXT_RX_OFFSET);
+ skb_put(skb, len);
+ }
+
+ if (agg_bufs) {
+ skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
+ if (!skb) {
+ /* Page reuse already handled by bnxt_rx_pages(). */
+ return NULL;
+ }
+ }
+ skb->protocol = eth_type_trans(skb, bp->dev);
+
+ if (tpa_info->hash_type != PKT_HASH_TYPE_NONE)
+ skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type);
+
+ if (tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) {
+ netdev_features_t features = skb->dev->features;
+ u16 vlan_proto = tpa_info->metadata >>
+ RX_CMP_FLAGS2_METADATA_TPID_SFT;
+
+ if (((features & NETIF_F_HW_VLAN_CTAG_RX) &&
+ vlan_proto == ETH_P_8021Q) ||
+ ((features & NETIF_F_HW_VLAN_STAG_RX) &&
+ vlan_proto == ETH_P_8021AD)) {
+ __vlan_hwaccel_put_tag(skb, htons(vlan_proto),
+ tpa_info->metadata &
+ RX_CMP_FLAGS2_METADATA_VID_MASK);
+ }
+ }
+
+ skb_checksum_none_assert(skb);
+ if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->csum_level =
+ (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3;
+ }
+
+ if (TPA_END_GRO(tpa_end))
+ skb = bnxt_gro_skb(tpa_info, tpa_end, tpa_end1, skb);
+
+ return skb;
+}
+
+/* returns the following:
+ * 1 - 1 packet successfully received
+ * 0 - successful TPA_START, packet not completed yet
+ * -EBUSY - completion ring does not have all the agg buffers yet
+ * -ENOMEM - packet aborted due to out of memory
+ * -EIO - packet aborted due to hw error indicated in BD
+ */
+static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
+ bool *agg_event)
+{
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ struct net_device *dev = bp->dev;
+ struct rx_cmp *rxcmp;
+ struct rx_cmp_ext *rxcmp1;
+ u32 tmp_raw_cons = *raw_cons;
+ u16 cons, prod, cp_cons = RING_CMP(tmp_raw_cons);
+ struct bnxt_sw_rx_bd *rx_buf;
+ unsigned int len;
+ u8 *data, agg_bufs, cmp_type;
+ dma_addr_t dma_addr;
+ struct sk_buff *skb;
+ int rc = 0;
+
+ rxcmp = (struct rx_cmp *)
+ &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+
+ tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
+ cp_cons = RING_CMP(tmp_raw_cons);
+ rxcmp1 = (struct rx_cmp_ext *)
+ &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
+
+ if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
+ return -EBUSY;
+
+ cmp_type = RX_CMP_TYPE(rxcmp);
+
+ prod = rxr->rx_prod;
+
+ if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) {
+ bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp,
+ (struct rx_tpa_start_cmp_ext *)rxcmp1);
+
+ goto next_rx_no_prod;
+
+ } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
+ skb = bnxt_tpa_end(bp, bnapi, &tmp_raw_cons,
+ (struct rx_tpa_end_cmp *)rxcmp,
+ (struct rx_tpa_end_cmp_ext *)rxcmp1,
+ agg_event);
+
+ if (unlikely(IS_ERR(skb)))
+ return -EBUSY;
+
+ rc = -ENOMEM;
+ if (likely(skb)) {
+ skb_record_rx_queue(skb, bnapi->index);
+ skb_mark_napi_id(skb, &bnapi->napi);
+ if (bnxt_busy_polling(bnapi))
+ netif_receive_skb(skb);
+ else
+ napi_gro_receive(&bnapi->napi, skb);
+ rc = 1;
+ }
+ goto next_rx_no_prod;
+ }
+
+ cons = rxcmp->rx_cmp_opaque;
+ rx_buf = &rxr->rx_buf_ring[cons];
+ data = rx_buf->data;
+ prefetch(data);
+
+ agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & RX_CMP_AGG_BUFS) >>
+ RX_CMP_AGG_BUFS_SHIFT;
+
+ if (agg_bufs) {
+ if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
+ return -EBUSY;
+
+ cp_cons = NEXT_CMP(cp_cons);
+ *agg_event = true;
+ }
+
+ rx_buf->data = NULL;
+ if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
+ bnxt_reuse_rx_data(rxr, cons, data);
+ if (agg_bufs)
+ bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
+
+ rc = -EIO;
+ goto next_rx;
+ }
+
+ len = le32_to_cpu(rxcmp->rx_cmp_len_flags_type) >> RX_CMP_LEN_SHIFT;
+ dma_addr = dma_unmap_addr(rx_buf, mapping);
+
+ if (len <= bp->rx_copy_thresh) {
+ skb = bnxt_copy_skb(bnapi, data, len, dma_addr);
+ bnxt_reuse_rx_data(rxr, cons, data);
+ if (!skb) {
+ rc = -ENOMEM;
+ goto next_rx;
+ }
+ } else {
+ skb = bnxt_rx_skb(bp, rxr, cons, prod, data, dma_addr, len);
+ if (!skb) {
+ rc = -ENOMEM;
+ goto next_rx;
+ }
+ }
+
+ if (agg_bufs) {
+ skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
+ if (!skb) {
+ rc = -ENOMEM;
+ goto next_rx;
+ }
+ }
+
+ if (RX_CMP_HASH_VALID(rxcmp)) {
+ u32 hash_type = RX_CMP_HASH_TYPE(rxcmp);
+ enum pkt_hash_types type = PKT_HASH_TYPE_L4;
+
+ /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
+ if (hash_type != 1 && hash_type != 3)
+ type = PKT_HASH_TYPE_L3;
+ skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type);
+ }
+
+ skb->protocol = eth_type_trans(skb, dev);
+
+ if (rxcmp1->rx_cmp_flags2 &
+ cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) {
+ netdev_features_t features = skb->dev->features;
+ u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data);
+ u16 vlan_proto = meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT;
+
+ if (((features & NETIF_F_HW_VLAN_CTAG_RX) &&
+ vlan_proto == ETH_P_8021Q) ||
+ ((features & NETIF_F_HW_VLAN_STAG_RX) &&
+ vlan_proto == ETH_P_8021AD))
+ __vlan_hwaccel_put_tag(skb, htons(vlan_proto),
+ meta_data &
+ RX_CMP_FLAGS2_METADATA_VID_MASK);
+ }
+
+ skb_checksum_none_assert(skb);
+ if (RX_CMP_L4_CS_OK(rxcmp1)) {
+ if (dev->features & NETIF_F_RXCSUM) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->csum_level = RX_CMP_ENCAP(rxcmp1);
+ }
+ } else {
+ if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS)
+ cpr->rx_l4_csum_errors++;
+ }
+
+ skb_record_rx_queue(skb, bnapi->index);
+ skb_mark_napi_id(skb, &bnapi->napi);
+ if (bnxt_busy_polling(bnapi))
+ netif_receive_skb(skb);
+ else
+ napi_gro_receive(&bnapi->napi, skb);
+ rc = 1;
+
+next_rx:
+ rxr->rx_prod = NEXT_RX(prod);
+
+next_rx_no_prod:
+ *raw_cons = tmp_raw_cons;
+
+ return rc;
+}
+
+static int bnxt_async_event_process(struct bnxt *bp,
+ struct hwrm_async_event_cmpl *cmpl)
+{
+ u16 event_id = le16_to_cpu(cmpl->event_id);
+
+ /* TODO CHIMP_FW: Define event id's for link change, error etc */
+ switch (event_id) {
+ case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
+ set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+ break;
+ default:
+ netdev_err(bp->dev, "unhandled ASYNC event (id 0x%x)\n",
+ event_id);
+ break;
+ }
+ return 0;
+}
+
+static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp)
+{
+ u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id;
+ struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp;
+ struct hwrm_fwd_req_cmpl *fwd_req_cmpl =
+ (struct hwrm_fwd_req_cmpl *)txcmp;
+
+ switch (cmpl_type) {
+ case CMPL_BASE_TYPE_HWRM_DONE:
+ seq_id = le16_to_cpu(h_cmpl->sequence_id);
+ if (seq_id == bp->hwrm_intr_seq_id)
+ bp->hwrm_intr_seq_id = HWRM_SEQ_ID_INVALID;
+ else
+ netdev_err(bp->dev, "Invalid hwrm seq id %d\n", seq_id);
+ break;
+
+ case CMPL_BASE_TYPE_HWRM_FWD_REQ:
+ vf_id = le16_to_cpu(fwd_req_cmpl->source_id);
+
+ if ((vf_id < bp->pf.first_vf_id) ||
+ (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) {
+ netdev_err(bp->dev, "Msg contains invalid VF id %x\n",
+ vf_id);
+ return -EINVAL;
+ }
+
+ set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap);
+ set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+ break;
+
+ case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
+ bnxt_async_event_process(bp,
+ (struct hwrm_async_event_cmpl *)txcmp);
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static irqreturn_t bnxt_msix(int irq, void *dev_instance)
+{
+ struct bnxt_napi *bnapi = dev_instance;
+ struct bnxt *bp = bnapi->bp;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ u32 cons = RING_CMP(cpr->cp_raw_cons);
+
+ prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
+ napi_schedule(&bnapi->napi);
+ return IRQ_HANDLED;
+}
+
+static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
+{
+ u32 raw_cons = cpr->cp_raw_cons;
+ u16 cons = RING_CMP(raw_cons);
+ struct tx_cmp *txcmp;
+
+ txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
+
+ return TX_CMP_VALID(txcmp, raw_cons);
+}
+
+static irqreturn_t bnxt_inta(int irq, void *dev_instance)
+{
+ struct bnxt_napi *bnapi = dev_instance;
+ struct bnxt *bp = bnapi->bp;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ u32 cons = RING_CMP(cpr->cp_raw_cons);
+ u32 int_status;
+
+ prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
+
+ if (!bnxt_has_work(bp, cpr)) {
+ int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS);
+ /* return if erroneous interrupt */
+ if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id)))
+ return IRQ_NONE;
+ }
+
+ /* disable ring IRQ */
+ BNXT_CP_DB_IRQ_DIS(cpr->cp_doorbell);
+
+ /* Return here if interrupt is shared and is disabled. */
+ if (unlikely(atomic_read(&bp->intr_sem) != 0))
+ return IRQ_HANDLED;
+
+ napi_schedule(&bnapi->napi);
+ return IRQ_HANDLED;
+}
+
+static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
+{
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ u32 raw_cons = cpr->cp_raw_cons;
+ u32 cons;
+ int tx_pkts = 0;
+ int rx_pkts = 0;
+ bool rx_event = false;
+ bool agg_event = false;
+ struct tx_cmp *txcmp;
+
+ while (1) {
+ int rc;
+
+ cons = RING_CMP(raw_cons);
+ txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
+
+ if (!TX_CMP_VALID(txcmp, raw_cons))
+ break;
+
+ if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
+ tx_pkts++;
+ /* return full budget so NAPI will complete. */
+ if (unlikely(tx_pkts > bp->tx_wake_thresh))
+ rx_pkts = budget;
+ } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
+ rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &agg_event);
+ if (likely(rc >= 0))
+ rx_pkts += rc;
+ else if (rc == -EBUSY) /* partial completion */
+ break;
+ rx_event = true;
+ } else if (unlikely((TX_CMP_TYPE(txcmp) ==
+ CMPL_BASE_TYPE_HWRM_DONE) ||
+ (TX_CMP_TYPE(txcmp) ==
+ CMPL_BASE_TYPE_HWRM_FWD_REQ) ||
+ (TX_CMP_TYPE(txcmp) ==
+ CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) {
+ bnxt_hwrm_handler(bp, txcmp);
+ }
+ raw_cons = NEXT_RAW_CMP(raw_cons);
+
+ if (rx_pkts == budget)
+ break;
+ }
+
+ cpr->cp_raw_cons = raw_cons;
+ /* ACK completion ring before freeing tx ring and producing new
+ * buffers in rx/agg rings to prevent overflowing the completion
+ * ring.
+ */
+ BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
+
+ if (tx_pkts)
+ bnxt_tx_int(bp, bnapi, tx_pkts);
+
+ if (rx_event) {
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+
+ writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
+ writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
+ if (agg_event) {
+ writel(DB_KEY_RX | rxr->rx_agg_prod,
+ rxr->rx_agg_doorbell);
+ writel(DB_KEY_RX | rxr->rx_agg_prod,
+ rxr->rx_agg_doorbell);
+ }
+ }
+ return rx_pkts;
+}
+
+static int bnxt_poll(struct napi_struct *napi, int budget)
+{
+ struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
+ struct bnxt *bp = bnapi->bp;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ int work_done = 0;
+
+ if (!bnxt_lock_napi(bnapi))
+ return budget;
+
+ while (1) {
+ work_done += bnxt_poll_work(bp, bnapi, budget - work_done);
+
+ if (work_done >= budget)
+ break;
+
+ if (!bnxt_has_work(bp, cpr)) {
+ napi_complete(napi);
+ BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons);
+ break;
+ }
+ }
+ mmiowb();
+ bnxt_unlock_napi(bnapi);
+ return work_done;
+}
+
+#ifdef CONFIG_NET_RX_BUSY_POLL
+static int bnxt_busy_poll(struct napi_struct *napi)
+{
+ struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
+ struct bnxt *bp = bnapi->bp;
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ int rx_work, budget = 4;
+
+ if (atomic_read(&bp->intr_sem) != 0)
+ return LL_FLUSH_FAILED;
+
+ if (!bnxt_lock_poll(bnapi))
+ return LL_FLUSH_BUSY;
+
+ rx_work = bnxt_poll_work(bp, bnapi, budget);
+
+ BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons);
+
+ bnxt_unlock_poll(bnapi);
+ return rx_work;
+}
+#endif
+
+static void bnxt_free_tx_skbs(struct bnxt *bp)
+{
+ int i, max_idx;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (!bp->bnapi)
+ return;
+
+ max_idx = bp->tx_nr_pages * TX_DESC_CNT;
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr;
+ int j;
+
+ if (!bnapi)
+ continue;
+
+ txr = &bnapi->tx_ring;
+ for (j = 0; j < max_idx;) {
+ struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
+ struct sk_buff *skb = tx_buf->skb;
+ int k, last;
+
+ if (!skb) {
+ j++;
+ continue;
+ }
+
+ tx_buf->skb = NULL;
+
+ if (tx_buf->is_push) {
+ dev_kfree_skb(skb);
+ j += 2;
+ continue;
+ }
+
+ dma_unmap_single(&pdev->dev,
+ dma_unmap_addr(tx_buf, mapping),
+ skb_headlen(skb),
+ PCI_DMA_TODEVICE);
+
+ last = tx_buf->nr_frags;
+ j += 2;
+ for (k = 0; k < last; k++, j = NEXT_TX(j)) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[k];
+
+ tx_buf = &txr->tx_buf_ring[j];
+ dma_unmap_page(
+ &pdev->dev,
+ dma_unmap_addr(tx_buf, mapping),
+ skb_frag_size(frag), PCI_DMA_TODEVICE);
+ }
+ dev_kfree_skb(skb);
+ }
+ netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
+ }
+}
+
+static void bnxt_free_rx_skbs(struct bnxt *bp)
+{
+ int i, max_idx, max_agg_idx;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (!bp->bnapi)
+ return;
+
+ max_idx = bp->rx_nr_pages * RX_DESC_CNT;
+ max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT;
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr;
+ int j;
+
+ if (!bnapi)
+ continue;
+
+ rxr = &bnapi->rx_ring;
+
+ if (rxr->rx_tpa) {
+ for (j = 0; j < MAX_TPA; j++) {
+ struct bnxt_tpa_info *tpa_info =
+ &rxr->rx_tpa[j];
+ u8 *data = tpa_info->data;
+
+ if (!data)
+ continue;
+
+ dma_unmap_single(
+ &pdev->dev,
+ dma_unmap_addr(tpa_info, mapping),
+ bp->rx_buf_use_size,
+ PCI_DMA_FROMDEVICE);
+
+ tpa_info->data = NULL;
+
+ kfree(data);
+ }
+ }
+
+ for (j = 0; j < max_idx; j++) {
+ struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j];
+ u8 *data = rx_buf->data;
+
+ if (!data)
+ continue;
+
+ dma_unmap_single(&pdev->dev,
+ dma_unmap_addr(rx_buf, mapping),
+ bp->rx_buf_use_size,
+ PCI_DMA_FROMDEVICE);
+
+ rx_buf->data = NULL;
+
+ kfree(data);
+ }
+
+ for (j = 0; j < max_agg_idx; j++) {
+ struct bnxt_sw_rx_agg_bd *rx_agg_buf =
+ &rxr->rx_agg_ring[j];
+ struct page *page = rx_agg_buf->page;
+
+ if (!page)
+ continue;
+
+ dma_unmap_page(&pdev->dev,
+ dma_unmap_addr(rx_agg_buf, mapping),
+ PAGE_SIZE, PCI_DMA_FROMDEVICE);
+
+ rx_agg_buf->page = NULL;
+ __clear_bit(j, rxr->rx_agg_bmap);
+
+ __free_page(page);
+ }
+ }
+}
+
+static void bnxt_free_skbs(struct bnxt *bp)
+{
+ bnxt_free_tx_skbs(bp);
+ bnxt_free_rx_skbs(bp);
+}
+
+static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_struct *ring)
+{
+ struct pci_dev *pdev = bp->pdev;
+ int i;
+
+ for (i = 0; i < ring->nr_pages; i++) {
+ if (!ring->pg_arr[i])
+ continue;
+
+ dma_free_coherent(&pdev->dev, ring->page_size,
+ ring->pg_arr[i], ring->dma_arr[i]);
+
+ ring->pg_arr[i] = NULL;
+ }
+ if (ring->pg_tbl) {
+ dma_free_coherent(&pdev->dev, ring->nr_pages * 8,
+ ring->pg_tbl, ring->pg_tbl_map);
+ ring->pg_tbl = NULL;
+ }
+ if (ring->vmem_size && *ring->vmem) {
+ vfree(*ring->vmem);
+ *ring->vmem = NULL;
+ }
+}
+
+static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_struct *ring)
+{
+ int i;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (ring->nr_pages > 1) {
+ ring->pg_tbl = dma_alloc_coherent(&pdev->dev,
+ ring->nr_pages * 8,
+ &ring->pg_tbl_map,
+ GFP_KERNEL);
+ if (!ring->pg_tbl)
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < ring->nr_pages; i++) {
+ ring->pg_arr[i] = dma_alloc_coherent(&pdev->dev,
+ ring->page_size,
+ &ring->dma_arr[i],
+ GFP_KERNEL);
+ if (!ring->pg_arr[i])
+ return -ENOMEM;
+
+ if (ring->nr_pages > 1)
+ ring->pg_tbl[i] = cpu_to_le64(ring->dma_arr[i]);
+ }
+
+ if (ring->vmem_size) {
+ *ring->vmem = vzalloc(ring->vmem_size);
+ if (!(*ring->vmem))
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static void bnxt_free_rx_rings(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ rxr = &bnapi->rx_ring;
+
+ kfree(rxr->rx_tpa);
+ rxr->rx_tpa = NULL;
+
+ kfree(rxr->rx_agg_bmap);
+ rxr->rx_agg_bmap = NULL;
+
+ ring = &rxr->rx_ring_struct;
+ bnxt_free_ring(bp, ring);
+
+ ring = &rxr->rx_agg_ring_struct;
+ bnxt_free_ring(bp, ring);
+ }
+}
+
+static int bnxt_alloc_rx_rings(struct bnxt *bp)
+{
+ int i, rc, agg_rings = 0, tpa_rings = 0;
+
+ if (bp->flags & BNXT_FLAG_AGG_RINGS)
+ agg_rings = 1;
+
+ if (bp->flags & BNXT_FLAG_TPA)
+ tpa_rings = 1;
+
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ rxr = &bnapi->rx_ring;
+ ring = &rxr->rx_ring_struct;
+
+ rc = bnxt_alloc_ring(bp, ring);
+ if (rc)
+ return rc;
+
+ if (agg_rings) {
+ u16 mem_size;
+
+ ring = &rxr->rx_agg_ring_struct;
+ rc = bnxt_alloc_ring(bp, ring);
+ if (rc)
+ return rc;
+
+ rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1;
+ mem_size = rxr->rx_agg_bmap_size / 8;
+ rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL);
+ if (!rxr->rx_agg_bmap)
+ return -ENOMEM;
+
+ if (tpa_rings) {
+ rxr->rx_tpa = kcalloc(MAX_TPA,
+ sizeof(struct bnxt_tpa_info),
+ GFP_KERNEL);
+ if (!rxr->rx_tpa)
+ return -ENOMEM;
+ }
+ }
+ }
+ return 0;
+}
+
+static void bnxt_free_tx_rings(struct bnxt *bp)
+{
+ int i;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ txr = &bnapi->tx_ring;
+
+ if (txr->tx_push) {
+ dma_free_coherent(&pdev->dev, bp->tx_push_size,
+ txr->tx_push, txr->tx_push_mapping);
+ txr->tx_push = NULL;
+ }
+
+ ring = &txr->tx_ring_struct;
+
+ bnxt_free_ring(bp, ring);
+ }
+}
+
+static int bnxt_alloc_tx_rings(struct bnxt *bp)
+{
+ int i, j, rc;
+ struct pci_dev *pdev = bp->pdev;
+
+ bp->tx_push_size = 0;
+ if (bp->tx_push_thresh) {
+ int push_size;
+
+ push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) +
+ bp->tx_push_thresh);
+
+ if (push_size > 128) {
+ push_size = 0;
+ bp->tx_push_thresh = 0;
+ }
+
+ bp->tx_push_size = push_size;
+ }
+
+ for (i = 0, j = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ txr = &bnapi->tx_ring;
+ ring = &txr->tx_ring_struct;
+
+ rc = bnxt_alloc_ring(bp, ring);
+ if (rc)
+ return rc;
+
+ if (bp->tx_push_size) {
+ struct tx_bd *txbd;
+ dma_addr_t mapping;
+
+ /* One pre-allocated DMA buffer to backup
+ * TX push operation
+ */
+ txr->tx_push = dma_alloc_coherent(&pdev->dev,
+ bp->tx_push_size,
+ &txr->tx_push_mapping,
+ GFP_KERNEL);
+
+ if (!txr->tx_push)
+ return -ENOMEM;
+
+ txbd = &txr->tx_push->txbd1;
+
+ mapping = txr->tx_push_mapping +
+ sizeof(struct tx_push_bd);
+ txbd->tx_bd_haddr = cpu_to_le64(mapping);
+
+ memset(txbd + 1, 0, sizeof(struct tx_bd_ext));
+ }
+ ring->queue_id = bp->q_info[j].queue_id;
+ if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))
+ j++;
+ }
+ return 0;
+}
+
+static void bnxt_free_cp_rings(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ cpr = &bnapi->cp_ring;
+ ring = &cpr->cp_ring_struct;
+
+ bnxt_free_ring(bp, ring);
+ }
+}
+
+static int bnxt_alloc_cp_rings(struct bnxt *bp)
+{
+ int i, rc;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ cpr = &bnapi->cp_ring;
+ ring = &cpr->cp_ring_struct;
+
+ rc = bnxt_alloc_ring(bp, ring);
+ if (rc)
+ return rc;
+ }
+ return 0;
+}
+
+static void bnxt_init_ring_struct(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr;
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_ring_struct *ring;
+
+ if (!bnapi)
+ continue;
+
+ cpr = &bnapi->cp_ring;
+ ring = &cpr->cp_ring_struct;
+ ring->nr_pages = bp->cp_nr_pages;
+ ring->page_size = HW_CMPD_RING_SIZE;
+ ring->pg_arr = (void **)cpr->cp_desc_ring;
+ ring->dma_arr = cpr->cp_desc_mapping;
+ ring->vmem_size = 0;
+
+ rxr = &bnapi->rx_ring;
+ ring = &rxr->rx_ring_struct;
+ ring->nr_pages = bp->rx_nr_pages;
+ ring->page_size = HW_RXBD_RING_SIZE;
+ ring->pg_arr = (void **)rxr->rx_desc_ring;
+ ring->dma_arr = rxr->rx_desc_mapping;
+ ring->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;
+ ring->vmem = (void **)&rxr->rx_buf_ring;
+
+ ring = &rxr->rx_agg_ring_struct;
+ ring->nr_pages = bp->rx_agg_nr_pages;
+ ring->page_size = HW_RXBD_RING_SIZE;
+ ring->pg_arr = (void **)rxr->rx_agg_desc_ring;
+ ring->dma_arr = rxr->rx_agg_desc_mapping;
+ ring->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages;
+ ring->vmem = (void **)&rxr->rx_agg_ring;
+
+ txr = &bnapi->tx_ring;
+ ring = &txr->tx_ring_struct;
+ ring->nr_pages = bp->tx_nr_pages;
+ ring->page_size = HW_RXBD_RING_SIZE;
+ ring->pg_arr = (void **)txr->tx_desc_ring;
+ ring->dma_arr = txr->tx_desc_mapping;
+ ring->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages;
+ ring->vmem = (void **)&txr->tx_buf_ring;
+ }
+}
+
+static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type)
+{
+ int i;
+ u32 prod;
+ struct rx_bd **rx_buf_ring;
+
+ rx_buf_ring = (struct rx_bd **)ring->pg_arr;
+ for (i = 0, prod = 0; i < ring->nr_pages; i++) {
+ int j;
+ struct rx_bd *rxbd;
+
+ rxbd = rx_buf_ring[i];
+ if (!rxbd)
+ continue;
+
+ for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) {
+ rxbd->rx_bd_len_flags_type = cpu_to_le32(type);
+ rxbd->rx_bd_opaque = prod;
+ }
+ }
+}
+
+static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
+{
+ struct net_device *dev = bp->dev;
+ struct bnxt_napi *bnapi = bp->bnapi[ring_nr];
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_ring_struct *ring;
+ u32 prod, type;
+ int i;
+
+ if (!bnapi)
+ return -EINVAL;
+
+ type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) |
+ RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP;
+
+ if (NET_IP_ALIGN == 2)
+ type |= RX_BD_FLAGS_SOP;
+
+ rxr = &bnapi->rx_ring;
+ ring = &rxr->rx_ring_struct;
+ bnxt_init_rxbd_pages(ring, type);
+
+ prod = rxr->rx_prod;
+ for (i = 0; i < bp->rx_ring_size; i++) {
+ if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL) != 0) {
+ netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n",
+ ring_nr, i, bp->rx_ring_size);
+ break;
+ }
+ prod = NEXT_RX(prod);
+ }
+ rxr->rx_prod = prod;
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+
+ if (!(bp->flags & BNXT_FLAG_AGG_RINGS))
+ return 0;
+
+ ring = &rxr->rx_agg_ring_struct;
+
+ type = ((u32)PAGE_SIZE << RX_BD_LEN_SHIFT) |
+ RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP;
+
+ bnxt_init_rxbd_pages(ring, type);
+
+ prod = rxr->rx_agg_prod;
+ for (i = 0; i < bp->rx_agg_ring_size; i++) {
+ if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL) != 0) {
+ netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n",
+ ring_nr, i, bp->rx_ring_size);
+ break;
+ }
+ prod = NEXT_RX_AGG(prod);
+ }
+ rxr->rx_agg_prod = prod;
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+
+ if (bp->flags & BNXT_FLAG_TPA) {
+ if (rxr->rx_tpa) {
+ u8 *data;
+ dma_addr_t mapping;
+
+ for (i = 0; i < MAX_TPA; i++) {
+ data = __bnxt_alloc_rx_data(bp, &mapping,
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ rxr->rx_tpa[i].data = data;
+ rxr->rx_tpa[i].mapping = mapping;
+ }
+ } else {
+ netdev_err(bp->dev, "No resource allocated for LRO/GRO\n");
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+static int bnxt_init_rx_rings(struct bnxt *bp)
+{
+ int i, rc = 0;
+
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ rc = bnxt_init_one_rx_ring(bp, i);
+ if (rc)
+ break;
+ }
+
+ return rc;
+}
+
+static int bnxt_init_tx_rings(struct bnxt *bp)
+{
+ u16 i;
+
+ bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
+ MAX_SKB_FRAGS + 1);
+
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr = &bnapi->tx_ring;
+ struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
+
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+ }
+
+ return 0;
+}
+
+static void bnxt_free_ring_grps(struct bnxt *bp)
+{
+ kfree(bp->grp_info);
+ bp->grp_info = NULL;
+}
+
+static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init)
+{
+ int i;
+
+ if (irq_re_init) {
+ bp->grp_info = kcalloc(bp->cp_nr_rings,
+ sizeof(struct bnxt_ring_grp_info),
+ GFP_KERNEL);
+ if (!bp->grp_info)
+ return -ENOMEM;
+ }
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ if (irq_re_init)
+ bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID;
+ bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
+ }
+ return 0;
+}
+
+static void bnxt_free_vnics(struct bnxt *bp)
+{
+ kfree(bp->vnic_info);
+ bp->vnic_info = NULL;
+ bp->nr_vnics = 0;
+}
+
+static int bnxt_alloc_vnics(struct bnxt *bp)
+{
+ int num_vnics = 1;
+
+#ifdef CONFIG_RFS_ACCEL
+ if (bp->flags & BNXT_FLAG_RFS)
+ num_vnics += bp->rx_nr_rings;
+#endif
+
+ bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info),
+ GFP_KERNEL);
+ if (!bp->vnic_info)
+ return -ENOMEM;
+
+ bp->nr_vnics = num_vnics;
+ return 0;
+}
+
+static void bnxt_init_vnics(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < bp->nr_vnics; i++) {
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+
+ vnic->fw_vnic_id = INVALID_HW_RING_ID;
+ vnic->fw_rss_cos_lb_ctx = INVALID_HW_RING_ID;
+ vnic->fw_l2_ctx_id = INVALID_HW_RING_ID;
+
+ if (bp->vnic_info[i].rss_hash_key) {
+ if (i == 0)
+ prandom_bytes(vnic->rss_hash_key,
+ HW_HASH_KEY_SIZE);
+ else
+ memcpy(vnic->rss_hash_key,
+ bp->vnic_info[0].rss_hash_key,
+ HW_HASH_KEY_SIZE);
+ }
+ }
+}
+
+static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg)
+{
+ int pages;
+
+ pages = ring_size / desc_per_pg;
+
+ if (!pages)
+ return 1;
+
+ pages++;
+
+ while (pages & (pages - 1))
+ pages++;
+
+ return pages;
+}
+
+static void bnxt_set_tpa_flags(struct bnxt *bp)
+{
+ bp->flags &= ~BNXT_FLAG_TPA;
+ if (bp->dev->features & NETIF_F_LRO)
+ bp->flags |= BNXT_FLAG_LRO;
+ if ((bp->dev->features & NETIF_F_GRO) && (bp->pdev->revision > 0))
+ bp->flags |= BNXT_FLAG_GRO;
+}
+
+/* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must
+ * be set on entry.
+ */
+void bnxt_set_ring_params(struct bnxt *bp)
+{
+ u32 ring_size, rx_size, rx_space;
+ u32 agg_factor = 0, agg_ring_size = 0;
+
+ /* 8 for CRC and VLAN */
+ rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8);
+
+ rx_space = rx_size + NET_SKB_PAD +
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+ bp->rx_copy_thresh = BNXT_RX_COPY_THRESH;
+ ring_size = bp->rx_ring_size;
+ bp->rx_agg_ring_size = 0;
+ bp->rx_agg_nr_pages = 0;
+
+ if (bp->flags & BNXT_FLAG_TPA)
+ agg_factor = 4;
+
+ bp->flags &= ~BNXT_FLAG_JUMBO;
+ if (rx_space > PAGE_SIZE) {
+ u32 jumbo_factor;
+
+ bp->flags |= BNXT_FLAG_JUMBO;
+ jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
+ if (jumbo_factor > agg_factor)
+ agg_factor = jumbo_factor;
+ }
+ agg_ring_size = ring_size * agg_factor;
+
+ if (agg_ring_size) {
+ bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size,
+ RX_DESC_CNT);
+ if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) {
+ u32 tmp = agg_ring_size;
+
+ bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES;
+ agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1;
+ netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n",
+ tmp, agg_ring_size);
+ }
+ bp->rx_agg_ring_size = agg_ring_size;
+ bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1;
+ rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN);
+ rx_space = rx_size + NET_SKB_PAD +
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+ }
+
+ bp->rx_buf_use_size = rx_size;
+ bp->rx_buf_size = rx_space;
+
+ bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT);
+ bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1;
+
+ ring_size = bp->tx_ring_size;
+ bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT);
+ bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1;
+
+ ring_size = bp->rx_ring_size * (2 + agg_factor) + bp->tx_ring_size;
+ bp->cp_ring_size = ring_size;
+
+ bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT);
+ if (bp->cp_nr_pages > MAX_CP_PAGES) {
+ bp->cp_nr_pages = MAX_CP_PAGES;
+ bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1;
+ netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n",
+ ring_size, bp->cp_ring_size);
+ }
+ bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT;
+ bp->cp_ring_mask = bp->cp_bit - 1;
+}
+
+static void bnxt_free_vnic_attributes(struct bnxt *bp)
+{
+ int i;
+ struct bnxt_vnic_info *vnic;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (!bp->vnic_info)
+ return;
+
+ for (i = 0; i < bp->nr_vnics; i++) {
+ vnic = &bp->vnic_info[i];
+
+ kfree(vnic->fw_grp_ids);
+ vnic->fw_grp_ids = NULL;
+
+ kfree(vnic->uc_list);
+ vnic->uc_list = NULL;
+
+ if (vnic->mc_list) {
+ dma_free_coherent(&pdev->dev, vnic->mc_list_size,
+ vnic->mc_list, vnic->mc_list_mapping);
+ vnic->mc_list = NULL;
+ }
+
+ if (vnic->rss_table) {
+ dma_free_coherent(&pdev->dev, PAGE_SIZE,
+ vnic->rss_table,
+ vnic->rss_table_dma_addr);
+ vnic->rss_table = NULL;
+ }
+
+ vnic->rss_hash_key = NULL;
+ vnic->flags = 0;
+ }
+}
+
+static int bnxt_alloc_vnic_attributes(struct bnxt *bp)
+{
+ int i, rc = 0, size;
+ struct bnxt_vnic_info *vnic;
+ struct pci_dev *pdev = bp->pdev;
+ int max_rings;
+
+ for (i = 0; i < bp->nr_vnics; i++) {
+ vnic = &bp->vnic_info[i];
+
+ if (vnic->flags & BNXT_VNIC_UCAST_FLAG) {
+ int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN;
+
+ if (mem_size > 0) {
+ vnic->uc_list = kmalloc(mem_size, GFP_KERNEL);
+ if (!vnic->uc_list) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+ if (vnic->flags & BNXT_VNIC_MCAST_FLAG) {
+ vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN;
+ vnic->mc_list =
+ dma_alloc_coherent(&pdev->dev,
+ vnic->mc_list_size,
+ &vnic->mc_list_mapping,
+ GFP_KERNEL);
+ if (!vnic->mc_list) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ }
+
+ if (vnic->flags & BNXT_VNIC_RSS_FLAG)
+ max_rings = bp->rx_nr_rings;
+ else
+ max_rings = 1;
+
+ vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL);
+ if (!vnic->fw_grp_ids) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* Allocate rss table and hash key */
+ vnic->rss_table = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
+ &vnic->rss_table_dma_addr,
+ GFP_KERNEL);
+ if (!vnic->rss_table) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16));
+
+ vnic->rss_hash_key = ((void *)vnic->rss_table) + size;
+ vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size;
+ }
+ return 0;
+
+out:
+ return rc;
+}
+
+static void bnxt_free_hwrm_resources(struct bnxt *bp)
+{
+ struct pci_dev *pdev = bp->pdev;
+
+ dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr,
+ bp->hwrm_cmd_resp_dma_addr);
+
+ bp->hwrm_cmd_resp_addr = NULL;
+ if (bp->hwrm_dbg_resp_addr) {
+ dma_free_coherent(&pdev->dev, HWRM_DBG_REG_BUF_SIZE,
+ bp->hwrm_dbg_resp_addr,
+ bp->hwrm_dbg_resp_dma_addr);
+
+ bp->hwrm_dbg_resp_addr = NULL;
+ }
+}
+
+static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
+{
+ struct pci_dev *pdev = bp->pdev;
+
+ bp->hwrm_cmd_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
+ &bp->hwrm_cmd_resp_dma_addr,
+ GFP_KERNEL);
+ if (!bp->hwrm_cmd_resp_addr)
+ return -ENOMEM;
+ bp->hwrm_dbg_resp_addr = dma_alloc_coherent(&pdev->dev,
+ HWRM_DBG_REG_BUF_SIZE,
+ &bp->hwrm_dbg_resp_dma_addr,
+ GFP_KERNEL);
+ if (!bp->hwrm_dbg_resp_addr)
+ netdev_warn(bp->dev, "fail to alloc debug register dma mem\n");
+
+ return 0;
+}
+
+static void bnxt_free_stats(struct bnxt *bp)
+{
+ u32 size, i;
+ struct pci_dev *pdev = bp->pdev;
+
+ if (!bp->bnapi)
+ return;
+
+ size = sizeof(struct ctx_hw_stats);
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ if (cpr->hw_stats) {
+ dma_free_coherent(&pdev->dev, size, cpr->hw_stats,
+ cpr->hw_stats_map);
+ cpr->hw_stats = NULL;
+ }
+ }
+}
+
+static int bnxt_alloc_stats(struct bnxt *bp)
+{
+ u32 size, i;
+ struct pci_dev *pdev = bp->pdev;
+
+ size = sizeof(struct ctx_hw_stats);
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ cpr->hw_stats = dma_alloc_coherent(&pdev->dev, size,
+ &cpr->hw_stats_map,
+ GFP_KERNEL);
+ if (!cpr->hw_stats)
+ return -ENOMEM;
+
+ cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
+ }
+ return 0;
+}
+
+static void bnxt_clear_ring_indices(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr;
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_tx_ring_info *txr;
+
+ if (!bnapi)
+ continue;
+
+ cpr = &bnapi->cp_ring;
+ cpr->cp_raw_cons = 0;
+
+ txr = &bnapi->tx_ring;
+ txr->tx_prod = 0;
+ txr->tx_cons = 0;
+
+ rxr = &bnapi->rx_ring;
+ rxr->rx_prod = 0;
+ rxr->rx_agg_prod = 0;
+ rxr->rx_sw_agg_prod = 0;
+ }
+}
+
+static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit)
+{
+#ifdef CONFIG_RFS_ACCEL
+ int i;
+
+ /* Under rtnl_lock and all our NAPIs have been disabled. It's
+ * safe to delete the hash table.
+ */
+ for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
+ struct hlist_head *head;
+ struct hlist_node *tmp;
+ struct bnxt_ntuple_filter *fltr;
+
+ head = &bp->ntp_fltr_hash_tbl[i];
+ hlist_for_each_entry_safe(fltr, tmp, head, hash) {
+ hlist_del(&fltr->hash);
+ kfree(fltr);
+ }
+ }
+ if (irq_reinit) {
+ kfree(bp->ntp_fltr_bmap);
+ bp->ntp_fltr_bmap = NULL;
+ }
+ bp->ntp_fltr_count = 0;
+#endif
+}
+
+static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
+{
+#ifdef CONFIG_RFS_ACCEL
+ int i, rc = 0;
+
+ if (!(bp->flags & BNXT_FLAG_RFS))
+ return 0;
+
+ for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++)
+ INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
+
+ bp->ntp_fltr_count = 0;
+ bp->ntp_fltr_bmap = kzalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
+ GFP_KERNEL);
+
+ if (!bp->ntp_fltr_bmap)
+ rc = -ENOMEM;
+
+ return rc;
+#else
+ return 0;
+#endif
+}
+
+static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init)
+{
+ bnxt_free_vnic_attributes(bp);
+ bnxt_free_tx_rings(bp);
+ bnxt_free_rx_rings(bp);
+ bnxt_free_cp_rings(bp);
+ bnxt_free_ntp_fltrs(bp, irq_re_init);
+ if (irq_re_init) {
+ bnxt_free_stats(bp);
+ bnxt_free_ring_grps(bp);
+ bnxt_free_vnics(bp);
+ kfree(bp->bnapi);
+ bp->bnapi = NULL;
+ } else {
+ bnxt_clear_ring_indices(bp);
+ }
+}
+
+static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
+{
+ int i, rc, size, arr_size;
+ void *bnapi;
+
+ if (irq_re_init) {
+ /* Allocate bnapi mem pointer array and mem block for
+ * all queues
+ */
+ arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) *
+ bp->cp_nr_rings);
+ size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi));
+ bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL);
+ if (!bnapi)
+ return -ENOMEM;
+
+ bp->bnapi = bnapi;
+ bnapi += arr_size;
+ for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) {
+ bp->bnapi[i] = bnapi;
+ bp->bnapi[i]->index = i;
+ bp->bnapi[i]->bp = bp;
+ }
+
+ rc = bnxt_alloc_stats(bp);
+ if (rc)
+ goto alloc_mem_err;
+
+ rc = bnxt_alloc_ntp_fltrs(bp);
+ if (rc)
+ goto alloc_mem_err;
+
+ rc = bnxt_alloc_vnics(bp);
+ if (rc)
+ goto alloc_mem_err;
+ }
+
+ bnxt_init_ring_struct(bp);
+
+ rc = bnxt_alloc_rx_rings(bp);
+ if (rc)
+ goto alloc_mem_err;
+
+ rc = bnxt_alloc_tx_rings(bp);
+ if (rc)
+ goto alloc_mem_err;
+
+ rc = bnxt_alloc_cp_rings(bp);
+ if (rc)
+ goto alloc_mem_err;
+
+ bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG |
+ BNXT_VNIC_UCAST_FLAG;
+ rc = bnxt_alloc_vnic_attributes(bp);
+ if (rc)
+ goto alloc_mem_err;
+ return 0;
+
+alloc_mem_err:
+ bnxt_free_mem(bp, true);
+ return rc;
+}
+
+void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type,
+ u16 cmpl_ring, u16 target_id)
+{
+ struct hwrm_cmd_req_hdr *req = request;
+
+ req->cmpl_ring_req_type =
+ cpu_to_le32(req_type | (cmpl_ring << HWRM_CMPL_RING_SFT));
+ req->target_id_seq_id = cpu_to_le32(target_id << HWRM_TARGET_FID_SFT);
+ req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
+}
+
+int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
+{
+ int i, intr_process, rc;
+ struct hwrm_cmd_req_hdr *req = msg;
+ u32 *data = msg;
+ __le32 *resp_len, *valid;
+ u16 cp_ring_id, len = 0;
+ struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr;
+
+ req->target_id_seq_id |= cpu_to_le32(bp->hwrm_cmd_seq++);
+ memset(resp, 0, PAGE_SIZE);
+ cp_ring_id = (le32_to_cpu(req->cmpl_ring_req_type) &
+ HWRM_CMPL_RING_MASK) >>
+ HWRM_CMPL_RING_SFT;
+ intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1;
+
+ /* Write request msg to hwrm channel */
+ __iowrite32_copy(bp->bar0, data, msg_len / 4);
+
+ /* currently supports only one outstanding message */
+ if (intr_process)
+ bp->hwrm_intr_seq_id = le32_to_cpu(req->target_id_seq_id) &
+ HWRM_SEQ_ID_MASK;
+
+ /* Ring channel doorbell */
+ writel(1, bp->bar0 + 0x100);
+
+ i = 0;
+ if (intr_process) {
+ /* Wait until hwrm response cmpl interrupt is processed */
+ while (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID &&
+ i++ < timeout) {
+ usleep_range(600, 800);
+ }
+
+ if (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID) {
+ netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n",
+ req->cmpl_ring_req_type);
+ return -1;
+ }
+ } else {
+ /* Check if response len is updated */
+ resp_len = bp->hwrm_cmd_resp_addr + HWRM_RESP_LEN_OFFSET;
+ for (i = 0; i < timeout; i++) {
+ len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
+ HWRM_RESP_LEN_SFT;
+ if (len)
+ break;
+ usleep_range(600, 800);
+ }
+
+ if (i >= timeout) {
+ netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n",
+ timeout, req->cmpl_ring_req_type,
+ req->target_id_seq_id, *resp_len);
+ return -1;
+ }
+
+ /* Last word of resp contains valid bit */
+ valid = bp->hwrm_cmd_resp_addr + len - 4;
+ for (i = 0; i < timeout; i++) {
+ if (le32_to_cpu(*valid) & HWRM_RESP_VALID_MASK)
+ break;
+ usleep_range(600, 800);
+ }
+
+ if (i >= timeout) {
+ netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n",
+ timeout, req->cmpl_ring_req_type,
+ req->target_id_seq_id, len, *valid);
+ return -1;
+ }
+ }
+
+ rc = le16_to_cpu(resp->error_code);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n",
+ le16_to_cpu(resp->req_type),
+ le16_to_cpu(resp->seq_id), rc);
+ return rc;
+ }
+ return 0;
+}
+
+int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
+{
+ int rc;
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, msg, msg_len, timeout);
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp)
+{
+ struct hwrm_func_drv_rgtr_input req = {0};
+ int i;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1);
+
+ req.enables =
+ cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE |
+ FUNC_DRV_RGTR_REQ_ENABLES_VER |
+ FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);
+
+ /* TODO: current async event fwd bits are not defined and the firmware
+ * only checks if it is non-zero to enable async event forwarding
+ */
+ req.async_event_fwd[0] |= cpu_to_le32(1);
+ req.os_type = cpu_to_le16(1);
+ req.ver_maj = DRV_VER_MAJ;
+ req.ver_min = DRV_VER_MIN;
+ req.ver_upd = DRV_VER_UPD;
+
+ if (BNXT_PF(bp)) {
+ DECLARE_BITMAP(vf_req_snif_bmap, 256);
+ u32 *data = (u32 *)vf_req_snif_bmap;
+
+ memset(vf_req_snif_bmap, 0, sizeof(vf_req_snif_bmap));
+ for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++)
+ __set_bit(bnxt_vf_req_snif[i], vf_req_snif_bmap);
+
+ for (i = 0; i < 8; i++)
+ req.vf_req_fwd[i] = cpu_to_le32(data[i]);
+
+ req.enables |=
+ cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD);
+ }
+
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
+{
+ u32 rc = 0;
+ struct hwrm_tunnel_dst_port_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_FREE, -1, -1);
+ req.tunnel_type = tunnel_type;
+
+ switch (tunnel_type) {
+ case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
+ req.tunnel_dst_port_id = bp->vxlan_fw_dst_port_id;
+ break;
+ case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
+ req.tunnel_dst_port_id = bp->nge_fw_dst_port_id;
+ break;
+ default:
+ break;
+ }
+
+ rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc)
+ netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n",
+ rc);
+ return rc;
+}
+
+static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,
+ u8 tunnel_type)
+{
+ u32 rc = 0;
+ struct hwrm_tunnel_dst_port_alloc_input req = {0};
+ struct hwrm_tunnel_dst_port_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_ALLOC, -1, -1);
+
+ req.tunnel_type = tunnel_type;
+ req.tunnel_dst_port_val = port;
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n",
+ rc);
+ goto err_out;
+ }
+
+ if (tunnel_type & TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN)
+ bp->vxlan_fw_dst_port_id = resp->tunnel_dst_port_id;
+
+ else if (tunnel_type & TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE)
+ bp->nge_fw_dst_port_id = resp->tunnel_dst_port_id;
+err_out:
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id)
+{
+ struct hwrm_cfa_l2_set_rx_mask_input req = {0};
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_SET_RX_MASK, -1, -1);
+ req.dflt_vnic_id = cpu_to_le32(vnic->fw_vnic_id);
+
+ req.num_mc_entries = cpu_to_le32(vnic->mc_list_count);
+ req.mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping);
+ req.mask = cpu_to_le32(vnic->rx_mask);
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+#ifdef CONFIG_RFS_ACCEL
+static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
+ struct bnxt_ntuple_filter *fltr)
+{
+ struct hwrm_cfa_ntuple_filter_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_FREE, -1, -1);
+ req.ntuple_filter_id = fltr->filter_id;
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+#define BNXT_NTP_FLTR_FLAGS \
+ (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \
+ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_VNIC_ID)
+
+static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
+ struct bnxt_ntuple_filter *fltr)
+{
+ int rc = 0;
+ struct hwrm_cfa_ntuple_filter_alloc_input req = {0};
+ struct hwrm_cfa_ntuple_filter_alloc_output *resp =
+ bp->hwrm_cmd_resp_addr;
+ struct flow_keys *keys = &fltr->fkeys;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[fltr->rxq + 1];
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_ALLOC, -1, -1);
+ req.l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[0];
+
+ req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
+
+ req.ethertype = htons(ETH_P_IP);
+ memcpy(req.src_macaddr, fltr->src_mac_addr, ETH_ALEN);
+ req.ipaddr_type = 4;
+ req.ip_protocol = keys->basic.ip_proto;
+
+ req.src_ipaddr[0] = keys->addrs.v4addrs.src;
+ req.src_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
+ req.dst_ipaddr[0] = keys->addrs.v4addrs.dst;
+ req.dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
+
+ req.src_port = keys->ports.src;
+ req.src_port_mask = cpu_to_be16(0xffff);
+ req.dst_port = keys->ports.dst;
+ req.dst_port_mask = cpu_to_be16(0xffff);
+
+ req.dst_vnic_id = cpu_to_le16(vnic->fw_vnic_id);
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (!rc)
+ fltr->filter_id = resp->ntuple_filter_id;
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+#endif
+
+static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx,
+ u8 *mac_addr)
+{
+ u32 rc = 0;
+ struct hwrm_cfa_l2_filter_alloc_input req = {0};
+ struct hwrm_cfa_l2_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_ALLOC, -1, -1);
+ req.flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX |
+ CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST);
+ req.dst_vnic_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id);
+ req.enables =
+ cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR |
+ CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_VNIC_ID |
+ CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK);
+ memcpy(req.l2_addr, mac_addr, ETH_ALEN);
+ req.l2_addr_mask[0] = 0xff;
+ req.l2_addr_mask[1] = 0xff;
+ req.l2_addr_mask[2] = 0xff;
+ req.l2_addr_mask[3] = 0xff;
+ req.l2_addr_mask[4] = 0xff;
+ req.l2_addr_mask[5] = 0xff;
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (!rc)
+ bp->vnic_info[vnic_id].fw_l2_filter_id[idx] =
+ resp->l2_filter_id;
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp)
+{
+ u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */
+ int rc = 0;
+
+ /* Any associated ntuple filters will also be cleared by firmware. */
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < num_of_vnics; i++) {
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+
+ for (j = 0; j < vnic->uc_filter_count; j++) {
+ struct hwrm_cfa_l2_filter_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req,
+ HWRM_CFA_L2_FILTER_FREE, -1, -1);
+
+ req.l2_filter_id = vnic->fw_l2_filter_id[j];
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ }
+ vnic->uc_filter_count = 0;
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+
+ return rc;
+}
+
+static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
+{
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+ struct hwrm_vnic_tpa_cfg_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_TPA_CFG, -1, -1);
+
+ if (tpa_flags) {
+ u16 mss = bp->dev->mtu - 40;
+ u32 nsegs, n, segs = 0, flags;
+
+ flags = VNIC_TPA_CFG_REQ_FLAGS_TPA |
+ VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA |
+ VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE |
+ VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN |
+ VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ;
+ if (tpa_flags & BNXT_FLAG_GRO)
+ flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO;
+
+ req.flags = cpu_to_le32(flags);
+
+ req.enables =
+ cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS |
+ VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS);
+
+ /* Number of segs are log2 units, and first packet is not
+ * included as part of this units.
+ */
+ if (mss <= PAGE_SIZE) {
+ n = PAGE_SIZE / mss;
+ nsegs = (MAX_SKB_FRAGS - 1) * n;
+ } else {
+ n = mss / PAGE_SIZE;
+ if (mss & (PAGE_SIZE - 1))
+ n++;
+ nsegs = (MAX_SKB_FRAGS - n) / n;
+ }
+
+ segs = ilog2(nsegs);
+ req.max_agg_segs = cpu_to_le16(segs);
+ req.max_aggs = cpu_to_le16(VNIC_TPA_CFG_REQ_MAX_AGGS_MAX);
+ }
+ req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
+
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss)
+{
+ u32 i, j, max_rings;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+ struct hwrm_vnic_rss_cfg_input req = {0};
+
+ if (vnic->fw_rss_cos_lb_ctx == INVALID_HW_RING_ID)
+ return 0;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1);
+ if (set_rss) {
+ vnic->hash_type = BNXT_RSS_HASH_TYPE_FLAG_IPV4 |
+ BNXT_RSS_HASH_TYPE_FLAG_TCP_IPV4 |
+ BNXT_RSS_HASH_TYPE_FLAG_IPV6 |
+ BNXT_RSS_HASH_TYPE_FLAG_TCP_IPV6;
+
+ req.hash_type = cpu_to_le32(vnic->hash_type);
+
+ if (vnic->flags & BNXT_VNIC_RSS_FLAG)
+ max_rings = bp->rx_nr_rings;
+ else
+ max_rings = 1;
+
+ /* Fill the RSS indirection table with ring group ids */
+ for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++, j++) {
+ if (j == max_rings)
+ j = 0;
+ vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]);
+ }
+
+ req.ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr);
+ req.hash_key_tbl_addr =
+ cpu_to_le64(vnic->rss_hash_key_dma_addr);
+ }
+ req.rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx);
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id)
+{
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+ struct hwrm_vnic_plcmodes_cfg_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_PLCMODES_CFG, -1, -1);
+ req.flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT |
+ VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 |
+ VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6);
+ req.enables =
+ cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID |
+ VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID);
+ /* thresholds not implemented in firmware yet */
+ req.jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh);
+ req.hds_threshold = cpu_to_le16(bp->rx_copy_thresh);
+ req.vnic_id = cpu_to_le32(vnic->fw_vnic_id);
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id)
+{
+ struct hwrm_vnic_rss_cos_lb_ctx_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_FREE, -1, -1);
+ req.rss_cos_lb_ctx_id =
+ cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx);
+
+ hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx = INVALID_HW_RING_ID;
+}
+
+static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < bp->nr_vnics; i++) {
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+
+ if (vnic->fw_rss_cos_lb_ctx != INVALID_HW_RING_ID)
+ bnxt_hwrm_vnic_ctx_free_one(bp, i);
+ }
+ bp->rsscos_nr_ctxs = 0;
+}
+
+static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id)
+{
+ int rc;
+ struct hwrm_vnic_rss_cos_lb_ctx_alloc_input req = {0};
+ struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp =
+ bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC, -1,
+ -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (!rc)
+ bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx =
+ le16_to_cpu(resp->rss_cos_lb_ctx_id);
+ mutex_unlock(&bp->hwrm_cmd_lock);
+
+ return rc;
+}
+
+static int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id)
+{
+ int grp_idx = 0;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+ struct hwrm_vnic_cfg_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_CFG, -1, -1);
+ /* Only RSS support for now TBD: COS & LB */
+ req.enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP |
+ VNIC_CFG_REQ_ENABLES_RSS_RULE);
+ req.rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx);
+ req.cos_rule = cpu_to_le16(0xffff);
+ if (vnic->flags & BNXT_VNIC_RSS_FLAG)
+ grp_idx = 0;
+ else if (vnic->flags & BNXT_VNIC_RFS_FLAG)
+ grp_idx = vnic_id - 1;
+
+ req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
+ req.dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id);
+
+ req.lb_rule = cpu_to_le16(0xffff);
+ req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN +
+ VLAN_HLEN);
+
+ if (bp->flags & BNXT_FLAG_STRIP_VLAN)
+ req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE);
+
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static int bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id)
+{
+ u32 rc = 0;
+
+ if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) {
+ struct hwrm_vnic_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_FREE, -1, -1);
+ req.vnic_id =
+ cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id);
+
+ rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc)
+ return rc;
+ bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID;
+ }
+ return rc;
+}
+
+static void bnxt_hwrm_vnic_free(struct bnxt *bp)
+{
+ u16 i;
+
+ for (i = 0; i < bp->nr_vnics; i++)
+ bnxt_hwrm_vnic_free_one(bp, i);
+}
+
+static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id, u16 start_grp_id,
+ u16 end_grp_id)
+{
+ u32 rc = 0, i, j;
+ struct hwrm_vnic_alloc_input req = {0};
+ struct hwrm_vnic_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+ /* map ring groups to this vnic */
+ for (i = start_grp_id, j = 0; i < end_grp_id; i++, j++) {
+ if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID) {
+ netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n",
+ j, (end_grp_id - start_grp_id));
+ break;
+ }
+ bp->vnic_info[vnic_id].fw_grp_ids[j] =
+ bp->grp_info[i].fw_grp_id;
+ }
+
+ bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx = INVALID_HW_RING_ID;
+ if (vnic_id == 0)
+ req.flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT);
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_ALLOC, -1, -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (!rc)
+ bp->vnic_info[vnic_id].fw_vnic_id = le32_to_cpu(resp->vnic_id);
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp)
+{
+ u16 i;
+ u32 rc = 0;
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct hwrm_ring_grp_alloc_input req = {0};
+ struct hwrm_ring_grp_alloc_output *resp =
+ bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_ALLOC, -1, -1);
+
+ req.cr = cpu_to_le16(bp->grp_info[i].cp_fw_ring_id);
+ req.rr = cpu_to_le16(bp->grp_info[i].rx_fw_ring_id);
+ req.ar = cpu_to_le16(bp->grp_info[i].agg_fw_ring_id);
+ req.sc = cpu_to_le16(bp->grp_info[i].fw_stats_ctx);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ if (rc)
+ break;
+
+ bp->grp_info[i].fw_grp_id = le32_to_cpu(resp->ring_group_id);
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_ring_grp_free(struct bnxt *bp)
+{
+ u16 i;
+ u32 rc = 0;
+ struct hwrm_ring_grp_free_input req = {0};
+
+ if (!bp->grp_info)
+ return 0;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_FREE, -1, -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID)
+ continue;
+ req.ring_group_id =
+ cpu_to_le32(bp->grp_info[i].fw_grp_id);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ if (rc)
+ break;
+ bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
+ struct bnxt_ring_struct *ring,
+ u32 ring_type, u32 map_index,
+ u32 stats_ctx_id)
+{
+ int rc = 0, err = 0;
+ struct hwrm_ring_alloc_input req = {0};
+ struct hwrm_ring_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+ u16 ring_id;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_ALLOC, -1, -1);
+
+ req.enables = 0;
+ if (ring->nr_pages > 1) {
+ req.page_tbl_addr = cpu_to_le64(ring->pg_tbl_map);
+ /* Page size is in log2 units */
+ req.page_size = BNXT_PAGE_SHIFT;
+ req.page_tbl_depth = 1;
+ } else {
+ req.page_tbl_addr = cpu_to_le64(ring->dma_arr[0]);
+ }
+ req.fbo = 0;
+ /* Association of ring index with doorbell index and MSIX number */
+ req.logical_id = cpu_to_le16(map_index);
+
+ switch (ring_type) {
+ case HWRM_RING_ALLOC_TX:
+ req.ring_type = RING_ALLOC_REQ_RING_TYPE_TX;
+ /* Association of transmit ring with completion ring */
+ req.cmpl_ring_id =
+ cpu_to_le16(bp->grp_info[map_index].cp_fw_ring_id);
+ req.length = cpu_to_le32(bp->tx_ring_mask + 1);
+ req.stat_ctx_id = cpu_to_le32(stats_ctx_id);
+ req.queue_id = cpu_to_le16(ring->queue_id);
+ break;
+ case HWRM_RING_ALLOC_RX:
+ req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
+ req.length = cpu_to_le32(bp->rx_ring_mask + 1);
+ break;
+ case HWRM_RING_ALLOC_AGG:
+ req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
+ req.length = cpu_to_le32(bp->rx_agg_ring_mask + 1);
+ break;
+ case HWRM_RING_ALLOC_CMPL:
+ req.ring_type = RING_ALLOC_REQ_RING_TYPE_CMPL;
+ req.length = cpu_to_le32(bp->cp_ring_mask + 1);
+ if (bp->flags & BNXT_FLAG_USING_MSIX)
+ req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
+ break;
+ default:
+ netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n",
+ ring_type);
+ return -1;
+ }
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ err = le16_to_cpu(resp->error_code);
+ ring_id = le16_to_cpu(resp->ring_id);
+ mutex_unlock(&bp->hwrm_cmd_lock);
+
+ if (rc || err) {
+ switch (ring_type) {
+ case RING_FREE_REQ_RING_TYPE_CMPL:
+ netdev_err(bp->dev, "hwrm_ring_alloc cp failed. rc:%x err:%x\n",
+ rc, err);
+ return -1;
+
+ case RING_FREE_REQ_RING_TYPE_RX:
+ netdev_err(bp->dev, "hwrm_ring_alloc rx failed. rc:%x err:%x\n",
+ rc, err);
+ return -1;
+
+ case RING_FREE_REQ_RING_TYPE_TX:
+ netdev_err(bp->dev, "hwrm_ring_alloc tx failed. rc:%x err:%x\n",
+ rc, err);
+ return -1;
+
+ default:
+ netdev_err(bp->dev, "Invalid ring\n");
+ return -1;
+ }
+ }
+ ring->fw_ring_id = ring_id;
+ return rc;
+}
+
+static int bnxt_hwrm_ring_alloc(struct bnxt *bp)
+{
+ int i, rc = 0;
+
+ if (bp->cp_nr_rings) {
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
+
+ rc = hwrm_ring_alloc_send_msg(bp, ring,
+ HWRM_RING_ALLOC_CMPL, i,
+ INVALID_STATS_CTX_ID);
+ if (rc)
+ goto err_out;
+ cpr->cp_doorbell = bp->bar1 + i * 0x80;
+ BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
+ bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id;
+ }
+ }
+
+ if (bp->tx_nr_rings) {
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr = &bnapi->tx_ring;
+ struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
+ u16 fw_stats_ctx = bp->grp_info[i].fw_stats_ctx;
+
+ rc = hwrm_ring_alloc_send_msg(bp, ring,
+ HWRM_RING_ALLOC_TX, i,
+ fw_stats_ctx);
+ if (rc)
+ goto err_out;
+ txr->tx_doorbell = bp->bar1 + i * 0x80;
+ }
+ }
+
+ if (bp->rx_nr_rings) {
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
+
+ rc = hwrm_ring_alloc_send_msg(bp, ring,
+ HWRM_RING_ALLOC_RX, i,
+ INVALID_STATS_CTX_ID);
+ if (rc)
+ goto err_out;
+ rxr->rx_doorbell = bp->bar1 + i * 0x80;
+ writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
+ bp->grp_info[i].rx_fw_ring_id = ring->fw_ring_id;
+ }
+ }
+
+ if (bp->flags & BNXT_FLAG_AGG_RINGS) {
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ struct bnxt_ring_struct *ring =
+ &rxr->rx_agg_ring_struct;
+
+ rc = hwrm_ring_alloc_send_msg(bp, ring,
+ HWRM_RING_ALLOC_AGG,
+ bp->rx_nr_rings + i,
+ INVALID_STATS_CTX_ID);
+ if (rc)
+ goto err_out;
+
+ rxr->rx_agg_doorbell =
+ bp->bar1 + (bp->rx_nr_rings + i) * 0x80;
+ writel(DB_KEY_RX | rxr->rx_agg_prod,
+ rxr->rx_agg_doorbell);
+ bp->grp_info[i].agg_fw_ring_id = ring->fw_ring_id;
+ }
+ }
+err_out:
+ return rc;
+}
+
+static int hwrm_ring_free_send_msg(struct bnxt *bp,
+ struct bnxt_ring_struct *ring,
+ u32 ring_type, int cmpl_ring_id)
+{
+ int rc;
+ struct hwrm_ring_free_input req = {0};
+ struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
+ u16 error_code;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, -1, -1);
+ req.ring_type = ring_type;
+ req.ring_id = cpu_to_le16(ring->fw_ring_id);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ error_code = le16_to_cpu(resp->error_code);
+ mutex_unlock(&bp->hwrm_cmd_lock);
+
+ if (rc || error_code) {
+ switch (ring_type) {
+ case RING_FREE_REQ_RING_TYPE_CMPL:
+ netdev_err(bp->dev, "hwrm_ring_free cp failed. rc:%d\n",
+ rc);
+ return rc;
+ case RING_FREE_REQ_RING_TYPE_RX:
+ netdev_err(bp->dev, "hwrm_ring_free rx failed. rc:%d\n",
+ rc);
+ return rc;
+ case RING_FREE_REQ_RING_TYPE_TX:
+ netdev_err(bp->dev, "hwrm_ring_free tx failed. rc:%d\n",
+ rc);
+ return rc;
+ default:
+ netdev_err(bp->dev, "Invalid ring\n");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path)
+{
+ int i, rc = 0;
+
+ if (!bp->bnapi)
+ return 0;
+
+ if (bp->tx_nr_rings) {
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_tx_ring_info *txr = &bnapi->tx_ring;
+ struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
+ u32 cmpl_ring_id = bp->grp_info[i].cp_fw_ring_id;
+
+ if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+ hwrm_ring_free_send_msg(
+ bp, ring,
+ RING_FREE_REQ_RING_TYPE_TX,
+ close_path ? cmpl_ring_id :
+ INVALID_HW_RING_ID);
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+ }
+ }
+ }
+
+ if (bp->rx_nr_rings) {
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
+ u32 cmpl_ring_id = bp->grp_info[i].cp_fw_ring_id;
+
+ if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+ hwrm_ring_free_send_msg(
+ bp, ring,
+ RING_FREE_REQ_RING_TYPE_RX,
+ close_path ? cmpl_ring_id :
+ INVALID_HW_RING_ID);
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].rx_fw_ring_id =
+ INVALID_HW_RING_ID;
+ }
+ }
+ }
+
+ if (bp->rx_agg_nr_pages) {
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_rx_ring_info *rxr = &bnapi->rx_ring;
+ struct bnxt_ring_struct *ring =
+ &rxr->rx_agg_ring_struct;
+ u32 cmpl_ring_id = bp->grp_info[i].cp_fw_ring_id;
+
+ if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+ hwrm_ring_free_send_msg(
+ bp, ring,
+ RING_FREE_REQ_RING_TYPE_RX,
+ close_path ? cmpl_ring_id :
+ INVALID_HW_RING_ID);
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].agg_fw_ring_id =
+ INVALID_HW_RING_ID;
+ }
+ }
+ }
+
+ if (bp->cp_nr_rings) {
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
+
+ if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+ hwrm_ring_free_send_msg(
+ bp, ring,
+ RING_FREE_REQ_RING_TYPE_CMPL,
+ INVALID_HW_RING_ID);
+ ring->fw_ring_id = INVALID_HW_RING_ID;
+ bp->grp_info[i].cp_fw_ring_id =
+ INVALID_HW_RING_ID;
+ }
+ }
+ }
+
+ return rc;
+}
+
+int bnxt_hwrm_set_coal(struct bnxt *bp)
+{
+ int i, rc = 0;
+ struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req = {0};
+ u16 max_buf, max_buf_irq;
+ u16 buf_tmr, buf_tmr_irq;
+ u32 flags;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS,
+ -1, -1);
+
+ /* Each rx completion (2 records) should be DMAed immediately */
+ max_buf = min_t(u16, bp->coal_bufs / 4, 2);
+ /* max_buf must not be zero */
+ max_buf = clamp_t(u16, max_buf, 1, 63);
+ max_buf_irq = clamp_t(u16, bp->coal_bufs_irq, 1, 63);
+ buf_tmr = max_t(u16, bp->coal_ticks / 4, 1);
+ buf_tmr_irq = max_t(u16, bp->coal_ticks_irq, 1);
+
+ flags = RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET;
+
+ /* RING_IDLE generates more IRQs for lower latency. Enable it only
+ * if coal_ticks is less than 25 us.
+ */
+ if (BNXT_COAL_TIMER_TO_USEC(bp->coal_ticks) < 25)
+ flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE;
+
+ req.flags = cpu_to_le16(flags);
+ req.num_cmpl_dma_aggr = cpu_to_le16(max_buf);
+ req.num_cmpl_dma_aggr_during_int = cpu_to_le16(max_buf_irq);
+ req.cmpl_aggr_dma_tmr = cpu_to_le16(buf_tmr);
+ req.cmpl_aggr_dma_tmr_during_int = cpu_to_le16(buf_tmr_irq);
+ req.int_lat_tmr_min = cpu_to_le16(buf_tmr);
+ req.int_lat_tmr_max = cpu_to_le16(bp->coal_ticks);
+ req.num_cmpl_aggr_int = cpu_to_le16(bp->coal_bufs);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ req.ring_id = cpu_to_le16(bp->grp_info[i].cp_fw_ring_id);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ if (rc)
+ break;
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_stat_ctx_free(struct bnxt *bp)
+{
+ int rc = 0, i;
+ struct hwrm_stat_ctx_free_input req = {0};
+
+ if (!bp->bnapi)
+ return 0;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_FREE, -1, -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) {
+ req.stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ if (rc)
+ break;
+
+ cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
+ }
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp)
+{
+ int rc = 0, i;
+ struct hwrm_stat_ctx_alloc_input req = {0};
+ struct hwrm_stat_ctx_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_ALLOC, -1, -1);
+
+ req.update_period_ms = cpu_to_le32(1000);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ req.stats_dma_addr = cpu_to_le64(cpr->hw_stats_map);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ if (rc)
+ break;
+
+ cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id);
+
+ bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return 0;
+}
+
+static int bnxt_hwrm_func_qcaps(struct bnxt *bp)
+{
+ int rc = 0;
+ struct hwrm_func_qcaps_input req = {0};
+ struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
+ req.fid = cpu_to_le16(0xffff);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc)
+ goto hwrm_func_qcaps_exit;
+
+ if (BNXT_PF(bp)) {
+ struct bnxt_pf_info *pf = &bp->pf;
+
+ pf->fw_fid = le16_to_cpu(resp->fid);
+ pf->port_id = le16_to_cpu(resp->port_id);
+ memcpy(pf->mac_addr, resp->perm_mac_address, ETH_ALEN);
+ memcpy(bp->dev->dev_addr, pf->mac_addr, ETH_ALEN);
+ pf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
+ pf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
+ pf->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
+ pf->max_pf_tx_rings = pf->max_tx_rings;
+ pf->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
+ pf->max_pf_rx_rings = pf->max_rx_rings;
+ pf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
+ pf->max_vnics = le16_to_cpu(resp->max_vnics);
+ pf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
+ pf->first_vf_id = le16_to_cpu(resp->first_vf_id);
+ pf->max_vfs = le16_to_cpu(resp->max_vfs);
+ pf->max_encap_records = le32_to_cpu(resp->max_encap_records);
+ pf->max_decap_records = le32_to_cpu(resp->max_decap_records);
+ pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows);
+ pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows);
+ pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows);
+ pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows);
+ } else {
+#ifdef CONFIG_BNXT_SRIOV
+ struct bnxt_vf_info *vf = &bp->vf;
+
+ vf->fw_fid = le16_to_cpu(resp->fid);
+ memcpy(vf->mac_addr, resp->perm_mac_address, ETH_ALEN);
+ if (is_valid_ether_addr(vf->mac_addr))
+ /* overwrite netdev dev_adr with admin VF MAC */
+ memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN);
+ else
+ random_ether_addr(bp->dev->dev_addr);
+
+ vf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
+ vf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
+ vf->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
+ vf->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
+ vf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
+ vf->max_vnics = le16_to_cpu(resp->max_vnics);
+ vf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
+#endif
+ }
+
+ bp->tx_push_thresh = 0;
+ if (resp->flags &
+ cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED))
+ bp->tx_push_thresh = BNXT_TX_PUSH_THRESH;
+
+hwrm_func_qcaps_exit:
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_func_reset(struct bnxt *bp)
+{
+ struct hwrm_func_reset_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESET, -1, -1);
+ req.enables = 0;
+
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_RESET_TIMEOUT);
+}
+
+static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
+{
+ int rc = 0;
+ struct hwrm_queue_qportcfg_input req = {0};
+ struct hwrm_queue_qportcfg_output *resp = bp->hwrm_cmd_resp_addr;
+ u8 i, *qptr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_QPORTCFG, -1, -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc)
+ goto qportcfg_exit;
+
+ if (!resp->max_configurable_queues) {
+ rc = -EINVAL;
+ goto qportcfg_exit;
+ }
+ bp->max_tc = resp->max_configurable_queues;
+ if (bp->max_tc > BNXT_MAX_QUEUE)
+ bp->max_tc = BNXT_MAX_QUEUE;
+
+ qptr = &resp->queue_id0;
+ for (i = 0; i < bp->max_tc; i++) {
+ bp->q_info[i].queue_id = *qptr++;
+ bp->q_info[i].queue_profile = *qptr++;
+ }
+
+qportcfg_exit:
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static int bnxt_hwrm_ver_get(struct bnxt *bp)
+{
+ int rc;
+ struct hwrm_ver_get_input req = {0};
+ struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VER_GET, -1, -1);
+ req.hwrm_intf_maj = HWRM_VERSION_MAJOR;
+ req.hwrm_intf_min = HWRM_VERSION_MINOR;
+ req.hwrm_intf_upd = HWRM_VERSION_UPDATE;
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc)
+ goto hwrm_ver_get_exit;
+
+ memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output));
+
+ if (req.hwrm_intf_maj != resp->hwrm_intf_maj ||
+ req.hwrm_intf_min != resp->hwrm_intf_min ||
+ req.hwrm_intf_upd != resp->hwrm_intf_upd) {
+ netdev_warn(bp->dev, "HWRM interface %d.%d.%d does not match driver interface %d.%d.%d.\n",
+ resp->hwrm_intf_maj, resp->hwrm_intf_min,
+ resp->hwrm_intf_upd, req.hwrm_intf_maj,
+ req.hwrm_intf_min, req.hwrm_intf_upd);
+ netdev_warn(bp->dev, "Please update driver or firmware with matching interface versions.\n");
+ }
+ snprintf(bp->fw_ver_str, BC_HWRM_STR_LEN, "bc %d.%d.%d rm %d.%d.%d",
+ resp->hwrm_fw_maj, resp->hwrm_fw_min, resp->hwrm_fw_bld,
+ resp->hwrm_intf_maj, resp->hwrm_intf_min, resp->hwrm_intf_upd);
+
+hwrm_ver_get_exit:
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
+{
+ if (bp->vxlan_port_cnt) {
+ bnxt_hwrm_tunnel_dst_port_free(
+ bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
+ }
+ bp->vxlan_port_cnt = 0;
+ if (bp->nge_port_cnt) {
+ bnxt_hwrm_tunnel_dst_port_free(
+ bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
+ }
+ bp->nge_port_cnt = 0;
+}
+
+static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
+{
+ int rc, i;
+ u32 tpa_flags = 0;
+
+ if (set_tpa)
+ tpa_flags = bp->flags & BNXT_FLAG_TPA;
+ for (i = 0; i < bp->nr_vnics; i++) {
+ rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n",
+ rc, i);
+ return rc;
+ }
+ }
+ return 0;
+}
+
+static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < bp->nr_vnics; i++)
+ bnxt_hwrm_vnic_set_rss(bp, i, false);
+}
+
+static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path,
+ bool irq_re_init)
+{
+ if (bp->vnic_info) {
+ bnxt_hwrm_clear_vnic_filter(bp);
+ /* clear all RSS setting before free vnic ctx */
+ bnxt_hwrm_clear_vnic_rss(bp);
+ bnxt_hwrm_vnic_ctx_free(bp);
+ /* before free the vnic, undo the vnic tpa settings */
+ if (bp->flags & BNXT_FLAG_TPA)
+ bnxt_set_tpa(bp, false);
+ bnxt_hwrm_vnic_free(bp);
+ }
+ bnxt_hwrm_ring_free(bp, close_path);
+ bnxt_hwrm_ring_grp_free(bp);
+ if (irq_re_init) {
+ bnxt_hwrm_stat_ctx_free(bp);
+ bnxt_hwrm_free_tunnel_ports(bp);
+ }
+}
+
+static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
+{
+ int rc;
+
+ /* allocate context for vnic */
+ rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
+ vnic_id, rc);
+ goto vnic_setup_err;
+ }
+ bp->rsscos_nr_ctxs++;
+
+ /* configure default vnic, ring grp */
+ rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
+ vnic_id, rc);
+ goto vnic_setup_err;
+ }
+
+ /* Enable RSS hashing on vnic */
+ rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n",
+ vnic_id, rc);
+ goto vnic_setup_err;
+ }
+
+ if (bp->flags & BNXT_FLAG_AGG_RINGS) {
+ rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
+ vnic_id, rc);
+ }
+ }
+
+vnic_setup_err:
+ return rc;
+}
+
+static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
+{
+#ifdef CONFIG_RFS_ACCEL
+ int i, rc = 0;
+
+ for (i = 0; i < bp->rx_nr_rings; i++) {
+ u16 vnic_id = i + 1;
+ u16 ring_id = i;
+
+ if (vnic_id >= bp->nr_vnics)
+ break;
+
+ bp->vnic_info[vnic_id].flags |= BNXT_VNIC_RFS_FLAG;
+ rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, ring_id + 1);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
+ vnic_id, rc);
+ break;
+ }
+ rc = bnxt_setup_vnic(bp, vnic_id);
+ if (rc)
+ break;
+ }
+ return rc;
+#else
+ return 0;
+#endif
+}
+
+static int bnxt_cfg_rx_mode(struct bnxt *);
+
+static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
+{
+ int rc = 0;
+
+ if (irq_re_init) {
+ rc = bnxt_hwrm_stat_ctx_alloc(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n",
+ rc);
+ goto err_out;
+ }
+ }
+
+ rc = bnxt_hwrm_ring_alloc(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc);
+ goto err_out;
+ }
+
+ rc = bnxt_hwrm_ring_grp_alloc(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc);
+ goto err_out;
+ }
+
+ /* default vnic 0 */
+ rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, bp->rx_nr_rings);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc);
+ goto err_out;
+ }
+
+ rc = bnxt_setup_vnic(bp, 0);
+ if (rc)
+ goto err_out;
+
+ if (bp->flags & BNXT_FLAG_RFS) {
+ rc = bnxt_alloc_rfs_vnics(bp);
+ if (rc)
+ goto err_out;
+ }
+
+ if (bp->flags & BNXT_FLAG_TPA) {
+ rc = bnxt_set_tpa(bp, true);
+ if (rc)
+ goto err_out;
+ }
+
+ if (BNXT_VF(bp))
+ bnxt_update_vf_mac(bp);
+
+ /* Filter for default vnic 0 */
+ rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr);
+ if (rc) {
+ netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
+ goto err_out;
+ }
+ bp->vnic_info[0].uc_filter_count = 1;
+
+ bp->vnic_info[0].rx_mask = CFA_L2_SET_RX_MASK_REQ_MASK_UNICAST |
+ CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
+
+ if ((bp->dev->flags & IFF_PROMISC) && BNXT_PF(bp))
+ bp->vnic_info[0].rx_mask |=
+ CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
+
+ rc = bnxt_cfg_rx_mode(bp);
+ if (rc)
+ goto err_out;
+
+ rc = bnxt_hwrm_set_coal(bp);
+ if (rc)
+ netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n",
+ rc);
+
+ return 0;
+
+err_out:
+ bnxt_hwrm_resource_free(bp, 0, true);
+
+ return rc;
+}
+
+static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init)
+{
+ bnxt_hwrm_resource_free(bp, 1, irq_re_init);
+ return 0;
+}
+
+static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init)
+{
+ bnxt_init_rx_rings(bp);
+ bnxt_init_tx_rings(bp);
+ bnxt_init_ring_grps(bp, irq_re_init);
+ bnxt_init_vnics(bp);
+
+ return bnxt_init_chip(bp, irq_re_init);
+}
+
+static void bnxt_disable_int(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
+ }
+}
+
+static void bnxt_enable_int(struct bnxt *bp)
+{
+ int i;
+
+ atomic_set(&bp->intr_sem, 0);
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+
+ BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons);
+ }
+}
+
+static int bnxt_set_real_num_queues(struct bnxt *bp)
+{
+ int rc;
+ struct net_device *dev = bp->dev;
+
+ rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings);
+ if (rc)
+ return rc;
+
+ rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings);
+ if (rc)
+ return rc;
+
+#ifdef CONFIG_RFS_ACCEL
+ if (bp->rx_nr_rings)
+ dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings);
+ if (!dev->rx_cpu_rmap)
+ rc = -ENOMEM;
+#endif
+
+ return rc;
+}
+
+static int bnxt_setup_msix(struct bnxt *bp)
+{
+ struct msix_entry *msix_ent;
+ struct net_device *dev = bp->dev;
+ int i, total_vecs, rc = 0;
+ const int len = sizeof(bp->irq_tbl[0].name);
+
+ bp->flags &= ~BNXT_FLAG_USING_MSIX;
+ total_vecs = bp->cp_nr_rings;
+
+ msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL);
+ if (!msix_ent)
+ return -ENOMEM;
+
+ for (i = 0; i < total_vecs; i++) {
+ msix_ent[i].entry = i;
+ msix_ent[i].vector = 0;
+ }
+
+ total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, 1, total_vecs);
+ if (total_vecs < 0) {
+ rc = -ENODEV;
+ goto msix_setup_exit;
+ }
+
+ bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL);
+ if (bp->irq_tbl) {
+ int tcs;
+
+ /* Trim rings based upon num of vectors allocated */
+ bp->rx_nr_rings = min_t(int, total_vecs, bp->rx_nr_rings);
+ bp->tx_nr_rings = min_t(int, total_vecs, bp->tx_nr_rings);
+ bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
+ tcs = netdev_get_num_tc(dev);
+ if (tcs > 1) {
+ bp->tx_nr_rings_per_tc = bp->tx_nr_rings / tcs;
+ if (bp->tx_nr_rings_per_tc == 0) {
+ netdev_reset_tc(dev);
+ bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
+ } else {
+ int i, off, count;
+
+ bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
+ for (i = 0; i < tcs; i++) {
+ count = bp->tx_nr_rings_per_tc;
+ off = i * count;
+ netdev_set_tc_queue(dev, i, count, off);
+ }
+ }
+ }
+ bp->cp_nr_rings = max_t(int, bp->rx_nr_rings, bp->tx_nr_rings);
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ bp->irq_tbl[i].vector = msix_ent[i].vector;
+ snprintf(bp->irq_tbl[i].name, len,
+ "%s-%s-%d", dev->name, "TxRx", i);
+ bp->irq_tbl[i].handler = bnxt_msix;
+ }
+ rc = bnxt_set_real_num_queues(bp);
+ if (rc)
+ goto msix_setup_exit;
+ } else {
+ rc = -ENOMEM;
+ goto msix_setup_exit;
+ }
+ bp->flags |= BNXT_FLAG_USING_MSIX;
+ kfree(msix_ent);
+ return 0;
+
+msix_setup_exit:
+ netdev_err(bp->dev, "bnxt_setup_msix err: %x\n", rc);
+ pci_disable_msix(bp->pdev);
+ kfree(msix_ent);
+ return rc;
+}
+
+static int bnxt_setup_inta(struct bnxt *bp)
+{
+ int rc;
+ const int len = sizeof(bp->irq_tbl[0].name);
+
+ if (netdev_get_num_tc(bp->dev))
+ netdev_reset_tc(bp->dev);
+
+ bp->irq_tbl = kcalloc(1, sizeof(struct bnxt_irq), GFP_KERNEL);
+ if (!bp->irq_tbl) {
+ rc = -ENOMEM;
+ return rc;
+ }
+ bp->rx_nr_rings = 1;
+ bp->tx_nr_rings = 1;
+ bp->cp_nr_rings = 1;
+ bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
+ bp->irq_tbl[0].vector = bp->pdev->irq;
+ snprintf(bp->irq_tbl[0].name, len,
+ "%s-%s-%d", bp->dev->name, "TxRx", 0);
+ bp->irq_tbl[0].handler = bnxt_inta;
+ rc = bnxt_set_real_num_queues(bp);
+ return rc;
+}
+
+static int bnxt_setup_int_mode(struct bnxt *bp)
+{
+ int rc = 0;
+
+ if (bp->flags & BNXT_FLAG_MSIX_CAP)
+ rc = bnxt_setup_msix(bp);
+
+ if (!(bp->flags & BNXT_FLAG_USING_MSIX)) {
+ /* fallback to INTA */
+ rc = bnxt_setup_inta(bp);
+ }
+ return rc;
+}
+
+static void bnxt_free_irq(struct bnxt *bp)
+{
+ struct bnxt_irq *irq;
+ int i;
+
+#ifdef CONFIG_RFS_ACCEL
+ free_irq_cpu_rmap(bp->dev->rx_cpu_rmap);
+ bp->dev->rx_cpu_rmap = NULL;
+#endif
+ if (!bp->irq_tbl)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ irq = &bp->irq_tbl[i];
+ if (irq->requested)
+ free_irq(irq->vector, bp->bnapi[i]);
+ irq->requested = 0;
+ }
+ if (bp->flags & BNXT_FLAG_USING_MSIX)
+ pci_disable_msix(bp->pdev);
+ kfree(bp->irq_tbl);
+ bp->irq_tbl = NULL;
+}
+
+static int bnxt_request_irq(struct bnxt *bp)
+{
+ int i, rc = 0;
+ unsigned long flags = 0;
+#ifdef CONFIG_RFS_ACCEL
+ struct cpu_rmap *rmap = bp->dev->rx_cpu_rmap;
+#endif
+
+ if (!(bp->flags & BNXT_FLAG_USING_MSIX))
+ flags = IRQF_SHARED;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_irq *irq = &bp->irq_tbl[i];
+#ifdef CONFIG_RFS_ACCEL
+ if (rmap && (i < bp->rx_nr_rings)) {
+ rc = irq_cpu_rmap_add(rmap, irq->vector);
+ if (rc)
+ netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n",
+ i);
+ }
+#endif
+ rc = request_irq(irq->vector, irq->handler, flags, irq->name,
+ bp->bnapi[i]);
+ if (rc)
+ break;
+
+ irq->requested = 1;
+ }
+ return rc;
+}
+
+static void bnxt_del_napi(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+
+ napi_hash_del(&bnapi->napi);
+ netif_napi_del(&bnapi->napi);
+ }
+}
+
+static void bnxt_init_napi(struct bnxt *bp)
+{
+ int i;
+ struct bnxt_napi *bnapi;
+
+ if (bp->flags & BNXT_FLAG_USING_MSIX) {
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ bnapi = bp->bnapi[i];
+ netif_napi_add(bp->dev, &bnapi->napi,
+ bnxt_poll, 64);
+ napi_hash_add(&bnapi->napi);
+ }
+ } else {
+ bnapi = bp->bnapi[0];
+ netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64);
+ napi_hash_add(&bnapi->napi);
+ }
+}
+
+static void bnxt_disable_napi(struct bnxt *bp)
+{
+ int i;
+
+ if (!bp->bnapi)
+ return;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ napi_disable(&bp->bnapi[i]->napi);
+ bnxt_disable_poll(bp->bnapi[i]);
+ }
+}
+
+static void bnxt_enable_napi(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ bnxt_enable_poll(bp->bnapi[i]);
+ napi_enable(&bp->bnapi[i]->napi);
+ }
+}
+
+static void bnxt_tx_disable(struct bnxt *bp)
+{
+ int i;
+ struct bnxt_napi *bnapi;
+ struct bnxt_tx_ring_info *txr;
+ struct netdev_queue *txq;
+
+ if (bp->bnapi) {
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ bnapi = bp->bnapi[i];
+ txr = &bnapi->tx_ring;
+ txq = netdev_get_tx_queue(bp->dev, i);
+ __netif_tx_lock(txq, smp_processor_id());
+ txr->dev_state = BNXT_DEV_STATE_CLOSING;
+ __netif_tx_unlock(txq);
+ }
+ }
+ /* Stop all TX queues */
+ netif_tx_disable(bp->dev);
+ netif_carrier_off(bp->dev);
+}
+
+static void bnxt_tx_enable(struct bnxt *bp)
+{
+ int i;
+ struct bnxt_napi *bnapi;
+ struct bnxt_tx_ring_info *txr;
+ struct netdev_queue *txq;
+
+ for (i = 0; i < bp->tx_nr_rings; i++) {
+ bnapi = bp->bnapi[i];
+ txr = &bnapi->tx_ring;
+ txq = netdev_get_tx_queue(bp->dev, i);
+ txr->dev_state = 0;
+ }
+ netif_tx_wake_all_queues(bp->dev);
+ if (bp->link_info.link_up)
+ netif_carrier_on(bp->dev);
+}
+
+static void bnxt_report_link(struct bnxt *bp)
+{
+ if (bp->link_info.link_up) {
+ const char *duplex;
+ const char *flow_ctrl;
+ u16 speed;
+
+ netif_carrier_on(bp->dev);
+ if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
+ duplex = "full";
+ else
+ duplex = "half";
+ if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH)
+ flow_ctrl = "ON - receive & transmit";
+ else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX)
+ flow_ctrl = "ON - transmit";
+ else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX)
+ flow_ctrl = "ON - receive";
+ else
+ flow_ctrl = "none";
+ speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
+ netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n",
+ speed, duplex, flow_ctrl);
+ } else {
+ netif_carrier_off(bp->dev);
+ netdev_err(bp->dev, "NIC Link is Down\n");
+ }
+}
+
+static int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
+{
+ int rc = 0;
+ struct bnxt_link_info *link_info = &bp->link_info;
+ struct hwrm_port_phy_qcfg_input req = {0};
+ struct hwrm_port_phy_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
+ u8 link_up = link_info->link_up;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCFG, -1, -1);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (rc) {
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+ }
+
+ memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp));
+ link_info->phy_link_status = resp->link;
+ link_info->duplex = resp->duplex;
+ link_info->pause = resp->pause;
+ link_info->auto_mode = resp->auto_mode;
+ link_info->auto_pause_setting = resp->auto_pause;
+ link_info->force_pause_setting = resp->force_pause;
+ link_info->duplex_setting = resp->duplex_setting;
+ if (link_info->phy_link_status == BNXT_LINK_LINK)
+ link_info->link_speed = le16_to_cpu(resp->link_speed);
+ else
+ link_info->link_speed = 0;
+ link_info->force_link_speed = le16_to_cpu(resp->force_link_speed);
+ link_info->auto_link_speed = le16_to_cpu(resp->auto_link_speed);
+ link_info->support_speeds = le16_to_cpu(resp->support_speeds);
+ link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask);
+ link_info->preemphasis = le32_to_cpu(resp->preemphasis);
+ link_info->phy_ver[0] = resp->phy_maj;
+ link_info->phy_ver[1] = resp->phy_min;
+ link_info->phy_ver[2] = resp->phy_bld;
+ link_info->media_type = resp->media_type;
+ link_info->transceiver = resp->transceiver_type;
+ link_info->phy_addr = resp->phy_addr;
+
+ /* TODO: need to add more logic to report VF link */
+ if (chng_link_state) {
+ if (link_info->phy_link_status == BNXT_LINK_LINK)
+ link_info->link_up = 1;
+ else
+ link_info->link_up = 0;
+ if (link_up != link_info->link_up)
+ bnxt_report_link(bp);
+ } else {
+ /* alwasy link down if not require to update link state */
+ link_info->link_up = 0;
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return 0;
+}
+
+static void
+bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req)
+{
+ if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) {
+ if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
+ req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
+ if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
+ req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
+ req->enables |=
+ cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
+ } else {
+ if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
+ req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX;
+ if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
+ req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX;
+ req->enables |=
+ cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE);
+ }
+}
+
+static void bnxt_hwrm_set_link_common(struct bnxt *bp,
+ struct hwrm_port_phy_cfg_input *req)
+{
+ u8 autoneg = bp->link_info.autoneg;
+ u16 fw_link_speed = bp->link_info.req_link_speed;
+ u32 advertising = bp->link_info.advertising;
+
+ if (autoneg & BNXT_AUTONEG_SPEED) {
+ req->auto_mode |=
+ PORT_PHY_CFG_REQ_AUTO_MODE_MASK;
+
+ req->enables |= cpu_to_le32(
+ PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK);
+ req->auto_link_speed_mask = cpu_to_le16(advertising);
+
+ req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE);
+ req->flags |=
+ cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG);
+ } else {
+ req->force_link_speed = cpu_to_le16(fw_link_speed);
+ req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE);
+ }
+
+ /* currently don't support half duplex */
+ req->auto_duplex = PORT_PHY_CFG_REQ_AUTO_DUPLEX_FULL;
+ req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_DUPLEX);
+ /* tell chimp that the setting takes effect immediately */
+ req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY);
+}
+
+int bnxt_hwrm_set_pause(struct bnxt *bp)
+{
+ struct hwrm_port_phy_cfg_input req = {0};
+ int rc;
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
+ bnxt_hwrm_set_pause_common(bp, &req);
+
+ if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) ||
+ bp->link_info.force_link_chng)
+ bnxt_hwrm_set_link_common(bp, &req);
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) {
+ /* since changing of pause setting doesn't trigger any link
+ * change event, the driver needs to update the current pause
+ * result upon successfully return of the phy_cfg command
+ */
+ bp->link_info.pause =
+ bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl;
+ bp->link_info.auto_pause_setting = 0;
+ if (!bp->link_info.force_link_chng)
+ bnxt_report_link(bp);
+ }
+ bp->link_info.force_link_chng = false;
+ mutex_unlock(&bp->hwrm_cmd_lock);
+ return rc;
+}
+
+int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause)
+{
+ struct hwrm_port_phy_cfg_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
+ if (set_pause)
+ bnxt_hwrm_set_pause_common(bp, &req);
+
+ bnxt_hwrm_set_link_common(bp, &req);
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
+static int bnxt_update_phy_setting(struct bnxt *bp)
+{
+ int rc;
+ bool update_link = false;
+ bool update_pause = false;
+ struct bnxt_link_info *link_info = &bp->link_info;
+
+ rc = bnxt_update_link(bp, true);
+ if (rc) {
+ netdev_err(bp->dev, "failed to update link (rc: %x)\n",
+ rc);
+ return rc;
+ }
+ if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
+ link_info->auto_pause_setting != link_info->req_flow_ctrl)
+ update_pause = true;
+ if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
+ link_info->force_pause_setting != link_info->req_flow_ctrl)
+ update_pause = true;
+ if (link_info->req_duplex != link_info->duplex_setting)
+ update_link = true;
+ if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
+ if (BNXT_AUTO_MODE(link_info->auto_mode))
+ update_link = true;
+ if (link_info->req_link_speed != link_info->force_link_speed)
+ update_link = true;
+ } else {
+ if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
+ update_link = true;
+ if (link_info->advertising != link_info->auto_link_speeds)
+ update_link = true;
+ if (link_info->req_link_speed != link_info->auto_link_speed)
+ update_link = true;
+ }
+
+ if (update_link)
+ rc = bnxt_hwrm_set_link_setting(bp, update_pause);
+ else if (update_pause)
+ rc = bnxt_hwrm_set_pause(bp);
+ if (rc) {
+ netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n",
+ rc);
+ return rc;
+ }
+
+ return rc;
+}
+
+/* Common routine to pre-map certain register block to different GRC window.
+ * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows
+ * in PF and 3 windows in VF that can be customized to map in different
+ * register blocks.
+ */
+static void bnxt_preset_reg_win(struct bnxt *bp)
+{
+ if (BNXT_PF(bp)) {
+ /* CAG registers map to GRC window #4 */
+ writel(BNXT_CAG_REG_BASE,
+ bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12);
+ }
+}
+
+static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
+{
+ int rc = 0;
+
+ bnxt_preset_reg_win(bp);
+ netif_carrier_off(bp->dev);
+ if (irq_re_init) {
+ rc = bnxt_setup_int_mode(bp);
+ if (rc) {
+ netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n",
+ rc);
+ return rc;
+ }
+ }
+ if ((bp->flags & BNXT_FLAG_RFS) &&
+ !(bp->flags & BNXT_FLAG_USING_MSIX)) {
+ /* disable RFS if falling back to INTA */
+ bp->dev->hw_features &= ~NETIF_F_NTUPLE;
+ bp->flags &= ~BNXT_FLAG_RFS;
+ }
+
+ rc = bnxt_alloc_mem(bp, irq_re_init);
+ if (rc) {
+ netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
+ goto open_err_free_mem;
+ }
+
+ if (irq_re_init) {
+ bnxt_init_napi(bp);
+ rc = bnxt_request_irq(bp);
+ if (rc) {
+ netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc);
+ goto open_err;
+ }
+ }
+
+ bnxt_enable_napi(bp);
+
+ rc = bnxt_init_nic(bp, irq_re_init);
+ if (rc) {
+ netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
+ goto open_err;
+ }
+
+ if (link_re_init) {
+ rc = bnxt_update_phy_setting(bp);
+ if (rc)
+ goto open_err;
+ }
+
+ if (irq_re_init) {
+#if defined(CONFIG_VXLAN) || defined(CONFIG_VXLAN_MODULE)
+ vxlan_get_rx_port(bp->dev);
+#endif
+ if (!bnxt_hwrm_tunnel_dst_port_alloc(
+ bp, htons(0x17c1),
+ TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE))
+ bp->nge_port_cnt = 1;
+ }
+
+ set_bit(BNXT_STATE_OPEN, &bp->state);
+ bnxt_enable_int(bp);
+ /* Enable TX queues */
+ bnxt_tx_enable(bp);
+ mod_timer(&bp->timer, jiffies + bp->current_interval);
+
+ return 0;
+
+open_err:
+ bnxt_disable_napi(bp);
+ bnxt_del_napi(bp);
+
+open_err_free_mem:
+ bnxt_free_skbs(bp);
+ bnxt_free_irq(bp);
+ bnxt_free_mem(bp, true);
+ return rc;
+}
+
+/* rtnl_lock held */
+int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
+{
+ int rc = 0;
+
+ rc = __bnxt_open_nic(bp, irq_re_init, link_re_init);
+ if (rc) {
+ netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc);
+ dev_close(bp->dev);
+ }
+ return rc;
+}
+
+static int bnxt_open(struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ int rc = 0;
+
+ rc = bnxt_hwrm_func_reset(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm chip reset failure rc: %x\n",
+ rc);
+ rc = -1;
+ return rc;
+ }
+ return __bnxt_open_nic(bp, true, true);
+}
+
+static void bnxt_disable_int_sync(struct bnxt *bp)
+{
+ int i;
+
+ atomic_inc(&bp->intr_sem);
+ if (!netif_running(bp->dev))
+ return;
+
+ bnxt_disable_int(bp);
+ for (i = 0; i < bp->cp_nr_rings; i++)
+ synchronize_irq(bp->irq_tbl[i].vector);
+}
+
+int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
+{
+ int rc = 0;
+
+#ifdef CONFIG_BNXT_SRIOV
+ if (bp->sriov_cfg) {
+ rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait,
+ !bp->sriov_cfg,
+ BNXT_SRIOV_CFG_WAIT_TMO);
+ if (rc)
+ netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n");
+ }
+#endif
+ /* Change device state to avoid TX queue wake up's */
+ bnxt_tx_disable(bp);
+
+ clear_bit(BNXT_STATE_OPEN, &bp->state);
+ smp_mb__after_atomic();
+ while (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state))
+ msleep(20);
+
+ /* Flush rings before disabling interrupts */
+ bnxt_shutdown_nic(bp, irq_re_init);
+
+ /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */
+
+ bnxt_disable_napi(bp);
+ bnxt_disable_int_sync(bp);
+ del_timer_sync(&bp->timer);
+ bnxt_free_skbs(bp);
+
+ if (irq_re_init) {
+ bnxt_free_irq(bp);
+ bnxt_del_napi(bp);
+ }
+ bnxt_free_mem(bp, irq_re_init);
+ return rc;
+}
+
+static int bnxt_close(struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ bnxt_close_nic(bp, true, true);
+ return 0;
+}
+
+/* rtnl_lock held */
+static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ /* fallthru */
+ case SIOCGMIIREG: {
+ if (!netif_running(dev))
+ return -EAGAIN;
+
+ return 0;
+ }
+
+ case SIOCSMIIREG:
+ if (!netif_running(dev))
+ return -EAGAIN;
+
+ return 0;
+
+ default:
+ /* do nothing */
+ break;
+ }
+ return -EOPNOTSUPP;
+}
+
+static struct rtnl_link_stats64 *
+bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+ u32 i;
+ struct bnxt *bp = netdev_priv(dev);
+
+ memset(stats, 0, sizeof(struct rtnl_link_stats64));
+
+ if (!bp->bnapi)
+ return stats;
+
+ /* TODO check if we need to synchronize with bnxt_close path */
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_napi *bnapi = bp->bnapi[i];
+ struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
+ struct ctx_hw_stats *hw_stats = cpr->hw_stats;
+
+ stats->rx_packets += le64_to_cpu(hw_stats->rx_ucast_pkts);
+ stats->rx_packets += le64_to_cpu(hw_stats->rx_mcast_pkts);
+ stats->rx_packets += le64_to_cpu(hw_stats->rx_bcast_pkts);
+
+ stats->tx_packets += le64_to_cpu(hw_stats->tx_ucast_pkts);
+ stats->tx_packets += le64_to_cpu(hw_stats->tx_mcast_pkts);
+ stats->tx_packets += le64_to_cpu(hw_stats->tx_bcast_pkts);
+
+ stats->rx_bytes += le64_to_cpu(hw_stats->rx_ucast_bytes);
+ stats->rx_bytes += le64_to_cpu(hw_stats->rx_mcast_bytes);
+ stats->rx_bytes += le64_to_cpu(hw_stats->rx_bcast_bytes);
+
+ stats->tx_bytes += le64_to_cpu(hw_stats->tx_ucast_bytes);
+ stats->tx_bytes += le64_to_cpu(hw_stats->tx_mcast_bytes);
+ stats->tx_bytes += le64_to_cpu(hw_stats->tx_bcast_bytes);
+
+ stats->rx_missed_errors +=
+ le64_to_cpu(hw_stats->rx_discard_pkts);
+
+ stats->multicast += le64_to_cpu(hw_stats->rx_mcast_pkts);
+
+ stats->rx_dropped += le64_to_cpu(hw_stats->rx_drop_pkts);
+
+ stats->tx_dropped += le64_to_cpu(hw_stats->tx_drop_pkts);
+ }
+
+ return stats;
+}
+
+static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask)
+{
+ struct net_device *dev = bp->dev;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
+ struct netdev_hw_addr *ha;
+ u8 *haddr;
+ int mc_count = 0;
+ bool update = false;
+ int off = 0;
+
+ netdev_for_each_mc_addr(ha, dev) {
+ if (mc_count >= BNXT_MAX_MC_ADDRS) {
+ *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
+ vnic->mc_list_count = 0;
+ return false;
+ }
+ haddr = ha->addr;
+ if (!ether_addr_equal(haddr, vnic->mc_list + off)) {
+ memcpy(vnic->mc_list + off, haddr, ETH_ALEN);
+ update = true;
+ }
+ off += ETH_ALEN;
+ mc_count++;
+ }
+ if (mc_count)
+ *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
+
+ if (mc_count != vnic->mc_list_count) {
+ vnic->mc_list_count = mc_count;
+ update = true;
+ }
+ return update;
+}
+
+static bool bnxt_uc_list_updated(struct bnxt *bp)
+{
+ struct net_device *dev = bp->dev;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
+ struct netdev_hw_addr *ha;
+ int off = 0;
+
+ if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1))
+ return true;
+
+ netdev_for_each_uc_addr(ha, dev) {
+ if (!ether_addr_equal(ha->addr, vnic->uc_list + off))
+ return true;
+
+ off += ETH_ALEN;
+ }
+ return false;
+}
+
+static void bnxt_set_rx_mode(struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
+ u32 mask = vnic->rx_mask;
+ bool mc_update = false;
+ bool uc_update;
+
+ if (!netif_running(dev))
+ return;
+
+ mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS |
+ CFA_L2_SET_RX_MASK_REQ_MASK_MCAST |
+ CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST);
+
+ /* Only allow PF to be in promiscuous mode */
+ if ((dev->flags & IFF_PROMISC) && BNXT_PF(bp))
+ mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
+
+ uc_update = bnxt_uc_list_updated(bp);
+
+ if (dev->flags & IFF_ALLMULTI) {
+ mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
+ vnic->mc_list_count = 0;
+ } else {
+ mc_update = bnxt_mc_list_updated(bp, &mask);
+ }
+
+ if (mask != vnic->rx_mask || uc_update || mc_update) {
+ vnic->rx_mask = mask;
+
+ set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+ }
+}
+
+static int bnxt_cfg_rx_mode(struct bnxt *bp)
+{
+ struct net_device *dev = bp->dev;
+ struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
+ struct netdev_hw_addr *ha;
+ int i, off = 0, rc;
+ bool uc_update;
+
+ netif_addr_lock_bh(dev);
+ uc_update = bnxt_uc_list_updated(bp);
+ netif_addr_unlock_bh(dev);
+
+ if (!uc_update)
+ goto skip_uc;
+
+ mutex_lock(&bp->hwrm_cmd_lock);
+ for (i = 1; i < vnic->uc_filter_count; i++) {
+ struct hwrm_cfa_l2_filter_free_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_FREE, -1,
+ -1);
+
+ req.l2_filter_id = vnic->fw_l2_filter_id[i];
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req),
+ HWRM_CMD_TIMEOUT);
+ }
+ mutex_unlock(&bp->hwrm_cmd_lock);
+
+ vnic->uc_filter_count = 1;
+
+ netif_addr_lock_bh(dev);
+ if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) {
+ vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
+ } else {
+ netdev_for_each_uc_addr(ha, dev) {
+ memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN);
+ off += ETH_ALEN;
+ vnic->uc_filter_count++;
+ }
+ }
+ netif_addr_unlock_bh(dev);
+
+ for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) {
+ rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off);
+ if (rc) {
+ netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n",
+ rc);
+ vnic->uc_filter_count = i;
+ return rc;
+ }
+ }
+
+skip_uc:
+ rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
+ if (rc)
+ netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %x\n",
+ rc);
+
+ return rc;
+}
+
+static netdev_features_t bnxt_fix_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ return features;
+}
+
+static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ u32 flags = bp->flags;
+ u32 changes;
+ int rc = 0;
+ bool re_init = false;
+ bool update_tpa = false;
+
+ flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS;
+ if ((features & NETIF_F_GRO) && (bp->pdev->revision > 0))
+ flags |= BNXT_FLAG_GRO;
+ if (features & NETIF_F_LRO)
+ flags |= BNXT_FLAG_LRO;
+
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ flags |= BNXT_FLAG_STRIP_VLAN;
+
+ if (features & NETIF_F_NTUPLE)
+ flags |= BNXT_FLAG_RFS;
+
+ changes = flags ^ bp->flags;
+ if (changes & BNXT_FLAG_TPA) {
+ update_tpa = true;
+ if ((bp->flags & BNXT_FLAG_TPA) == 0 ||
+ (flags & BNXT_FLAG_TPA) == 0)
+ re_init = true;
+ }
+
+ if (changes & ~BNXT_FLAG_TPA)
+ re_init = true;
+
+ if (flags != bp->flags) {
+ u32 old_flags = bp->flags;
+
+ bp->flags = flags;
+
+ if (!netif_running(dev)) {
+ if (update_tpa)
+ bnxt_set_ring_params(bp);
+ return rc;
+ }
+
+ if (re_init) {
+ bnxt_close_nic(bp, false, false);
+ if (update_tpa)
+ bnxt_set_ring_params(bp);
+
+ return bnxt_open_nic(bp, false, false);
+ }
+ if (update_tpa) {
+ rc = bnxt_set_tpa(bp,
+ (flags & BNXT_FLAG_TPA) ?
+ true : false);
+ if (rc)
+ bp->flags = old_flags;
+ }
+ }
+ return rc;
+}
+
+static void bnxt_dbg_dump_states(struct bnxt *bp)
+{
+ int i;
+ struct bnxt_napi *bnapi;
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_rx_ring_info *rxr;
+ struct bnxt_cp_ring_info *cpr;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ bnapi = bp->bnapi[i];
+ txr = &bnapi->tx_ring;
+ rxr = &bnapi->rx_ring;
+ cpr = &bnapi->cp_ring;
+ if (netif_msg_drv(bp)) {
+ netdev_info(bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n",
+ i, txr->tx_ring_struct.fw_ring_id,
+ txr->tx_prod, txr->tx_cons);
+ netdev_info(bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n",
+ i, rxr->rx_ring_struct.fw_ring_id,
+ rxr->rx_prod,
+ rxr->rx_agg_ring_struct.fw_ring_id,
+ rxr->rx_agg_prod, rxr->rx_sw_agg_prod);
+ netdev_info(bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n",
+ i, cpr->cp_ring_struct.fw_ring_id,
+ cpr->cp_raw_cons);
+ }
+ }
+}
+
+static void bnxt_reset_task(struct bnxt *bp)
+{
+ bnxt_dbg_dump_states(bp);
+ if (netif_running(bp->dev)) {
+ bnxt_close_nic(bp, false, false);
+ bnxt_open_nic(bp, false, false);
+ }
+}
+
+static void bnxt_tx_timeout(struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ netdev_err(bp->dev, "TX timeout detected, starting reset task!\n");
+ set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void bnxt_poll_controller(struct net_device *dev)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ int i;
+
+ for (i = 0; i < bp->cp_nr_rings; i++) {
+ struct bnxt_irq *irq = &bp->irq_tbl[i];
+
+ disable_irq(irq->vector);
+ irq->handler(irq->vector, bp->bnapi[i]);
+ enable_irq(irq->vector);
+ }
+}
+#endif
+
+static void bnxt_timer(unsigned long data)
+{
+ struct bnxt *bp = (struct bnxt *)data;
+ struct net_device *dev = bp->dev;
+
+ if (!netif_running(dev))
+ return;
+
+ if (atomic_read(&bp->intr_sem) != 0)
+ goto bnxt_restart_timer;
+
+bnxt_restart_timer:
+ mod_timer(&bp->timer, jiffies + bp->current_interval);
+}
+
+static void bnxt_cfg_ntp_filters(struct bnxt *);
+
+static void bnxt_sp_task(struct work_struct *work)
+{
+ struct bnxt *bp = container_of(work, struct bnxt, sp_task);
+ int rc;
+
+ set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
+ smp_mb__after_atomic();
+ if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
+ clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
+ return;
+ }
+
+ if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event))
+ bnxt_cfg_rx_mode(bp);
+
+ if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event))
+ bnxt_cfg_ntp_filters(bp);
+ if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
+ rc = bnxt_update_link(bp, true);
+ if (rc)
+ netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
+ rc);
+ }
+ if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
+ bnxt_hwrm_exec_fwd_req(bp);
+ if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) {
+ bnxt_hwrm_tunnel_dst_port_alloc(
+ bp, bp->vxlan_port,
+ TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
+ }
+ if (test_and_clear_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event)) {
+ bnxt_hwrm_tunnel_dst_port_free(
+ bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
+ }
+ if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) {
+ /* bnxt_reset_task() calls bnxt_close_nic() which waits
+ * for BNXT_STATE_IN_SP_TASK to clear.
+ */
+ clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
+ rtnl_lock();
+ bnxt_reset_task(bp);
+ set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
+ rtnl_unlock();
+ }
+
+ smp_mb__before_atomic();
+ clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
+}
+
+static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
+{
+ int rc;
+ struct bnxt *bp = netdev_priv(dev);
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ /* enable device (incl. PCI PM wakeup), and bus-mastering */
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
+ goto init_err;
+ }
+
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev,
+ "Cannot find PCI device base address, aborting\n");
+ rc = -ENODEV;
+ goto init_err_disable;
+ }
+
+ rc = pci_request_regions(pdev, DRV_MODULE_NAME);
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
+ goto init_err_disable;
+ }
+
+ if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 &&
+ dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
+ dev_err(&pdev->dev, "System does not support DMA, aborting\n");
+ goto init_err_disable;
+ }
+
+ pci_set_master(pdev);
+
+ bp->dev = dev;
+ bp->pdev = pdev;
+
+ bp->bar0 = pci_ioremap_bar(pdev, 0);
+ if (!bp->bar0) {
+ dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
+ rc = -ENOMEM;
+ goto init_err_release;
+ }
+
+ bp->bar1 = pci_ioremap_bar(pdev, 2);
+ if (!bp->bar1) {
+ dev_err(&pdev->dev, "Cannot map doorbell registers, aborting\n");
+ rc = -ENOMEM;
+ goto init_err_release;
+ }
+
+ bp->bar2 = pci_ioremap_bar(pdev, 4);
+ if (!bp->bar2) {
+ dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n");
+ rc = -ENOMEM;
+ goto init_err_release;
+ }
+
+ INIT_WORK(&bp->sp_task, bnxt_sp_task);
+
+ spin_lock_init(&bp->ntp_fltr_lock);
+
+ bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE;
+ bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE;
+
+ bp->coal_ticks = BNXT_USEC_TO_COAL_TIMER(4);
+ bp->coal_bufs = 20;
+ bp->coal_ticks_irq = BNXT_USEC_TO_COAL_TIMER(1);
+ bp->coal_bufs_irq = 2;
+
+ init_timer(&bp->timer);
+ bp->timer.data = (unsigned long)bp;
+ bp->timer.function = bnxt_timer;
+ bp->current_interval = BNXT_TIMER_INTERVAL;
+
+ clear_bit(BNXT_STATE_OPEN, &bp->state);
+
+ return 0;
+
+init_err_release:
+ if (bp->bar2) {
+ pci_iounmap(pdev, bp->bar2);
+ bp->bar2 = NULL;
+ }
+
+ if (bp->bar1) {
+ pci_iounmap(pdev, bp->bar1);
+ bp->bar1 = NULL;
+ }
+
+ if (bp->bar0) {
+ pci_iounmap(pdev, bp->bar0);
+ bp->bar0 = NULL;
+ }
+
+ pci_release_regions(pdev);
+
+init_err_disable:
+ pci_disable_device(pdev);
+
+init_err:
+ return rc;
+}
+
+/* rtnl_lock held */
+static int bnxt_change_mac_addr(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+ struct bnxt *bp = netdev_priv(dev);
+ int rc = 0;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+#ifdef CONFIG_BNXT_SRIOV
+ if (BNXT_VF(bp) && is_valid_ether_addr(bp->vf.mac_addr))
+ return -EADDRNOTAVAIL;
+#endif
+
+ if (ether_addr_equal(addr->sa_data, dev->dev_addr))
+ return 0;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ if (netif_running(dev)) {
+ bnxt_close_nic(bp, false, false);
+ rc = bnxt_open_nic(bp, false, false);
+ }
+
+ return rc;
+}
+
+/* rtnl_lock held */
+static int bnxt_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ if (new_mtu < 60 || new_mtu > 9000)
+ return -EINVAL;
+
+ if (netif_running(dev))
+ bnxt_close_nic(bp, false, false);
+
+ dev->mtu = new_mtu;
+ bnxt_set_ring_params(bp);
+
+ if (netif_running(dev))
+ return bnxt_open_nic(bp, false, false);
+
+ return 0;
+}
+
+static int bnxt_setup_tc(struct net_device *dev, u8 tc)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ if (tc > bp->max_tc) {
+ netdev_err(dev, "too many traffic classes requested: %d Max supported is %d\n",
+ tc, bp->max_tc);
+ return -EINVAL;
+ }
+
+ if (netdev_get_num_tc(dev) == tc)
+ return 0;
+
+ if (tc) {
+ int max_rx_rings, max_tx_rings;
+
+ bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings);
+ if (bp->tx_nr_rings_per_tc * tc > max_tx_rings)
+ return -ENOMEM;
+ }
+
+ /* Needs to close the device and do hw resource re-allocations */
+ if (netif_running(bp->dev))
+ bnxt_close_nic(bp, true, false);
+
+ if (tc) {
+ bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc;
+ netdev_set_num_tc(dev, tc);
+ } else {
+ bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
+ netdev_reset_tc(dev);
+ }
+ bp->cp_nr_rings = max_t(int, bp->tx_nr_rings, bp->rx_nr_rings);
+ bp->num_stat_ctxs = bp->cp_nr_rings;
+
+ if (netif_running(bp->dev))
+ return bnxt_open_nic(bp, true, false);
+
+ return 0;
+}
+
+#ifdef CONFIG_RFS_ACCEL
+static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
+ struct bnxt_ntuple_filter *f2)
+{
+ struct flow_keys *keys1 = &f1->fkeys;
+ struct flow_keys *keys2 = &f2->fkeys;
+
+ if (keys1->addrs.v4addrs.src == keys2->addrs.v4addrs.src &&
+ keys1->addrs.v4addrs.dst == keys2->addrs.v4addrs.dst &&
+ keys1->ports.ports == keys2->ports.ports &&
+ keys1->basic.ip_proto == keys2->basic.ip_proto &&
+ keys1->basic.n_proto == keys2->basic.n_proto &&
+ ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr))
+ return true;
+
+ return false;
+}
+
+static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
+ u16 rxq_index, u32 flow_id)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ struct bnxt_ntuple_filter *fltr, *new_fltr;
+ struct flow_keys *fkeys;
+ struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb);
+ int rc = 0, idx, bit_id;
+ struct hlist_head *head;
+
+ if (skb->encapsulation)
+ return -EPROTONOSUPPORT;
+
+ new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC);
+ if (!new_fltr)
+ return -ENOMEM;
+
+ fkeys = &new_fltr->fkeys;
+ if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) {
+ rc = -EPROTONOSUPPORT;
+ goto err_free;
+ }
+
+ if ((fkeys->basic.n_proto != htons(ETH_P_IP)) ||
+ ((fkeys->basic.ip_proto != IPPROTO_TCP) &&
+ (fkeys->basic.ip_proto != IPPROTO_UDP))) {
+ rc = -EPROTONOSUPPORT;
+ goto err_free;
+ }
+
+ memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN);
+
+ idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK;
+ head = &bp->ntp_fltr_hash_tbl[idx];
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(fltr, head, hash) {
+ if (bnxt_fltr_match(fltr, new_fltr)) {
+ rcu_read_unlock();
+ rc = 0;
+ goto err_free;
+ }
+ }
+ rcu_read_unlock();
+
+ spin_lock_bh(&bp->ntp_fltr_lock);
+ bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap,
+ BNXT_NTP_FLTR_MAX_FLTR, 0);
+ if (bit_id < 0) {
+ spin_unlock_bh(&bp->ntp_fltr_lock);
+ rc = -ENOMEM;
+ goto err_free;
+ }
+
+ new_fltr->sw_id = (u16)bit_id;
+ new_fltr->flow_id = flow_id;
+ new_fltr->rxq = rxq_index;
+ hlist_add_head_rcu(&new_fltr->hash, head);
+ bp->ntp_fltr_count++;
+ spin_unlock_bh(&bp->ntp_fltr_lock);
+
+ set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+
+ return new_fltr->sw_id;
+
+err_free:
+ kfree(new_fltr);
+ return rc;
+}
+
+static void bnxt_cfg_ntp_filters(struct bnxt *bp)
+{
+ int i;
+
+ for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
+ struct hlist_head *head;
+ struct hlist_node *tmp;
+ struct bnxt_ntuple_filter *fltr;
+ int rc;
+
+ head = &bp->ntp_fltr_hash_tbl[i];
+ hlist_for_each_entry_safe(fltr, tmp, head, hash) {
+ bool del = false;
+
+ if (test_bit(BNXT_FLTR_VALID, &fltr->state)) {
+ if (rps_may_expire_flow(bp->dev, fltr->rxq,
+ fltr->flow_id,
+ fltr->sw_id)) {
+ bnxt_hwrm_cfa_ntuple_filter_free(bp,
+ fltr);
+ del = true;
+ }
+ } else {
+ rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp,
+ fltr);
+ if (rc)
+ del = true;
+ else
+ set_bit(BNXT_FLTR_VALID, &fltr->state);
+ }
+
+ if (del) {
+ spin_lock_bh(&bp->ntp_fltr_lock);
+ hlist_del_rcu(&fltr->hash);
+ bp->ntp_fltr_count--;
+ spin_unlock_bh(&bp->ntp_fltr_lock);
+ synchronize_rcu();
+ clear_bit(fltr->sw_id, bp->ntp_fltr_bmap);
+ kfree(fltr);
+ }
+ }
+ }
+}
+
+#else
+
+static void bnxt_cfg_ntp_filters(struct bnxt *bp)
+{
+}
+
+#endif /* CONFIG_RFS_ACCEL */
+
+static void bnxt_add_vxlan_port(struct net_device *dev, sa_family_t sa_family,
+ __be16 port)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ return;
+
+ if (sa_family != AF_INET6 && sa_family != AF_INET)
+ return;
+
+ if (bp->vxlan_port_cnt && bp->vxlan_port != port)
+ return;
+
+ bp->vxlan_port_cnt++;
+ if (bp->vxlan_port_cnt == 1) {
+ bp->vxlan_port = port;
+ set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+ }
+}
+
+static void bnxt_del_vxlan_port(struct net_device *dev, sa_family_t sa_family,
+ __be16 port)
+{
+ struct bnxt *bp = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ return;
+
+ if (sa_family != AF_INET6 && sa_family != AF_INET)
+ return;
+
+ if (bp->vxlan_port_cnt && bp->vxlan_port == port) {
+ bp->vxlan_port_cnt--;
+
+ if (bp->vxlan_port_cnt == 0) {
+ set_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event);
+ schedule_work(&bp->sp_task);
+ }
+ }
+}
+
+static const struct net_device_ops bnxt_netdev_ops = {
+ .ndo_open = bnxt_open,
+ .ndo_start_xmit = bnxt_start_xmit,
+ .ndo_stop = bnxt_close,
+ .ndo_get_stats64 = bnxt_get_stats64,
+ .ndo_set_rx_mode = bnxt_set_rx_mode,
+ .ndo_do_ioctl = bnxt_ioctl,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = bnxt_change_mac_addr,
+ .ndo_change_mtu = bnxt_change_mtu,
+ .ndo_fix_features = bnxt_fix_features,
+ .ndo_set_features = bnxt_set_features,
+ .ndo_tx_timeout = bnxt_tx_timeout,
+#ifdef CONFIG_BNXT_SRIOV
+ .ndo_get_vf_config = bnxt_get_vf_config,
+ .ndo_set_vf_mac = bnxt_set_vf_mac,
+ .ndo_set_vf_vlan = bnxt_set_vf_vlan,
+ .ndo_set_vf_rate = bnxt_set_vf_bw,
+ .ndo_set_vf_link_state = bnxt_set_vf_link_state,
+ .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk,
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = bnxt_poll_controller,
+#endif
+ .ndo_setup_tc = bnxt_setup_tc,
+#ifdef CONFIG_RFS_ACCEL
+ .ndo_rx_flow_steer = bnxt_rx_flow_steer,
+#endif
+ .ndo_add_vxlan_port = bnxt_add_vxlan_port,
+ .ndo_del_vxlan_port = bnxt_del_vxlan_port,
+#ifdef CONFIG_NET_RX_BUSY_POLL
+ .ndo_busy_poll = bnxt_busy_poll,
+#endif
+};
+
+static void bnxt_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct bnxt *bp = netdev_priv(dev);
+
+ if (BNXT_PF(bp))
+ bnxt_sriov_disable(bp);
+
+ unregister_netdev(dev);
+ cancel_work_sync(&bp->sp_task);
+ bp->sp_event = 0;
+
+ bnxt_free_hwrm_resources(bp);
+ pci_iounmap(pdev, bp->bar2);
+ pci_iounmap(pdev, bp->bar1);
+ pci_iounmap(pdev, bp->bar0);
+ free_netdev(dev);
+
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+static int bnxt_probe_phy(struct bnxt *bp)
+{
+ int rc = 0;
+ struct bnxt_link_info *link_info = &bp->link_info;
+ char phy_ver[PHY_VER_STR_LEN];
+
+ rc = bnxt_update_link(bp, false);
+ if (rc) {
+ netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n",
+ rc);
+ return rc;
+ }
+
+ /*initialize the ethool setting copy with NVM settings */
+ if (BNXT_AUTO_MODE(link_info->auto_mode))
+ link_info->autoneg |= BNXT_AUTONEG_SPEED;
+
+ if (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) {
+ if (link_info->auto_pause_setting == BNXT_LINK_PAUSE_BOTH)
+ link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
+ link_info->req_flow_ctrl = link_info->auto_pause_setting;
+ } else if (link_info->force_pause_setting & BNXT_LINK_PAUSE_BOTH) {
+ link_info->req_flow_ctrl = link_info->force_pause_setting;
+ }
+ link_info->req_duplex = link_info->duplex_setting;
+ if (link_info->autoneg & BNXT_AUTONEG_SPEED)
+ link_info->req_link_speed = link_info->auto_link_speed;
+ else
+ link_info->req_link_speed = link_info->force_link_speed;
+ link_info->advertising = link_info->auto_link_speeds;
+ snprintf(phy_ver, PHY_VER_STR_LEN, " ph %d.%d.%d",
+ link_info->phy_ver[0],
+ link_info->phy_ver[1],
+ link_info->phy_ver[2]);
+ strcat(bp->fw_ver_str, phy_ver);
+ return rc;
+}
+
+static int bnxt_get_max_irq(struct pci_dev *pdev)
+{
+ u16 ctrl;
+
+ if (!pdev->msix_cap)
+ return 1;
+
+ pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
+ return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
+}
+
+void bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx)
+{
+ int max_rings = 0;
+
+ if (BNXT_PF(bp)) {
+ *max_tx = bp->pf.max_pf_tx_rings;
+ *max_rx = bp->pf.max_pf_rx_rings;
+ max_rings = min_t(int, bp->pf.max_irqs, bp->pf.max_cp_rings);
+ max_rings = min_t(int, max_rings, bp->pf.max_stat_ctxs);
+ } else {
+#ifdef CONFIG_BNXT_SRIOV
+ *max_tx = bp->vf.max_tx_rings;
+ *max_rx = bp->vf.max_rx_rings;
+ max_rings = min_t(int, bp->vf.max_irqs, bp->vf.max_cp_rings);
+ max_rings = min_t(int, max_rings, bp->vf.max_stat_ctxs);
+#endif
+ }
+ if (bp->flags & BNXT_FLAG_AGG_RINGS)
+ *max_rx >>= 1;
+
+ *max_rx = min_t(int, *max_rx, max_rings);
+ *max_tx = min_t(int, *max_tx, max_rings);
+}
+
+static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int version_printed;
+ struct net_device *dev;
+ struct bnxt *bp;
+ int rc, max_rx_rings, max_tx_rings, max_irqs, dflt_rings;
+
+ if (version_printed++ == 0)
+ pr_info("%s", version);
+
+ max_irqs = bnxt_get_max_irq(pdev);
+ dev = alloc_etherdev_mq(sizeof(*bp), max_irqs);
+ if (!dev)
+ return -ENOMEM;
+
+ bp = netdev_priv(dev);
+
+ if (bnxt_vf_pciid(ent->driver_data))
+ bp->flags |= BNXT_FLAG_VF;
+
+ if (pdev->msix_cap) {
+ bp->flags |= BNXT_FLAG_MSIX_CAP;
+ if (BNXT_PF(bp))
+ bp->flags |= BNXT_FLAG_RFS;
+ }
+
+ rc = bnxt_init_board(pdev, dev);
+ if (rc < 0)
+ goto init_err_free;
+
+ dev->netdev_ops = &bnxt_netdev_ops;
+ dev->watchdog_timeo = BNXT_TX_TIMEOUT;
+ dev->ethtool_ops = &bnxt_ethtool_ops;
+
+ pci_set_drvdata(pdev, dev);
+
+ dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
+ NETIF_F_TSO | NETIF_F_TSO6 |
+ NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
+ NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT |
+ NETIF_F_RXHASH |
+ NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO;
+
+ if (bp->flags & BNXT_FLAG_RFS)
+ dev->hw_features |= NETIF_F_NTUPLE;
+
+ dev->hw_enc_features =
+ NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
+ NETIF_F_TSO | NETIF_F_TSO6 |
+ NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
+ NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT;
+ dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
+ dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX;
+ dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
+ dev->priv_flags |= IFF_UNICAST_FLT;
+
+#ifdef CONFIG_BNXT_SRIOV
+ init_waitqueue_head(&bp->sriov_cfg_wait);
+#endif
+ rc = bnxt_alloc_hwrm_resources(bp);
+ if (rc)
+ goto init_err;
+
+ mutex_init(&bp->hwrm_cmd_lock);
+ bnxt_hwrm_ver_get(bp);
+
+ rc = bnxt_hwrm_func_drv_rgtr(bp);
+ if (rc)
+ goto init_err;
+
+ /* Get the MAX capabilities for this function */
+ rc = bnxt_hwrm_func_qcaps(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
+ rc);
+ rc = -1;
+ goto init_err;
+ }
+
+ rc = bnxt_hwrm_queue_qportcfg(bp);
+ if (rc) {
+ netdev_err(bp->dev, "hwrm query qportcfg failure rc: %x\n",
+ rc);
+ rc = -1;
+ goto init_err;
+ }
+
+ bnxt_set_tpa_flags(bp);
+ bnxt_set_ring_params(bp);
+ dflt_rings = netif_get_num_default_rss_queues();
+ if (BNXT_PF(bp))
+ bp->pf.max_irqs = max_irqs;
+#if defined(CONFIG_BNXT_SRIOV)
+ else
+ bp->vf.max_irqs = max_irqs;
+#endif
+ bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings);
+ bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings);
+ bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings);
+ bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
+ bp->cp_nr_rings = max_t(int, bp->rx_nr_rings, bp->tx_nr_rings);
+ bp->num_stat_ctxs = bp->cp_nr_rings;
+
+ if (dev->hw_features & NETIF_F_HW_VLAN_CTAG_RX)
+ bp->flags |= BNXT_FLAG_STRIP_VLAN;
+
+ rc = bnxt_probe_phy(bp);
+ if (rc)
+ goto init_err;
+
+ rc = register_netdev(dev);
+ if (rc)
+ goto init_err;
+
+ netdev_info(dev, "%s found at mem %lx, node addr %pM\n",
+ board_info[ent->driver_data].name,
+ (long)pci_resource_start(pdev, 0), dev->dev_addr);
+
+ return 0;
+
+init_err:
+ pci_iounmap(pdev, bp->bar0);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+
+init_err_free:
+ free_netdev(dev);
+ return rc;
+}
+
+static struct pci_driver bnxt_pci_driver = {
+ .name = DRV_MODULE_NAME,
+ .id_table = bnxt_pci_tbl,
+ .probe = bnxt_init_one,
+ .remove = bnxt_remove_one,
+#if defined(CONFIG_BNXT_SRIOV)
+ .sriov_configure = bnxt_sriov_configure,
+#endif
+};
+
+module_pci_driver(bnxt_pci_driver);
Code Review / kvmfornfv.git / blobdiff