qlcnic: create file qlcnic_io.c for datapath routines
Physical refactoring of 82xx adapter data path routines.
Move data path code to new file qlcnic_io.c
Existing data path code has coding stye issues, the code is
moved to the new file without fixing the style issues.
There is a seperate patch to fix the style issues in qlcnic_io.c
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 67159d6..1d334e9 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -66,8 +66,6 @@
static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
work_func_t func, int delay);
static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
-static int qlcnic_poll(struct napi_struct *napi, int budget);
-static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev);
#endif
@@ -130,23 +128,7 @@
static const
struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
-static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
-{
- writel(0, sds_ring->crb_intr_mask);
-}
-
-static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
-{
- struct qlcnic_adapter *adapter = sds_ring->adapter;
-
- writel(0x1, sds_ring->crb_intr_mask);
-
- if (!QLCNIC_IS_MSI_FAMILY(adapter))
- writel(0xfbff, adapter->tgt_mask_reg);
-}
-
-static int
-qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
+int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
{
int size = sizeof(struct qlcnic_host_sds_ring) * count;
@@ -155,8 +137,7 @@
return recv_ctx->sds_rings == NULL;
}
-static void
-qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
+void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
{
if (recv_ctx->sds_rings != NULL)
kfree(recv_ctx->sds_rings);
@@ -164,80 +145,6 @@
recv_ctx->sds_rings = NULL;
}
-static int
-qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
-{
- int ring;
- struct qlcnic_host_sds_ring *sds_ring;
- struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
-
- if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
- return -ENOMEM;
-
- for (ring = 0; ring < adapter->max_sds_rings; ring++) {
- sds_ring = &recv_ctx->sds_rings[ring];
-
- if (ring == adapter->max_sds_rings - 1)
- netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
- QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
- else
- netif_napi_add(netdev, &sds_ring->napi,
- qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
- }
-
- return 0;
-}
-
-static void
-qlcnic_napi_del(struct qlcnic_adapter *adapter)
-{
- int ring;
- struct qlcnic_host_sds_ring *sds_ring;
- struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
-
- for (ring = 0; ring < adapter->max_sds_rings; ring++) {
- sds_ring = &recv_ctx->sds_rings[ring];
- netif_napi_del(&sds_ring->napi);
- }
-
- qlcnic_free_sds_rings(adapter->recv_ctx);
-}
-
-static void
-qlcnic_napi_enable(struct qlcnic_adapter *adapter)
-{
- int ring;
- struct qlcnic_host_sds_ring *sds_ring;
- struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
-
- if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
- return;
-
- for (ring = 0; ring < adapter->max_sds_rings; ring++) {
- sds_ring = &recv_ctx->sds_rings[ring];
- napi_enable(&sds_ring->napi);
- qlcnic_enable_int(sds_ring);
- }
-}
-
-static void
-qlcnic_napi_disable(struct qlcnic_adapter *adapter)
-{
- int ring;
- struct qlcnic_host_sds_ring *sds_ring;
- struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
-
- if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
- return;
-
- for (ring = 0; ring < adapter->max_sds_rings; ring++) {
- sds_ring = &recv_ctx->sds_rings[ring];
- qlcnic_disable_int(sds_ring);
- napi_synchronize(&sds_ring->napi);
- napi_disable(&sds_ring->napi);
- }
-}
-
static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
{
memset(&adapter->stats, 0, sizeof(adapter->stats));
@@ -1924,428 +1831,6 @@
adapter->fhash.fmax = 0;
}
-static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
- u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
-{
- struct cmd_desc_type0 *hwdesc;
- struct qlcnic_nic_req *req;
- struct qlcnic_mac_req *mac_req;
- struct qlcnic_vlan_req *vlan_req;
- u32 producer;
- u64 word;
-
- producer = tx_ring->producer;
- hwdesc = &tx_ring->desc_head[tx_ring->producer];
-
- req = (struct qlcnic_nic_req *)hwdesc;
- memset(req, 0, sizeof(struct qlcnic_nic_req));
- req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
-
- word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
- req->req_hdr = cpu_to_le64(word);
-
- mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
- mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
- memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
-
- vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
- vlan_req->vlan_id = vlan_id;
-
- tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
- smp_mb();
-}
-
-#define QLCNIC_MAC_HASH(MAC)\
- ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
-
-static void
-qlcnic_send_filter(struct qlcnic_adapter *adapter,
- struct qlcnic_host_tx_ring *tx_ring,
- struct cmd_desc_type0 *first_desc,
- struct sk_buff *skb)
-{
- struct ethhdr *phdr = (struct ethhdr *)(skb->data);
- struct qlcnic_filter *fil, *tmp_fil;
- struct hlist_node *tmp_hnode, *n;
- struct hlist_head *head;
- u64 src_addr = 0;
- __le16 vlan_id = 0;
- u8 hindex;
-
- if (ether_addr_equal(phdr->h_source, adapter->mac_addr))
- return;
-
- if (adapter->fhash.fnum >= adapter->fhash.fmax)
- return;
-
- /* Only NPAR capable devices support vlan based learning*/
- if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
- vlan_id = first_desc->vlan_TCI;
- memcpy(&src_addr, phdr->h_source, ETH_ALEN);
- hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
- head = &(adapter->fhash.fhead[hindex]);
-
- hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
- if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
- tmp_fil->vlan_id == vlan_id) {
-
- if (jiffies >
- (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
- qlcnic_change_filter(adapter, src_addr, vlan_id,
- tx_ring);
- tmp_fil->ftime = jiffies;
- return;
- }
- }
-
- fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
- if (!fil)
- return;
-
- qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
-
- fil->ftime = jiffies;
- fil->vlan_id = vlan_id;
- memcpy(fil->faddr, &src_addr, ETH_ALEN);
- spin_lock(&adapter->mac_learn_lock);
- hlist_add_head(&(fil->fnode), head);
- adapter->fhash.fnum++;
- spin_unlock(&adapter->mac_learn_lock);
-}
-
-static int
-qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
- struct cmd_desc_type0 *first_desc,
- struct sk_buff *skb)
-{
- u8 opcode = 0, hdr_len = 0;
- u16 flags = 0, vlan_tci = 0;
- int copied, offset, copy_len;
- struct cmd_desc_type0 *hwdesc;
- struct vlan_ethhdr *vh;
- struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
- u16 protocol = ntohs(skb->protocol);
- u32 producer = tx_ring->producer;
-
- if (protocol == ETH_P_8021Q) {
- vh = (struct vlan_ethhdr *)skb->data;
- flags = FLAGS_VLAN_TAGGED;
- vlan_tci = ntohs(vh->h_vlan_TCI);
- protocol = ntohs(vh->h_vlan_encapsulated_proto);
- } else if (vlan_tx_tag_present(skb)) {
- flags = FLAGS_VLAN_OOB;
- vlan_tci = vlan_tx_tag_get(skb);
- }
- if (unlikely(adapter->pvid)) {
- if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
- return -EIO;
- if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
- goto set_flags;
-
- flags = FLAGS_VLAN_OOB;
- vlan_tci = adapter->pvid;
- }
-set_flags:
- qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
- qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
-
- if (*(skb->data) & BIT_0) {
- flags |= BIT_0;
- memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
- }
- opcode = TX_ETHER_PKT;
- if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
- skb_shinfo(skb)->gso_size > 0) {
-
- hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
-
- first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
- first_desc->total_hdr_length = hdr_len;
-
- opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
-
- /* For LSO, we need to copy the MAC/IP/TCP headers into
- * the descriptor ring */
- copied = 0;
- offset = 2;
-
- if (flags & FLAGS_VLAN_OOB) {
- first_desc->total_hdr_length += VLAN_HLEN;
- first_desc->tcp_hdr_offset = VLAN_HLEN;
- first_desc->ip_hdr_offset = VLAN_HLEN;
- /* Only in case of TSO on vlan device */
- flags |= FLAGS_VLAN_TAGGED;
-
- /* Create a TSO vlan header template for firmware */
-
- hwdesc = &tx_ring->desc_head[producer];
- tx_ring->cmd_buf_arr[producer].skb = NULL;
-
- copy_len = min((int)sizeof(struct cmd_desc_type0) -
- offset, hdr_len + VLAN_HLEN);
-
- vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
- skb_copy_from_linear_data(skb, vh, 12);
- vh->h_vlan_proto = htons(ETH_P_8021Q);
- vh->h_vlan_TCI = htons(vlan_tci);
-
- skb_copy_from_linear_data_offset(skb, 12,
- (char *)vh + 16, copy_len - 16);
-
- copied = copy_len - VLAN_HLEN;
- offset = 0;
-
- producer = get_next_index(producer, tx_ring->num_desc);
- }
-
- while (copied < hdr_len) {
-
- copy_len = min((int)sizeof(struct cmd_desc_type0) -
- offset, (hdr_len - copied));
-
- hwdesc = &tx_ring->desc_head[producer];
- tx_ring->cmd_buf_arr[producer].skb = NULL;
-
- skb_copy_from_linear_data_offset(skb, copied,
- (char *) hwdesc + offset, copy_len);
-
- copied += copy_len;
- offset = 0;
-
- producer = get_next_index(producer, tx_ring->num_desc);
- }
-
- tx_ring->producer = producer;
- smp_mb();
- adapter->stats.lso_frames++;
-
- } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- u8 l4proto;
-
- if (protocol == ETH_P_IP) {
- l4proto = ip_hdr(skb)->protocol;
-
- if (l4proto == IPPROTO_TCP)
- opcode = TX_TCP_PKT;
- else if (l4proto == IPPROTO_UDP)
- opcode = TX_UDP_PKT;
- } else if (protocol == ETH_P_IPV6) {
- l4proto = ipv6_hdr(skb)->nexthdr;
-
- if (l4proto == IPPROTO_TCP)
- opcode = TX_TCPV6_PKT;
- else if (l4proto == IPPROTO_UDP)
- opcode = TX_UDPV6_PKT;
- }
- }
- first_desc->tcp_hdr_offset += skb_transport_offset(skb);
- first_desc->ip_hdr_offset += skb_network_offset(skb);
- qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
-
- return 0;
-}
-
-static int
-qlcnic_map_tx_skb(struct pci_dev *pdev,
- struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
-{
- struct qlcnic_skb_frag *nf;
- struct skb_frag_struct *frag;
- int i, nr_frags;
- dma_addr_t map;
-
- nr_frags = skb_shinfo(skb)->nr_frags;
- nf = &pbuf->frag_array[0];
-
- map = pci_map_single(pdev, skb->data,
- skb_headlen(skb), PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(pdev, map))
- goto out_err;
-
- nf->dma = map;
- nf->length = skb_headlen(skb);
-
- for (i = 0; i < nr_frags; i++) {
- frag = &skb_shinfo(skb)->frags[i];
- nf = &pbuf->frag_array[i+1];
-
- map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
- DMA_TO_DEVICE);
- if (dma_mapping_error(&pdev->dev, map))
- goto unwind;
-
- nf->dma = map;
- nf->length = skb_frag_size(frag);
- }
-
- return 0;
-
-unwind:
- while (--i >= 0) {
- nf = &pbuf->frag_array[i+1];
- pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
- }
-
- nf = &pbuf->frag_array[0];
- pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
-
-out_err:
- return -ENOMEM;
-}
-
-static void
-qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
- struct qlcnic_cmd_buffer *pbuf)
-{
- struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
- int nr_frags = skb_shinfo(skb)->nr_frags;
- int i;
-
- for (i = 0; i < nr_frags; i++) {
- nf = &pbuf->frag_array[i+1];
- pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
- }
-
- nf = &pbuf->frag_array[0];
- pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
- pbuf->skb = NULL;
-}
-
-static inline void
-qlcnic_clear_cmddesc(u64 *desc)
-{
- desc[0] = 0ULL;
- desc[2] = 0ULL;
- desc[7] = 0ULL;
-}
-
-netdev_tx_t
-qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
- struct qlcnic_adapter *adapter = netdev_priv(netdev);
- struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
- struct qlcnic_cmd_buffer *pbuf;
- struct qlcnic_skb_frag *buffrag;
- struct cmd_desc_type0 *hwdesc, *first_desc;
- struct pci_dev *pdev;
- struct ethhdr *phdr;
- int delta = 0;
- int i, k;
-
- u32 producer;
- int frag_count;
- u32 num_txd = tx_ring->num_desc;
-
- if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
- netif_stop_queue(netdev);
- return NETDEV_TX_BUSY;
- }
-
- if (adapter->flags & QLCNIC_MACSPOOF) {
- phdr = (struct ethhdr *)skb->data;
- if (!ether_addr_equal(phdr->h_source, adapter->mac_addr))
- goto drop_packet;
- }
-
- frag_count = skb_shinfo(skb)->nr_frags + 1;
- /* 14 frags supported for normal packet and
- * 32 frags supported for TSO packet
- */
- if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
-
- for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
- delta += skb_frag_size(&skb_shinfo(skb)->frags[i]);
-
- if (!__pskb_pull_tail(skb, delta))
- goto drop_packet;
-
- frag_count = 1 + skb_shinfo(skb)->nr_frags;
- }
-
- if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
- netif_stop_queue(netdev);
- if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
- netif_start_queue(netdev);
- else {
- adapter->stats.xmit_off++;
- return NETDEV_TX_BUSY;
- }
- }
-
- producer = tx_ring->producer;
- pbuf = &tx_ring->cmd_buf_arr[producer];
-
- pdev = adapter->pdev;
-
- first_desc = hwdesc = &tx_ring->desc_head[producer];
- qlcnic_clear_cmddesc((u64 *)hwdesc);
-
- if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
- adapter->stats.tx_dma_map_error++;
- goto drop_packet;
- }
-
- pbuf->skb = skb;
- pbuf->frag_count = frag_count;
-
- qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
- qlcnic_set_tx_port(first_desc, adapter->portnum);
-
- for (i = 0; i < frag_count; i++) {
-
- k = i % 4;
-
- if ((k == 0) && (i > 0)) {
- /* move to next desc.*/
- producer = get_next_index(producer, num_txd);
- hwdesc = &tx_ring->desc_head[producer];
- qlcnic_clear_cmddesc((u64 *)hwdesc);
- tx_ring->cmd_buf_arr[producer].skb = NULL;
- }
-
- buffrag = &pbuf->frag_array[i];
-
- hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
- switch (k) {
- case 0:
- hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
- break;
- case 1:
- hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
- break;
- case 2:
- hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
- break;
- case 3:
- hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
- break;
- }
- }
-
- tx_ring->producer = get_next_index(producer, num_txd);
- smp_mb();
-
- if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
- goto unwind_buff;
-
- if (adapter->mac_learn)
- qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
-
- adapter->stats.txbytes += skb->len;
- adapter->stats.xmitcalled++;
-
- qlcnic_update_cmd_producer(tx_ring);
-
- return NETDEV_TX_OK;
-
-unwind_buff:
- qlcnic_unmap_buffers(pdev, skb, pbuf);
-drop_packet:
- adapter->stats.txdropped++;
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
-}
-
static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
@@ -2382,27 +1867,6 @@
return rv;
}
-void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
-{
- struct net_device *netdev = adapter->netdev;
-
- if (adapter->ahw->linkup && !linkup) {
- netdev_info(netdev, "NIC Link is down\n");
- adapter->ahw->linkup = 0;
- if (netif_running(netdev)) {
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- } else if (!adapter->ahw->linkup && linkup) {
- netdev_info(netdev, "NIC Link is up\n");
- adapter->ahw->linkup = 1;
- if (netif_running(netdev)) {
- netif_carrier_on(netdev);
- netif_wake_queue(netdev);
- }
- }
-}
-
static void qlcnic_tx_timeout(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
@@ -2509,122 +1973,6 @@
return IRQ_HANDLED;
}
-static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
-{
- u32 sw_consumer, hw_consumer;
- int count = 0, i;
- struct qlcnic_cmd_buffer *buffer;
- struct pci_dev *pdev = adapter->pdev;
- struct net_device *netdev = adapter->netdev;
- struct qlcnic_skb_frag *frag;
- int done;
- struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
-
- if (!spin_trylock(&adapter->tx_clean_lock))
- return 1;
-
- sw_consumer = tx_ring->sw_consumer;
- hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
-
- while (sw_consumer != hw_consumer) {
- buffer = &tx_ring->cmd_buf_arr[sw_consumer];
- if (buffer->skb) {
- frag = &buffer->frag_array[0];
- pci_unmap_single(pdev, frag->dma, frag->length,
- PCI_DMA_TODEVICE);
- frag->dma = 0ULL;
- for (i = 1; i < buffer->frag_count; i++) {
- frag++;
- pci_unmap_page(pdev, frag->dma, frag->length,
- PCI_DMA_TODEVICE);
- frag->dma = 0ULL;
- }
-
- adapter->stats.xmitfinished++;
- dev_kfree_skb_any(buffer->skb);
- buffer->skb = NULL;
- }
-
- sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
- if (++count >= MAX_STATUS_HANDLE)
- break;
- }
-
- if (count && netif_running(netdev)) {
- tx_ring->sw_consumer = sw_consumer;
-
- smp_mb();
-
- if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
- if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
- netif_wake_queue(netdev);
- adapter->stats.xmit_on++;
- }
- }
- adapter->tx_timeo_cnt = 0;
- }
- /*
- * If everything is freed up to consumer then check if the ring is full
- * If the ring is full then check if more needs to be freed and
- * schedule the call back again.
- *
- * This happens when there are 2 CPUs. One could be freeing and the
- * other filling it. If the ring is full when we get out of here and
- * the card has already interrupted the host then the host can miss the
- * interrupt.
- *
- * There is still a possible race condition and the host could miss an
- * interrupt. The card has to take care of this.
- */
- hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
- done = (sw_consumer == hw_consumer);
- spin_unlock(&adapter->tx_clean_lock);
-
- return done;
-}
-
-static int qlcnic_poll(struct napi_struct *napi, int budget)
-{
- struct qlcnic_host_sds_ring *sds_ring =
- container_of(napi, struct qlcnic_host_sds_ring, napi);
-
- struct qlcnic_adapter *adapter = sds_ring->adapter;
-
- int tx_complete;
- int work_done;
-
- tx_complete = qlcnic_process_cmd_ring(adapter);
-
- work_done = qlcnic_process_rcv_ring(sds_ring, budget);
-
- if ((work_done < budget) && tx_complete) {
- napi_complete(&sds_ring->napi);
- if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
- qlcnic_enable_int(sds_ring);
- }
-
- return work_done;
-}
-
-static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
-{
- struct qlcnic_host_sds_ring *sds_ring =
- container_of(napi, struct qlcnic_host_sds_ring, napi);
-
- struct qlcnic_adapter *adapter = sds_ring->adapter;
- int work_done;
-
- work_done = qlcnic_process_rcv_ring(sds_ring, budget);
-
- if (work_done < budget) {
- napi_complete(&sds_ring->napi);
- if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
- qlcnic_enable_int(sds_ring);
- }
-
- return work_done;
-}
-
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev)
{