* rx_ring_sz: This defines the number of receive blocks each ring can have.
* This is also an array of size 8.
* rx_ring_mode: This defines the operation mode of all 8 rings. The valid
- * values are 1, 2 and 3.
+ * values are 1, 2.
* tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
* tx_fifo_len: This too is an array of 8. Each element defines the number of
* Tx descriptors that can be associated with each corresponding FIFO.
static char s2io_driver_name[] = "Neterion";
static char s2io_driver_version[] = DRV_VERSION;
-static int rxd_size[4] = {32,48,48,64};
-static int rxd_count[4] = {127,85,85,63};
+static int rxd_size[2] = {32,48};
+static int rxd_count[2] = {127,85};
static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
{
(u64) tmp_p_addr_next;
}
}
- if (nic->rxd_mode >= RXD_MODE_3A) {
+ if (nic->rxd_mode == RXD_MODE_3B) {
/*
* Allocation of Storages for buffer addresses in 2BUFF mode
* and the buffers as well.
}
}
- if (nic->rxd_mode >= RXD_MODE_3A) {
+ if (nic->rxd_mode == RXD_MODE_3B) {
/* Freeing buffer storage addresses in 2BUFF mode. */
for (i = 0; i < config->rx_ring_num; i++) {
blk_cnt = config->rx_cfg[i].num_rxd /
writeq(val64, &bar0->adapter_control);
}
-static int fill_rxd_3buf(struct s2io_nic *nic, struct RxD_t *rxdp, struct \
- sk_buff *skb)
-{
- struct net_device *dev = nic->dev;
- struct sk_buff *frag_list;
- void *tmp;
-
- /* Buffer-1 receives L3/L4 headers */
- ((struct RxD3*)rxdp)->Buffer1_ptr = pci_map_single
- (nic->pdev, skb->data, l3l4hdr_size + 4,
- PCI_DMA_FROMDEVICE);
-
- /* skb_shinfo(skb)->frag_list will have L4 data payload */
- skb_shinfo(skb)->frag_list = dev_alloc_skb(dev->mtu + ALIGN_SIZE);
- if (skb_shinfo(skb)->frag_list == NULL) {
- nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++;
- DBG_PRINT(INFO_DBG, "%s: dev_alloc_skb failed\n ", dev->name);
- return -ENOMEM ;
- }
- frag_list = skb_shinfo(skb)->frag_list;
- skb->truesize += frag_list->truesize;
- nic->mac_control.stats_info->sw_stat.mem_allocated
- += frag_list->truesize;
- frag_list->next = NULL;
- tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1);
- frag_list->data = tmp;
- skb_reset_tail_pointer(frag_list);
-
- /* Buffer-2 receives L4 data payload */
- ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev,
- frag_list->data, dev->mtu,
- PCI_DMA_FROMDEVICE);
- rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4);
- rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu);
-
- return SUCCESS;
-}
-
/**
* fill_rx_buffers - Allocates the Rx side skbs
* @nic: device private variable
unsigned long flags;
struct RxD_t *first_rxdp = NULL;
u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
+ struct RxD1 *rxdp1;
+ struct RxD3 *rxdp3;
mac_control = &nic->mac_control;
config = &nic->config;
(block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
}
if ((rxdp->Control_1 & RXD_OWN_XENA) &&
- ((nic->rxd_mode >= RXD_MODE_3A) &&
+ ((nic->rxd_mode == RXD_MODE_3B) &&
(rxdp->Control_2 & BIT(0)))) {
mac_control->rings[ring_no].rx_curr_put_info.
offset = off;
HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
if (nic->rxd_mode == RXD_MODE_1)
size += NET_IP_ALIGN;
- else if (nic->rxd_mode == RXD_MODE_3B)
- size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
else
- size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4;
+ size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
/* allocate skb */
skb = dev_alloc_skb(size);
+= skb->truesize;
if (nic->rxd_mode == RXD_MODE_1) {
/* 1 buffer mode - normal operation mode */
+ rxdp1 = (struct RxD1*)rxdp;
memset(rxdp, 0, sizeof(struct RxD1));
skb_reserve(skb, NET_IP_ALIGN);
- ((struct RxD1*)rxdp)->Buffer0_ptr = pci_map_single
+ rxdp1->Buffer0_ptr = pci_map_single
(nic->pdev, skb->data, size - NET_IP_ALIGN,
PCI_DMA_FROMDEVICE);
rxdp->Control_2 =
SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
- } else if (nic->rxd_mode >= RXD_MODE_3A) {
+ } else if (nic->rxd_mode == RXD_MODE_3B) {
/*
- * 2 or 3 buffer mode -
- * Both 2 buffer mode and 3 buffer mode provides 128
+ * 2 buffer mode -
+ * 2 buffer mode provides 128
* byte aligned receive buffers.
- *
- * 3 buffer mode provides header separation where in
- * skb->data will have L3/L4 headers where as
- * skb_shinfo(skb)->frag_list will have the L4 data
- * payload
*/
+ rxdp3 = (struct RxD3*)rxdp;
/* save buffer pointers to avoid frequent dma mapping */
- Buffer0_ptr = ((struct RxD3*)rxdp)->Buffer0_ptr;
- Buffer1_ptr = ((struct RxD3*)rxdp)->Buffer1_ptr;
+ Buffer0_ptr = rxdp3->Buffer0_ptr;
+ Buffer1_ptr = rxdp3->Buffer1_ptr;
memset(rxdp, 0, sizeof(struct RxD3));
/* restore the buffer pointers for dma sync*/
- ((struct RxD3*)rxdp)->Buffer0_ptr = Buffer0_ptr;
- ((struct RxD3*)rxdp)->Buffer1_ptr = Buffer1_ptr;
+ rxdp3->Buffer0_ptr = Buffer0_ptr;
+ rxdp3->Buffer1_ptr = Buffer1_ptr;
ba = &mac_control->rings[ring_no].ba[block_no][off];
skb_reserve(skb, BUF0_LEN);
skb->data = (void *) (unsigned long)tmp;
skb_reset_tail_pointer(skb);
- if (!(((struct RxD3*)rxdp)->Buffer0_ptr))
- ((struct RxD3*)rxdp)->Buffer0_ptr =
+ if (!(rxdp3->Buffer0_ptr))
+ rxdp3->Buffer0_ptr =
pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
PCI_DMA_FROMDEVICE);
else
pci_dma_sync_single_for_device(nic->pdev,
- (dma_addr_t) ((struct RxD3*)rxdp)->Buffer0_ptr,
+ (dma_addr_t) rxdp3->Buffer0_ptr,
BUF0_LEN, PCI_DMA_FROMDEVICE);
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
if (nic->rxd_mode == RXD_MODE_3B) {
* Buffer2 will have L3/L4 header plus
* L4 payload
*/
- ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single
+ rxdp3->Buffer2_ptr = pci_map_single
(nic->pdev, skb->data, dev->mtu + 4,
PCI_DMA_FROMDEVICE);
/* Buffer-1 will be dummy buffer. Not used */
- if (!(((struct RxD3*)rxdp)->Buffer1_ptr)) {
- ((struct RxD3*)rxdp)->Buffer1_ptr =
+ if (!(rxdp3->Buffer1_ptr)) {
+ rxdp3->Buffer1_ptr =
pci_map_single(nic->pdev,
ba->ba_1, BUF1_LEN,
PCI_DMA_FROMDEVICE);
rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
rxdp->Control_2 |= SET_BUFFER2_SIZE_3
(dev->mtu + 4);
- } else {
- /* 3 buffer mode */
- if (fill_rxd_3buf(nic, rxdp, skb) == -ENOMEM) {
- nic->mac_control.stats_info->sw_stat.\
- mem_freed += skb->truesize;
- dev_kfree_skb_irq(skb);
- if (first_rxdp) {
- wmb();
- first_rxdp->Control_1 |=
- RXD_OWN_XENA;
- }
- return -ENOMEM ;
- }
}
rxdp->Control_2 |= BIT(0);
}
struct RxD_t *rxdp;
struct mac_info *mac_control;
struct buffAdd *ba;
+ struct RxD1 *rxdp1;
+ struct RxD3 *rxdp3;
mac_control = &sp->mac_control;
for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
continue;
}
if (sp->rxd_mode == RXD_MODE_1) {
+ rxdp1 = (struct RxD1*)rxdp;
pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD1*)rxdp)->Buffer0_ptr,
- dev->mtu +
- HEADER_ETHERNET_II_802_3_SIZE
- + HEADER_802_2_SIZE +
- HEADER_SNAP_SIZE,
- PCI_DMA_FROMDEVICE);
+ rxdp1->Buffer0_ptr,
+ dev->mtu +
+ HEADER_ETHERNET_II_802_3_SIZE
+ + HEADER_802_2_SIZE +
+ HEADER_SNAP_SIZE,
+ PCI_DMA_FROMDEVICE);
memset(rxdp, 0, sizeof(struct RxD1));
} else if(sp->rxd_mode == RXD_MODE_3B) {
+ rxdp3 = (struct RxD3*)rxdp;
ba = &mac_control->rings[ring_no].
ba[blk][j];
pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer0_ptr,
- BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer1_ptr,
- BUF1_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer2_ptr,
- dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
- memset(rxdp, 0, sizeof(struct RxD3));
- } else {
- pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN,
+ rxdp3->Buffer0_ptr,
+ BUF0_LEN,
PCI_DMA_FROMDEVICE);
pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer1_ptr,
- l3l4hdr_size + 4,
+ rxdp3->Buffer1_ptr,
+ BUF1_LEN,
PCI_DMA_FROMDEVICE);
pci_unmap_single(sp->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer2_ptr, dev->mtu,
+ rxdp3->Buffer2_ptr,
+ dev->mtu + 4,
PCI_DMA_FROMDEVICE);
memset(rxdp, 0, sizeof(struct RxD3));
}
struct sk_buff *skb;
int pkt_cnt = 0;
int i;
+ struct RxD1* rxdp1;
+ struct RxD3* rxdp3;
spin_lock(&nic->rx_lock);
if (atomic_read(&nic->card_state) == CARD_DOWN) {
return;
}
if (nic->rxd_mode == RXD_MODE_1) {
+ rxdp1 = (struct RxD1*)rxdp;
pci_unmap_single(nic->pdev, (dma_addr_t)
- ((struct RxD1*)rxdp)->Buffer0_ptr,
- dev->mtu +
- HEADER_ETHERNET_II_802_3_SIZE +
- HEADER_802_2_SIZE +
- HEADER_SNAP_SIZE,
- PCI_DMA_FROMDEVICE);
+ rxdp1->Buffer0_ptr,
+ dev->mtu +
+ HEADER_ETHERNET_II_802_3_SIZE +
+ HEADER_802_2_SIZE +
+ HEADER_SNAP_SIZE,
+ PCI_DMA_FROMDEVICE);
} else if (nic->rxd_mode == RXD_MODE_3B) {
+ rxdp3 = (struct RxD3*)rxdp;
pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer0_ptr,
- BUF0_LEN, PCI_DMA_FROMDEVICE);
- pci_unmap_single(nic->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer2_ptr,
- dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
- } else {
- pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(nic->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer1_ptr,
- l3l4hdr_size + 4,
- PCI_DMA_FROMDEVICE);
+ rxdp3->Buffer0_ptr,
+ BUF0_LEN, PCI_DMA_FROMDEVICE);
pci_unmap_single(nic->pdev, (dma_addr_t)
- ((struct RxD3*)rxdp)->Buffer2_ptr,
- dev->mtu, PCI_DMA_FROMDEVICE);
+ rxdp3->Buffer2_ptr,
+ dev->mtu + 4,
+ PCI_DMA_FROMDEVICE);
}
prefetch(skb->data);
rx_osm_handler(ring_data, rxdp);
ering->rx_max_pending = MAX_RX_DESC_1;
else if (sp->rxd_mode == RXD_MODE_3B)
ering->rx_max_pending = MAX_RX_DESC_2;
- else if (sp->rxd_mode == RXD_MODE_3A)
- ering->rx_max_pending = MAX_RX_DESC_3;
ering->tx_max_pending = MAX_TX_DESC;
for (i = 0 ; i < sp->config.tx_fifo_num ; i++) {
u64 *temp2, int size)
{
struct net_device *dev = sp->dev;
- struct sk_buff *frag_list;
if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
+ struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
/* allocate skb */
if (*skb) {
DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
* using same mapped address for the Rxd
* buffer pointer
*/
- ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0;
+ rxdp1->Buffer0_ptr = *temp0;
} else {
*skb = dev_alloc_skb(size);
if (!(*skb)) {
* such it will be used for next rxd whose
* Host Control is NULL
*/
- ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0 =
+ rxdp1->Buffer0_ptr = *temp0 =
pci_map_single( sp->pdev, (*skb)->data,
size - NET_IP_ALIGN,
PCI_DMA_FROMDEVICE);
rxdp->Host_Control = (unsigned long) (*skb);
}
} else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
+ struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
/* Two buffer Mode */
if (*skb) {
- ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2;
- ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0;
- ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1;
+ rxdp3->Buffer2_ptr = *temp2;
+ rxdp3->Buffer0_ptr = *temp0;
+ rxdp3->Buffer1_ptr = *temp1;
} else {
*skb = dev_alloc_skb(size);
if (!(*skb)) {
}
sp->mac_control.stats_info->sw_stat.mem_allocated
+= (*skb)->truesize;
- ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 =
+ rxdp3->Buffer2_ptr = *temp2 =
pci_map_single(sp->pdev, (*skb)->data,
dev->mtu + 4,
PCI_DMA_FROMDEVICE);
- ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 =
+ rxdp3->Buffer0_ptr = *temp0 =
pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN,
PCI_DMA_FROMDEVICE);
rxdp->Host_Control = (unsigned long) (*skb);
/* Buffer-1 will be dummy buffer not used */
- ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 =
+ rxdp3->Buffer1_ptr = *temp1 =
pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
- PCI_DMA_FROMDEVICE);
- }
- } else if ((rxdp->Host_Control == 0)) {
- /* Three buffer mode */
- if (*skb) {
- ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0;
- ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1;
- ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2;
- } else {
- *skb = dev_alloc_skb(size);
- if (!(*skb)) {
- DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name);
- DBG_PRINT(INFO_DBG, "memory to allocate ");
- DBG_PRINT(INFO_DBG, "3 buf mode SKBs\n");
- sp->mac_control.stats_info->sw_stat. \
- mem_alloc_fail_cnt++;
- return -ENOMEM;
- }
- sp->mac_control.stats_info->sw_stat.mem_allocated
- += (*skb)->truesize;
- ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 =
- pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- /* Buffer-1 receives L3/L4 headers */
- ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 =
- pci_map_single( sp->pdev, (*skb)->data,
- l3l4hdr_size + 4,
PCI_DMA_FROMDEVICE);
- /*
- * skb_shinfo(skb)->frag_list will have L4
- * data payload
- */
- skb_shinfo(*skb)->frag_list = dev_alloc_skb(dev->mtu +
- ALIGN_SIZE);
- if (skb_shinfo(*skb)->frag_list == NULL) {
- DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb \
- failed\n ", dev->name);
- sp->mac_control.stats_info->sw_stat. \
- mem_alloc_fail_cnt++;
- return -ENOMEM ;
- }
- frag_list = skb_shinfo(*skb)->frag_list;
- frag_list->next = NULL;
- sp->mac_control.stats_info->sw_stat.mem_allocated
- += frag_list->truesize;
- /*
- * Buffer-2 receives L4 data payload
- */
- ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 =
- pci_map_single( sp->pdev, frag_list->data,
- dev->mtu, PCI_DMA_FROMDEVICE);
}
}
return 0;
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4);
- } else {
- rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
- rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4);
- rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu);
}
}
size += NET_IP_ALIGN;
else if (sp->rxd_mode == RXD_MODE_3B)
size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
- else
- size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4;
for (i = 0; i < config->rx_ring_num; i++) {
blk_cnt = config->rx_cfg[i].num_rxd /
for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
rxdp = mac_control->rings[i].
rx_blocks[j].rxds[k].virt_addr;
- if(sp->rxd_mode >= RXD_MODE_3A)
+ if(sp->rxd_mode == RXD_MODE_3B)
ba = &mac_control->rings[i].ba[j][k];
if (set_rxd_buffer_pointer(sp, rxdp, ba,
&skb,(u64 *)&temp0_64,
sp->stats.rx_bytes += len;
skb_put(skb, len);
- } else if (sp->rxd_mode >= RXD_MODE_3A) {
+ } else if (sp->rxd_mode == RXD_MODE_3B) {
int get_block = ring_data->rx_curr_get_info.block_index;
int get_off = ring_data->rx_curr_get_info.offset;
int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
struct buffAdd *ba = &ring_data->ba[get_block][get_off];
sp->stats.rx_bytes += buf0_len + buf2_len;
memcpy(buff, ba->ba_0, buf0_len);
-
- if (sp->rxd_mode == RXD_MODE_3A) {
- int buf1_len = RXD_GET_BUFFER1_SIZE_3(rxdp->Control_2);
-
- skb_put(skb, buf1_len);
- skb->len += buf2_len;
- skb->data_len += buf2_len;
- skb_put(skb_shinfo(skb)->frag_list, buf2_len);
- sp->stats.rx_bytes += buf1_len;
-
- } else
- skb_put(skb, buf2_len);
+ skb_put(skb, buf2_len);
}
if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) ||
*dev_intr_type = INTA;
}
- if (rx_ring_mode > 3) {
+ if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n");
- DBG_PRINT(ERR_DBG, "s2io: Defaulting to 3-buffer mode\n");
- rx_ring_mode = 3;
+ DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n");
+ rx_ring_mode = 1;
}
return SUCCESS;
}
sp->rxd_mode = RXD_MODE_1;
if (rx_ring_mode == 2)
sp->rxd_mode = RXD_MODE_3B;
- if (rx_ring_mode == 3)
- sp->rxd_mode = RXD_MODE_3A;
sp->intr_type = dev_intr_type;
DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
dev->name);
break;
- case RXD_MODE_3A:
- DBG_PRINT(ERR_DBG, "%s: 3-Buffer receive mode enabled\n",
- dev->name);
- break;
}
if (napi)
projects / linux-2.6 / commitdiff