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path: root/drivers/net/s2io.c
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Diffstat (limited to 'drivers/net/s2io.c')
-rw-r--r--drivers/net/s2io.c542
1 files changed, 159 insertions, 383 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index afef6c0c59fe..2be0a0f1b48f 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -32,12 +32,12 @@
* 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.
* intr_type: This defines the type of interrupt. The values can be 0(INTA),
- * 1(MSI), 2(MSI_X). Default value is '0(INTA)'
+ * 2(MSI_X). Default value is '0(INTA)'
* lro: Specifies whether to enable Large Receive Offload (LRO) or not.
* Possible values '1' for enable '0' for disable. Default is '0'
* lro_max_pkts: This parameter defines maximum number of packets can be
@@ -84,14 +84,14 @@
#include "s2io.h"
#include "s2io-regs.h"
-#define DRV_VERSION "2.0.23.1"
+#define DRV_VERSION "2.0.25.1"
/* S2io Driver name & version. */
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)
{
@@ -282,6 +282,7 @@ static char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = {
("lro_flush_due_to_max_pkts"),
("lro_avg_aggr_pkts"),
("mem_alloc_fail_cnt"),
+ ("pci_map_fail_cnt"),
("watchdog_timer_cnt"),
("mem_allocated"),
("mem_freed"),
@@ -426,7 +427,7 @@ S2IO_PARM_INT(bimodal, 0);
S2IO_PARM_INT(l3l4hdr_size, 128);
/* Frequency of Rx desc syncs expressed as power of 2 */
S2IO_PARM_INT(rxsync_frequency, 3);
-/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */
+/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
S2IO_PARM_INT(intr_type, 0);
/* Large receive offload feature */
S2IO_PARM_INT(lro, 0);
@@ -701,7 +702,7 @@ static int init_shared_mem(struct s2io_nic *nic)
(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.
@@ -870,7 +871,7 @@ static void free_shared_mem(struct s2io_nic *nic)
}
}
- 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 /
@@ -2233,44 +2234,6 @@ static void stop_nic(struct s2io_nic *nic)
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
@@ -2307,6 +2270,9 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
unsigned long flags;
struct RxD_t *first_rxdp = NULL;
u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
+ struct RxD1 *rxdp1;
+ struct RxD3 *rxdp3;
+ struct swStat *stats = &nic->mac_control.stats_info->sw_stat;
mac_control = &nic->mac_control;
config = &nic->config;
@@ -2359,7 +2325,7 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
(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;
@@ -2370,10 +2336,8 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
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);
@@ -2392,33 +2356,35 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
+= 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);
+ if( (rxdp1->Buffer0_ptr == 0) ||
+ (rxdp1->Buffer0_ptr ==
+ DMA_ERROR_CODE))
+ goto pci_map_failed;
+
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);
@@ -2428,14 +2394,18 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
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);
+ if( (rxdp3->Buffer0_ptr == 0) ||
+ (rxdp3->Buffer0_ptr == DMA_ERROR_CODE))
+ goto pci_map_failed;
+
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
if (nic->rxd_mode == RXD_MODE_3B) {
/* Two buffer mode */
@@ -2444,33 +2414,30 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
* 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->Buffer2_ptr == 0) ||
+ (rxdp3->Buffer2_ptr == DMA_ERROR_CODE))
+ goto pci_map_failed;
+
+ rxdp3->Buffer1_ptr =
pci_map_single(nic->pdev,
ba->ba_1, BUF1_LEN,
PCI_DMA_FROMDEVICE);
+ if( (rxdp3->Buffer1_ptr == 0) ||
+ (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) {
+ pci_unmap_single
+ (nic->pdev,
+ (dma_addr_t)skb->data,
+ dev->mtu + 4,
+ PCI_DMA_FROMDEVICE);
+ goto pci_map_failed;
}
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);
}
@@ -2505,6 +2472,11 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
}
return SUCCESS;
+pci_map_failed:
+ stats->pci_map_fail_cnt++;
+ stats->mem_freed += skb->truesize;
+ dev_kfree_skb_irq(skb);
+ return -ENOMEM;
}
static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
@@ -2515,6 +2487,8 @@ static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
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++) {
@@ -2526,40 +2500,30 @@ static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
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));
}
@@ -2756,6 +2720,8 @@ static void rx_intr_handler(struct ring_info *ring_data)
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) {
@@ -2796,32 +2762,23 @@ static void rx_intr_handler(struct ring_info *ring_data)
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);
@@ -3425,23 +3382,8 @@ static void s2io_reset(struct s2io_nic * sp)
/* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
- if (sp->device_type == XFRAME_II_DEVICE) {
- int ret;
- ret = pci_set_power_state(sp->pdev, 3);
- if (!ret)
- ret = pci_set_power_state(sp->pdev, 0);
- else {
- DBG_PRINT(ERR_DBG,"%s PME based SW_Reset failed!\n",
- __FUNCTION__);
- goto old_way;
- }
- msleep(20);
- goto new_way;
- }
-old_way:
val64 = SW_RESET_ALL;
writeq(val64, &bar0->sw_reset);
-new_way:
if (strstr(sp->product_name, "CX4")) {
msleep(750);
}
@@ -3731,56 +3673,6 @@ static void store_xmsi_data(struct s2io_nic *nic)
}
}
-int s2io_enable_msi(struct s2io_nic *nic)
-{
- struct XENA_dev_config __iomem *bar0 = nic->bar0;
- u16 msi_ctrl, msg_val;
- struct config_param *config = &nic->config;
- struct net_device *dev = nic->dev;
- u64 val64, tx_mat, rx_mat;
- int i, err;
-
- val64 = readq(&bar0->pic_control);
- val64 &= ~BIT(1);
- writeq(val64, &bar0->pic_control);
-
- err = pci_enable_msi(nic->pdev);
- if (err) {
- DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n",
- nic->dev->name);
- return err;
- }
-
- /*
- * Enable MSI and use MSI-1 in stead of the standard MSI-0
- * for interrupt handling.
- */
- pci_read_config_word(nic->pdev, 0x4c, &msg_val);
- msg_val ^= 0x1;
- pci_write_config_word(nic->pdev, 0x4c, msg_val);
- pci_read_config_word(nic->pdev, 0x4c, &msg_val);
-
- pci_read_config_word(nic->pdev, 0x42, &msi_ctrl);
- msi_ctrl |= 0x10;
- pci_write_config_word(nic->pdev, 0x42, msi_ctrl);
-
- /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */
- tx_mat = readq(&bar0->tx_mat0_n[0]);
- for (i=0; i<config->tx_fifo_num; i++) {
- tx_mat |= TX_MAT_SET(i, 1);
- }
- writeq(tx_mat, &bar0->tx_mat0_n[0]);
-
- rx_mat = readq(&bar0->rx_mat);
- for (i=0; i<config->rx_ring_num; i++) {
- rx_mat |= RX_MAT_SET(i, 1);
- }
- writeq(rx_mat, &bar0->rx_mat);
-
- dev->irq = nic->pdev->irq;
- return 0;
-}
-
static int s2io_enable_msi_x(struct s2io_nic *nic)
{
struct XENA_dev_config __iomem *bar0 = nic->bar0;
@@ -4001,6 +3893,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
struct mac_info *mac_control;
struct config_param *config;
int offload_type;
+ struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
mac_control = &sp->mac_control;
config = &sp->config;
@@ -4085,11 +3978,18 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Buffer_Pointer = pci_map_single(sp->pdev,
sp->ufo_in_band_v,
sizeof(u64), PCI_DMA_TODEVICE);
+ if((txdp->Buffer_Pointer == 0) ||
+ (txdp->Buffer_Pointer == DMA_ERROR_CODE))
+ goto pci_map_failed;
txdp++;
}
txdp->Buffer_Pointer = pci_map_single
(sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE);
+ if((txdp->Buffer_Pointer == 0) ||
+ (txdp->Buffer_Pointer == DMA_ERROR_CODE))
+ goto pci_map_failed;
+
txdp->Host_Control = (unsigned long) skb;
txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
if (offload_type == SKB_GSO_UDP)
@@ -4146,6 +4046,13 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&sp->tx_lock, flags);
return 0;
+pci_map_failed:
+ stats->pci_map_fail_cnt++;
+ netif_stop_queue(dev);
+ stats->mem_freed += skb->truesize;
+ dev_kfree_skb(skb);
+ spin_unlock_irqrestore(&sp->tx_lock, flags);
+ return 0;
}
static void
@@ -4186,39 +4093,6 @@ static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n)
return 0;
}
-static irqreturn_t s2io_msi_handle(int irq, void *dev_id)
-{
- struct net_device *dev = (struct net_device *) dev_id;
- struct s2io_nic *sp = dev->priv;
- int i;
- struct mac_info *mac_control;
- struct config_param *config;
-
- atomic_inc(&sp->isr_cnt);
- mac_control = &sp->mac_control;
- config = &sp->config;
- DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__);
-
- /* If Intr is because of Rx Traffic */
- for (i = 0; i < config->rx_ring_num; i++)
- rx_intr_handler(&mac_control->rings[i]);
-
- /* If Intr is because of Tx Traffic */
- for (i = 0; i < config->tx_fifo_num; i++)
- tx_intr_handler(&mac_control->fifos[i]);
-
- /*
- * If the Rx buffer count is below the panic threshold then
- * reallocate the buffers from the interrupt handler itself,
- * else schedule a tasklet to reallocate the buffers.
- */
- for (i = 0; i < config->rx_ring_num; i++)
- s2io_chk_rx_buffers(sp, i);
-
- atomic_dec(&sp->isr_cnt);
- return IRQ_HANDLED;
-}
-
static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
{
struct ring_info *ring = (struct ring_info *)dev_id;
@@ -4927,19 +4801,17 @@ static void s2io_ethtool_gringparam(struct net_device *dev,
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++) {
+ for (i = 0 ; i < sp->config.tx_fifo_num ; i++)
tx_desc_count += sp->config.tx_cfg[i].fifo_len;
- }
+
DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds);
ering->tx_pending = tx_desc_count;
rx_desc_count = 0;
- for (i = 0 ; i < sp->config.rx_ring_num ; i++) {
+ for (i = 0 ; i < sp->config.rx_ring_num ; i++)
rx_desc_count += sp->config.rx_cfg[i].num_rxd;
- }
+
ering->rx_pending = rx_desc_count;
ering->rx_mini_max_pending = 0;
@@ -5923,6 +5795,7 @@ static void s2io_get_ethtool_stats(struct net_device *dev,
else
tmp_stats[i++] = 0;
tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.pci_map_fail_cnt;
tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt;
tmp_stats[i++] = stat_info->sw_stat.mem_allocated;
tmp_stats[i++] = stat_info->sw_stat.mem_freed;
@@ -6266,9 +6139,10 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
u64 *temp2, int size)
{
struct net_device *dev = sp->dev;
- struct sk_buff *frag_list;
+ struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
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");
@@ -6277,7 +6151,7 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
* 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)) {
@@ -6294,18 +6168,23 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
* 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);
+ if( (rxdp1->Buffer0_ptr == 0) ||
+ (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) {
+ goto memalloc_failed;
+ }
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)) {
@@ -6318,73 +6197,47 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
}
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 =
+ if( (rxdp3->Buffer2_ptr == 0) ||
+ (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) {
+ goto memalloc_failed;
+ }
+ rxdp3->Buffer0_ptr = *temp0 =
pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN,
PCI_DMA_FROMDEVICE);
+ if( (rxdp3->Buffer0_ptr == 0) ||
+ (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) {
+ pci_unmap_single (sp->pdev,
+ (dma_addr_t)(*skb)->data,
+ dev->mtu + 4, PCI_DMA_FROMDEVICE);
+ goto memalloc_failed;
+ }
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 ;
+ if( (rxdp3->Buffer1_ptr == 0) ||
+ (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) {
+ pci_unmap_single (sp->pdev,
+ (dma_addr_t)(*skb)->data,
+ dev->mtu + 4, PCI_DMA_FROMDEVICE);
+ goto memalloc_failed;
}
- 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;
+ memalloc_failed:
+ stats->pci_map_fail_cnt++;
+ stats->mem_freed += (*skb)->truesize;
+ dev_kfree_skb(*skb);
+ return -ENOMEM;
}
+
static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
int size)
{
@@ -6395,10 +6248,6 @@ static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
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);
}
}
@@ -6420,8 +6269,6 @@ static int rxd_owner_bit_reset(struct s2io_nic *sp)
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 /
@@ -6431,7 +6278,7 @@ static int rxd_owner_bit_reset(struct s2io_nic *sp)
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,
@@ -6458,9 +6305,7 @@ static int s2io_add_isr(struct s2io_nic * sp)
struct net_device *dev = sp->dev;
int err = 0;
- if (sp->intr_type == MSI)
- ret = s2io_enable_msi(sp);
- else if (sp->intr_type == MSI_X)
+ if (sp->intr_type == MSI_X)
ret = s2io_enable_msi_x(sp);
if (ret) {
DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
@@ -6471,16 +6316,6 @@ static int s2io_add_isr(struct s2io_nic * sp)
store_xmsi_data(sp);
/* After proper initialization of H/W, register ISR */
- if (sp->intr_type == MSI) {
- err = request_irq((int) sp->pdev->irq, s2io_msi_handle,
- IRQF_SHARED, sp->name, dev);
- if (err) {
- pci_disable_msi(sp->pdev);
- DBG_PRINT(ERR_DBG, "%s: MSI registration failed\n",
- dev->name);
- return -1;
- }
- }
if (sp->intr_type == MSI_X) {
int i, msix_tx_cnt=0,msix_rx_cnt=0;
@@ -6567,14 +6402,6 @@ static void s2io_rem_isr(struct s2io_nic * sp)
pci_disable_msix(sp->pdev);
} else {
free_irq(sp->pdev->irq, dev);
- if (sp->intr_type == MSI) {
- u16 val;
-
- pci_disable_msi(sp->pdev);
- pci_read_config_word(sp->pdev, 0x4c, &val);
- val ^= 0x1;
- pci_write_config_word(sp->pdev, 0x4c, val);
- }
}
/* Waiting till all Interrupt handlers are complete */
cnt = 0;
@@ -6907,6 +6734,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
}
/* Updating statistics */
+ sp->stats.rx_packets++;
rxdp->Host_Control = 0;
if (sp->rxd_mode == RXD_MODE_1) {
int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
@@ -6914,7 +6742,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
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);
@@ -6924,18 +6752,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
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) ||
@@ -7131,7 +6948,7 @@ static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type)
*dev_intr_type = INTA;
}
#else
- if (*dev_intr_type > MSI_X) {
+ if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. "
"Defaulting to INTA\n");
*dev_intr_type = INTA;
@@ -7145,10 +6962,10 @@ static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type)
*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;
}
@@ -7240,28 +7057,10 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
pci_disable_device(pdev);
return -ENOMEM;
}
- if (dev_intr_type != MSI_X) {
- if (pci_request_regions(pdev, s2io_driver_name)) {
- DBG_PRINT(ERR_DBG, "Request Regions failed\n");
- pci_disable_device(pdev);
- return -ENODEV;
- }
- }
- else {
- if (!(request_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0), s2io_driver_name))) {
- DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n");
- pci_disable_device(pdev);
- return -ENODEV;
- }
- if (!(request_mem_region(pci_resource_start(pdev, 2),
- pci_resource_len(pdev, 2), s2io_driver_name))) {
- DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n");
- release_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- pci_disable_device(pdev);
- return -ENODEV;
- }
+ if ((ret = pci_request_regions(pdev, s2io_driver_name))) {
+ DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x \n", __FUNCTION__, ret);
+ pci_disable_device(pdev);
+ return -ENODEV;
}
dev = alloc_etherdev(sizeof(struct s2io_nic));
@@ -7288,8 +7087,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
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;
@@ -7565,10 +7362,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
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)
@@ -7577,9 +7370,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
case INTA:
DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
break;
- case MSI:
- DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name);
- break;
case MSI_X:
DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
break;
@@ -7619,14 +7409,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
mem_alloc_failed:
free_shared_mem(sp);
pci_disable_device(pdev);
- if (dev_intr_type != MSI_X)
- pci_release_regions(pdev);
- else {
- release_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- release_mem_region(pci_resource_start(pdev, 2),
- pci_resource_len(pdev, 2));
- }
+ pci_release_regions(pdev);
pci_set_drvdata(pdev, NULL);
free_netdev(dev);
@@ -7661,14 +7444,7 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev)
free_shared_mem(sp);
iounmap(sp->bar0);
iounmap(sp->bar1);
- if (sp->intr_type != MSI_X)
- pci_release_regions(pdev);
- else {
- release_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- release_mem_region(pci_resource_start(pdev, 2),
- pci_resource_len(pdev, 2));
- }
+ pci_release_regions(pdev);
pci_set_drvdata(pdev, NULL);
free_netdev(dev);
pci_disable_device(pdev);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-07 22:33:22 +0000