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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.c90
1 files changed, 53 insertions, 37 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 51a91154125..517425dcb77 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -86,7 +86,7 @@
#include "s2io.h"
#include "s2io-regs.h"
-#define DRV_VERSION "2.0.26.24"
+#define DRV_VERSION "2.0.26.25"
/* S2io Driver name & version. */
static char s2io_driver_name[] = "Neterion";
@@ -1891,8 +1891,6 @@ static int init_nic(struct s2io_nic *nic)
static int s2io_link_fault_indication(struct s2io_nic *nic)
{
- if (nic->config.intr_type != INTA)
- return MAC_RMAC_ERR_TIMER;
if (nic->device_type == XFRAME_II_DEVICE)
return LINK_UP_DOWN_INTERRUPT;
else
@@ -1925,7 +1923,9 @@ static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
{
struct XENA_dev_config __iomem *bar0 = nic->bar0;
register u64 gen_int_mask = 0;
+ u64 interruptible;
+ writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask);
if (mask & TX_DMA_INTR) {
gen_int_mask |= TXDMA_INT_M;
@@ -2015,10 +2015,12 @@ static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
gen_int_mask |= RXMAC_INT_M;
do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
&bar0->mac_int_mask);
- do_s2io_write_bits(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
+ interruptible = RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
- RMAC_DOUBLE_ECC_ERR |
- RMAC_LINK_STATE_CHANGE_INT,
+ RMAC_DOUBLE_ECC_ERR;
+ if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER)
+ interruptible |= RMAC_LINK_STATE_CHANGE_INT;
+ do_s2io_write_bits(interruptible,
flag, &bar0->mac_rmac_err_mask);
}
@@ -2501,6 +2503,9 @@ static void stop_nic(struct s2io_nic *nic)
/**
* fill_rx_buffers - Allocates the Rx side skbs
* @ring_info: per ring structure
+ * @from_card_up: If this is true, we will map the buffer to get
+ * the dma address for buf0 and buf1 to give it to the card.
+ * Else we will sync the already mapped buffer to give it to the card.
* Description:
* The function allocates Rx side skbs and puts the physical
* address of these buffers into the RxD buffer pointers, so that the NIC
@@ -2518,7 +2523,7 @@ static void stop_nic(struct s2io_nic *nic)
* SUCCESS on success or an appropriate -ve value on failure.
*/
-static int fill_rx_buffers(struct ring_info *ring)
+static int fill_rx_buffers(struct ring_info *ring, int from_card_up)
{
struct sk_buff *skb;
struct RxD_t *rxdp;
@@ -2637,17 +2642,16 @@ static int fill_rx_buffers(struct ring_info *ring)
skb->data = (void *) (unsigned long)tmp;
skb_reset_tail_pointer(skb);
- /* AK: check is wrong. 0 can be valid dma address */
- if (!(rxdp3->Buffer0_ptr))
+ if (from_card_up) {
rxdp3->Buffer0_ptr =
pci_map_single(ring->pdev, ba->ba_0,
BUF0_LEN, PCI_DMA_FROMDEVICE);
- else
+ if (pci_dma_mapping_error(rxdp3->Buffer0_ptr))
+ goto pci_map_failed;
+ } else
pci_dma_sync_single_for_device(ring->pdev,
(dma_addr_t) rxdp3->Buffer0_ptr,
BUF0_LEN, PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(rxdp3->Buffer0_ptr))
- goto pci_map_failed;
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
if (ring->rxd_mode == RXD_MODE_3B) {
@@ -2664,21 +2668,22 @@ static int fill_rx_buffers(struct ring_info *ring)
if (pci_dma_mapping_error(rxdp3->Buffer2_ptr))
goto pci_map_failed;
- /* AK: check is wrong */
- if (!rxdp3->Buffer1_ptr)
+ if (from_card_up) {
rxdp3->Buffer1_ptr =
pci_map_single(ring->pdev,
ba->ba_1, BUF1_LEN,
PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(rxdp3->Buffer1_ptr)) {
- pci_unmap_single
- (ring->pdev,
- (dma_addr_t)(unsigned long)
- skb->data,
- ring->mtu + 4,
- PCI_DMA_FROMDEVICE);
- goto pci_map_failed;
+ if (pci_dma_mapping_error
+ (rxdp3->Buffer1_ptr)) {
+ pci_unmap_single
+ (ring->pdev,
+ (dma_addr_t)(unsigned long)
+ skb->data,
+ ring->mtu + 4,
+ PCI_DMA_FROMDEVICE);
+ goto pci_map_failed;
+ }
}
rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
rxdp->Control_2 |= SET_BUFFER2_SIZE_3
@@ -2813,7 +2818,7 @@ static void free_rx_buffers(struct s2io_nic *sp)
static int s2io_chk_rx_buffers(struct ring_info *ring)
{
- if (fill_rx_buffers(ring) == -ENOMEM) {
+ if (fill_rx_buffers(ring, 0) == -ENOMEM) {
DBG_PRINT(INFO_DBG, "%s:Out of memory", ring->dev->name);
DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
}
@@ -2944,7 +2949,7 @@ static void s2io_netpoll(struct net_device *dev)
rx_intr_handler(&mac_control->rings[i], 0);
for (i = 0; i < config->rx_ring_num; i++) {
- if (fill_rx_buffers(&mac_control->rings[i]) == -ENOMEM) {
+ if (fill_rx_buffers(&mac_control->rings[i], 0) == -ENOMEM) {
DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name);
DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n");
break;
@@ -4373,18 +4378,24 @@ static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
/* Nothing much can be done. Get out */
return IRQ_HANDLED;
- writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
+ if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
+ writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
- if (reason & GEN_INTR_TXTRAFFIC)
- writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
+ if (reason & GEN_INTR_TXPIC)
+ s2io_txpic_intr_handle(sp);
- for (i = 0; i < config->tx_fifo_num; i++)
- tx_intr_handler(&fifos[i]);
+ if (reason & GEN_INTR_TXTRAFFIC)
+ writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
- writeq(sp->general_int_mask, &bar0->general_int_mask);
- readl(&bar0->general_int_status);
+ for (i = 0; i < config->tx_fifo_num; i++)
+ tx_intr_handler(&fifos[i]);
- return IRQ_HANDLED;
+ writeq(sp->general_int_mask, &bar0->general_int_mask);
+ readl(&bar0->general_int_status);
+ return IRQ_HANDLED;
+ }
+ /* The interrupt was not raised by us */
+ return IRQ_NONE;
}
static void s2io_txpic_intr_handle(struct s2io_nic *sp)
@@ -7112,6 +7123,9 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
s2io_rem_isr(sp);
+ /* stop the tx queue, indicate link down */
+ s2io_link(sp, LINK_DOWN);
+
/* Check if the device is Quiescent and then Reset the NIC */
while(do_io) {
/* As per the HW requirement we need to replenish the
@@ -7183,7 +7197,7 @@ static int s2io_card_up(struct s2io_nic * sp)
for (i = 0; i < config->rx_ring_num; i++) {
mac_control->rings[i].mtu = dev->mtu;
- ret = fill_rx_buffers(&mac_control->rings[i]);
+ ret = fill_rx_buffers(&mac_control->rings[i], 1);
if (ret) {
DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
dev->name);
@@ -7244,17 +7258,19 @@ static int s2io_card_up(struct s2io_nic * sp)
S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
+ set_bit(__S2IO_STATE_CARD_UP, &sp->state);
+
/* Enable select interrupts */
en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
- if (sp->config.intr_type != INTA)
- en_dis_able_nic_intrs(sp, TX_TRAFFIC_INTR, ENABLE_INTRS);
- else {
+ if (sp->config.intr_type != INTA) {
+ interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
+ en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
+ } else {
interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
interruptible |= TX_PIC_INTR;
en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
}
- set_bit(__S2IO_STATE_CARD_UP, &sp->state);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-27 14:46:28 +0000