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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.c128
1 files changed, 8 insertions, 120 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index dcbe01b0ca0d..157fd932e951 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 "2.0.26.20"
+#define DRV_VERSION "2.0.26.22"
/* S2io Driver name & version. */
static char s2io_driver_name[] = "Neterion";
@@ -117,20 +117,6 @@ static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
-#define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status))
-#define PANIC 1
-#define LOW 2
-static inline int rx_buffer_level(struct s2io_nic * sp, int rxb_size, int ring)
-{
- struct mac_info *mac_control;
-
- mac_control = &sp->mac_control;
- if (rxb_size <= rxd_count[sp->rxd_mode])
- return PANIC;
- else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16)
- return LOW;
- return 0;
-}
static inline int is_s2io_card_up(const struct s2io_nic * sp)
{
@@ -2458,7 +2444,7 @@ static void free_tx_buffers(struct s2io_nic *nic)
for (i = 0; i < config->tx_fifo_num; i++) {
unsigned long flags;
spin_lock_irqsave(&mac_control->fifos[i].tx_lock, flags);
- for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) {
+ for (j = 0; j < config->tx_cfg[i].fifo_len; j++) {
txdp = (struct TxD *) \
mac_control->fifos[i].list_info[j].list_virt_addr;
skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
@@ -2544,7 +2530,6 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
struct config_param *config;
u64 tmp;
struct buffAdd *ba;
- unsigned long flags;
struct RxD_t *first_rxdp = NULL;
u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
struct RxD1 *rxdp1;
@@ -2592,15 +2577,7 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
dev->name, rxdp);
}
- if(!napi) {
- spin_lock_irqsave(&nic->put_lock, flags);
- mac_control->rings[ring_no].put_pos =
- (block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
- spin_unlock_irqrestore(&nic->put_lock, flags);
- } else {
- mac_control->rings[ring_no].put_pos =
- (block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
- }
+
if ((rxdp->Control_1 & RXD_OWN_XENA) &&
((nic->rxd_mode == RXD_MODE_3B) &&
(rxdp->Control_2 & s2BIT(0)))) {
@@ -2978,7 +2955,7 @@ static void rx_intr_handler(struct ring_info *ring_data)
{
struct s2io_nic *nic = ring_data->nic;
struct net_device *dev = (struct net_device *) nic->dev;
- int get_block, put_block, put_offset;
+ int get_block, put_block;
struct rx_curr_get_info get_info, put_info;
struct RxD_t *rxdp;
struct sk_buff *skb;
@@ -2987,19 +2964,11 @@ static void rx_intr_handler(struct ring_info *ring_data)
struct RxD1* rxdp1;
struct RxD3* rxdp3;
- spin_lock(&nic->rx_lock);
-
get_info = ring_data->rx_curr_get_info;
get_block = get_info.block_index;
memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
put_block = put_info.block_index;
rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
- if (!napi) {
- spin_lock(&nic->put_lock);
- put_offset = ring_data->put_pos;
- spin_unlock(&nic->put_lock);
- } else
- put_offset = ring_data->put_pos;
while (RXD_IS_UP2DT(rxdp)) {
/*
@@ -3016,7 +2985,6 @@ static void rx_intr_handler(struct ring_info *ring_data)
DBG_PRINT(ERR_DBG, "%s: The skb is ",
dev->name);
DBG_PRINT(ERR_DBG, "Null in Rx Intr\n");
- spin_unlock(&nic->rx_lock);
return;
}
if (nic->rxd_mode == RXD_MODE_1) {
@@ -3072,8 +3040,6 @@ static void rx_intr_handler(struct ring_info *ring_data)
}
}
}
-
- spin_unlock(&nic->rx_lock);
}
/**
@@ -4105,7 +4071,6 @@ static int s2io_close(struct net_device *dev)
do_s2io_delete_unicast_mc(sp, tmp64);
}
- /* Reset card, kill tasklet and free Tx and Rx buffers. */
s2io_card_down(sp);
return 0;
@@ -4370,29 +4335,9 @@ s2io_alarm_handle(unsigned long data)
static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n)
{
- int rxb_size, level;
-
- if (!sp->lro) {
- rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
- level = rx_buffer_level(sp, rxb_size, rng_n);
-
- if ((level == PANIC) && (!TASKLET_IN_USE)) {
- int ret;
- DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
- DBG_PRINT(INTR_DBG, "PANIC levels\n");
- if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
- DBG_PRINT(INFO_DBG, "Out of memory in %s",
- __FUNCTION__);
- clear_bit(0, (&sp->tasklet_status));
- return -1;
- }
- clear_bit(0, (&sp->tasklet_status));
- } else if (level == LOW)
- tasklet_schedule(&sp->task);
-
- } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
- DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name);
- DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
+ if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
+ DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name);
+ DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
}
return 0;
}
@@ -6770,49 +6715,6 @@ static int s2io_change_mtu(struct net_device *dev, int new_mtu)
}
/**
- * s2io_tasklet - Bottom half of the ISR.
- * @dev_adr : address of the device structure in dma_addr_t format.
- * Description:
- * This is the tasklet or the bottom half of the ISR. This is
- * an extension of the ISR which is scheduled by the scheduler to be run
- * when the load on the CPU is low. All low priority tasks of the ISR can
- * be pushed into the tasklet. For now the tasklet is used only to
- * replenish the Rx buffers in the Rx buffer descriptors.
- * Return value:
- * void.
- */
-
-static void s2io_tasklet(unsigned long dev_addr)
-{
- struct net_device *dev = (struct net_device *) dev_addr;
- struct s2io_nic *sp = dev->priv;
- int i, ret;
- struct mac_info *mac_control;
- struct config_param *config;
-
- mac_control = &sp->mac_control;
- config = &sp->config;
-
- if (!TASKLET_IN_USE) {
- for (i = 0; i < config->rx_ring_num; i++) {
- ret = fill_rx_buffers(sp, i);
- if (ret == -ENOMEM) {
- DBG_PRINT(INFO_DBG, "%s: Out of ",
- dev->name);
- DBG_PRINT(INFO_DBG, "memory in tasklet\n");
- break;
- } else if (ret == -EFILL) {
- DBG_PRINT(INFO_DBG,
- "%s: Rx Ring %d is full\n",
- dev->name, i);
- break;
- }
- }
- clear_bit(0, (&sp->tasklet_status));
- }
-}
-
-/**
* s2io_set_link - Set the LInk status
* @data: long pointer to device private structue
* Description: Sets the link status for the adapter
@@ -7161,7 +7063,6 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
{
int cnt = 0;
struct XENA_dev_config __iomem *bar0 = sp->bar0;
- unsigned long flags;
register u64 val64 = 0;
struct config_param *config;
config = &sp->config;
@@ -7186,9 +7087,6 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
s2io_rem_isr(sp);
- /* Kill tasklet. */
- tasklet_kill(&sp->task);
-
/* Check if the device is Quiescent and then Reset the NIC */
while(do_io) {
/* As per the HW requirement we need to replenish the
@@ -7223,9 +7121,7 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
free_tx_buffers(sp);
/* Free all Rx buffers */
- spin_lock_irqsave(&sp->rx_lock, flags);
free_rx_buffers(sp);
- spin_unlock_irqrestore(&sp->rx_lock, flags);
clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
}
@@ -7314,9 +7210,6 @@ static int s2io_card_up(struct s2io_nic * sp)
S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
- /* Enable tasklet for the device */
- tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev);
-
/* Enable select interrupts */
en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
if (sp->config.intr_type != INTA)
@@ -8119,20 +8012,15 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
s2io_reset(sp);
/*
- * Initialize the tasklet status and link state flags
+ * Initialize link state flags
* and the card state parameter
*/
- sp->tasklet_status = 0;
sp->state = 0;
/* Initialize spinlocks */
for (i = 0; i < sp->config.tx_fifo_num; i++)
spin_lock_init(&mac_control->fifos[i].tx_lock);
- if (!napi)
- spin_lock_init(&sp->put_lock);
- spin_lock_init(&sp->rx_lock);
-
/*
* SXE-002: Configure link and activity LED to init state
* on driver load.