aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/s2io.c93
-rw-r--r--drivers/net/s2io.h3
2 files changed, 4 insertions, 92 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 81fd7abc27e4..4344e6ed9041 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -117,20 +117,6 @@ static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
117 117
118#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \ 118#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
119 ADAPTER_STATUS_RMAC_LOCAL_FAULT))) 119 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
120#define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status))
121#define PANIC 1
122#define LOW 2
123static inline int rx_buffer_level(struct s2io_nic * sp, int rxb_size, int ring)
124{
125 struct mac_info *mac_control;
126
127 mac_control = &sp->mac_control;
128 if (rxb_size <= rxd_count[sp->rxd_mode])
129 return PANIC;
130 else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16)
131 return LOW;
132 return 0;
133}
134 120
135static inline int is_s2io_card_up(const struct s2io_nic * sp) 121static inline int is_s2io_card_up(const struct s2io_nic * sp)
136{ 122{
@@ -4105,7 +4091,6 @@ static int s2io_close(struct net_device *dev)
4105 do_s2io_delete_unicast_mc(sp, tmp64); 4091 do_s2io_delete_unicast_mc(sp, tmp64);
4106 } 4092 }
4107 4093
4108 /* Reset card, kill tasklet and free Tx and Rx buffers. */
4109 s2io_card_down(sp); 4094 s2io_card_down(sp);
4110 4095
4111 return 0; 4096 return 0;
@@ -4370,29 +4355,9 @@ s2io_alarm_handle(unsigned long data)
4370 4355
4371static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) 4356static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n)
4372{ 4357{
4373 int rxb_size, level; 4358 if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
4374 4359 DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name);
4375 if (!sp->lro) { 4360 DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
4376 rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
4377 level = rx_buffer_level(sp, rxb_size, rng_n);
4378
4379 if ((level == PANIC) && (!TASKLET_IN_USE)) {
4380 int ret;
4381 DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
4382 DBG_PRINT(INTR_DBG, "PANIC levels\n");
4383 if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
4384 DBG_PRINT(INFO_DBG, "Out of memory in %s",
4385 __FUNCTION__);
4386 clear_bit(0, (&sp->tasklet_status));
4387 return -1;
4388 }
4389 clear_bit(0, (&sp->tasklet_status));
4390 } else if (level == LOW)
4391 tasklet_schedule(&sp->task);
4392
4393 } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
4394 DBG_PRINT(INFO_DBG, "%s:Out of memory", sp->dev->name);
4395 DBG_PRINT(INFO_DBG, " in Rx Intr!!\n");
4396 } 4361 }
4397 return 0; 4362 return 0;
4398} 4363}
@@ -6770,49 +6735,6 @@ static int s2io_change_mtu(struct net_device *dev, int new_mtu)
6770} 6735}
6771 6736
6772/** 6737/**
6773 * s2io_tasklet - Bottom half of the ISR.
6774 * @dev_adr : address of the device structure in dma_addr_t format.
6775 * Description:
6776 * This is the tasklet or the bottom half of the ISR. This is
6777 * an extension of the ISR which is scheduled by the scheduler to be run
6778 * when the load on the CPU is low. All low priority tasks of the ISR can
6779 * be pushed into the tasklet. For now the tasklet is used only to
6780 * replenish the Rx buffers in the Rx buffer descriptors.
6781 * Return value:
6782 * void.
6783 */
6784
6785static void s2io_tasklet(unsigned long dev_addr)
6786{
6787 struct net_device *dev = (struct net_device *) dev_addr;
6788 struct s2io_nic *sp = dev->priv;
6789 int i, ret;
6790 struct mac_info *mac_control;
6791 struct config_param *config;
6792
6793 mac_control = &sp->mac_control;
6794 config = &sp->config;
6795
6796 if (!TASKLET_IN_USE) {
6797 for (i = 0; i < config->rx_ring_num; i++) {
6798 ret = fill_rx_buffers(sp, i);
6799 if (ret == -ENOMEM) {
6800 DBG_PRINT(INFO_DBG, "%s: Out of ",
6801 dev->name);
6802 DBG_PRINT(INFO_DBG, "memory in tasklet\n");
6803 break;
6804 } else if (ret == -EFILL) {
6805 DBG_PRINT(INFO_DBG,
6806 "%s: Rx Ring %d is full\n",
6807 dev->name, i);
6808 break;
6809 }
6810 }
6811 clear_bit(0, (&sp->tasklet_status));
6812 }
6813}
6814
6815/**
6816 * s2io_set_link - Set the LInk status 6738 * s2io_set_link - Set the LInk status
6817 * @data: long pointer to device private structue 6739 * @data: long pointer to device private structue
6818 * Description: Sets the link status for the adapter 6740 * Description: Sets the link status for the adapter
@@ -7186,9 +7108,6 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
7186 7108
7187 s2io_rem_isr(sp); 7109 s2io_rem_isr(sp);
7188 7110
7189 /* Kill tasklet. */
7190 tasklet_kill(&sp->task);
7191
7192 /* Check if the device is Quiescent and then Reset the NIC */ 7111 /* Check if the device is Quiescent and then Reset the NIC */
7193 while(do_io) { 7112 while(do_io) {
7194 /* As per the HW requirement we need to replenish the 7113 /* As per the HW requirement we need to replenish the
@@ -7314,9 +7233,6 @@ static int s2io_card_up(struct s2io_nic * sp)
7314 7233
7315 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); 7234 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7316 7235
7317 /* Enable tasklet for the device */
7318 tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev);
7319
7320 /* Enable select interrupts */ 7236 /* Enable select interrupts */
7321 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS); 7237 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
7322 if (sp->config.intr_type != INTA) 7238 if (sp->config.intr_type != INTA)
@@ -8119,10 +8035,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
8119 s2io_reset(sp); 8035 s2io_reset(sp);
8120 8036
8121 /* 8037 /*
8122 * Initialize the tasklet status and link state flags 8038 * Initialize link state flags
8123 * and the card state parameter 8039 * and the card state parameter
8124 */ 8040 */
8125 sp->tasklet_status = 0;
8126 sp->state = 0; 8041 sp->state = 0;
8127 8042
8128 /* Initialize spinlocks */ 8043 /* Initialize spinlocks */
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index e68fdf7e4260..e3136cfd6db2 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -868,8 +868,6 @@ struct s2io_nic {
868 int device_enabled_once; 868 int device_enabled_once;
869 869
870 char name[60]; 870 char name[60];
871 struct tasklet_struct task;
872 volatile unsigned long tasklet_status;
873 871
874 /* Timer that handles I/O errors/exceptions */ 872 /* Timer that handles I/O errors/exceptions */
875 struct timer_list alarm_timer; 873 struct timer_list alarm_timer;
@@ -1094,7 +1092,6 @@ static void s2io_handle_errors(void * dev_id);
1094static int s2io_starter(void); 1092static int s2io_starter(void);
1095static void s2io_closer(void); 1093static void s2io_closer(void);
1096static void s2io_tx_watchdog(struct net_device *dev); 1094static void s2io_tx_watchdog(struct net_device *dev);
1097static void s2io_tasklet(unsigned long dev_addr);
1098static void s2io_set_multicast(struct net_device *dev); 1095static void s2io_set_multicast(struct net_device *dev);
1099static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp); 1096static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
1100static void s2io_link(struct s2io_nic * sp, int link); 1097static void s2io_link(struct s2io_nic * sp, int link);