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head/sys/dev/e1000/if_igb.c
| Show First 20 Lines • Show All 2,454 Lines • ▼ Show 20 Lines | |||||
| **********************************************************************/ | **********************************************************************/ | ||||
| static int | static int | ||||
| igb_allocate_msix(struct adapter *adapter) | igb_allocate_msix(struct adapter *adapter) | ||||
| { | { | ||||
| device_t dev = adapter->dev; | device_t dev = adapter->dev; | ||||
| struct igb_queue *que = adapter->queues; | struct igb_queue *que = adapter->queues; | ||||
| int error, rid, vector = 0; | int error, rid, vector = 0; | ||||
| int cpu_id = 0; | int cpu_id = 0; | ||||
| #ifdef RSS | |||||
| cpuset_t cpu_mask; | |||||
| #endif | |||||
| /* Be sure to start with all interrupts disabled */ | /* Be sure to start with all interrupts disabled */ | ||||
| E1000_WRITE_REG(&adapter->hw, E1000_IMC, ~0); | E1000_WRITE_REG(&adapter->hw, E1000_IMC, ~0); | ||||
| E1000_WRITE_FLUSH(&adapter->hw); | E1000_WRITE_FLUSH(&adapter->hw); | ||||
| #ifdef RSS | #ifdef RSS | ||||
| /* | /* | ||||
| * If we're doing RSS, the number of queues needs to | * If we're doing RSS, the number of queues needs to | ||||
| ▲ Show 20 Lines • Show All 90 Lines • ▼ Show 20 Lines | if (adapter->num_queues > 1) { | ||||
| /* | /* | ||||
| * Only pin the taskqueue thread to a CPU if | * Only pin the taskqueue thread to a CPU if | ||||
| * RSS is in use. | * RSS is in use. | ||||
| * | * | ||||
| * This again just happens to match the default RSS | * This again just happens to match the default RSS | ||||
| * round-robin bucket -> queue -> CPU allocation. | * round-robin bucket -> queue -> CPU allocation. | ||||
| */ | */ | ||||
| #ifdef RSS | #ifdef RSS | ||||
| taskqueue_start_threads_pinned(&que->tq, 1, PI_NET, | CPU_ZERO(&cpu_mask); | ||||
| cpu_id, | CPU_SET(cpu_id, &cpu_mask); | ||||
| taskqueue_start_threads_cpuset(&que->tq, 1, PI_NET, | |||||
| &cpu_mask, | |||||
| "%s que (bucket %d)", | "%s que (bucket %d)", | ||||
| device_get_nameunit(adapter->dev), | device_get_nameunit(adapter->dev), | ||||
| cpu_id); | cpu_id); | ||||
| #else | #else | ||||
| taskqueue_start_threads(&que->tq, 1, PI_NET, | taskqueue_start_threads(&que->tq, 1, PI_NET, | ||||
| "%s que (qid %d)", | "%s que (qid %d)", | ||||
| device_get_nameunit(adapter->dev), | device_get_nameunit(adapter->dev), | ||||
| cpu_id); | cpu_id); | ||||
| ▲ Show 20 Lines • Show All 3,804 Lines • Show Last 20 Lines | |||||