diff options
| author | Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> | 2016-08-31 21:03:28 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-01 00:12:48 +0300 |
| commit | 5b07aee11227fa4ccbf9b084e4fb44f655b135c0 (patch) | |
| tree | 3c309c096fbee51200450eb702d525eb74e80c98 /drivers/net/ethernet/cavium/liquidio/octeon_device.c | |
| parent | 1b7c55c4538bac0eb850359c955f452a8b56c192 (diff) | |
| download | linux-5b07aee11227fa4ccbf9b084e4fb44f655b135c0.tar.xz | |
liquidio: MSIX support for CN23XX
This patch adds support msix interrupt for cn23xx device.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/octeon_device.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_device.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c index 120b78e8bc01..52527638d413 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c @@ -746,6 +746,45 @@ struct octeon_device *octeon_allocate_device(u32 pci_id, return oct; } +int +octeon_allocate_ioq_vector(struct octeon_device *oct) +{ + int i, num_ioqs = 0; + struct octeon_ioq_vector *ioq_vector; + int cpu_num; + int size; + + if (OCTEON_CN23XX_PF(oct)) + num_ioqs = oct->sriov_info.num_pf_rings; + size = sizeof(struct octeon_ioq_vector) * num_ioqs; + + oct->ioq_vector = vmalloc(size); + if (!oct->ioq_vector) + return 1; + memset(oct->ioq_vector, 0, size); + for (i = 0; i < num_ioqs; i++) { + ioq_vector = &oct->ioq_vector[i]; + ioq_vector->oct_dev = oct; + ioq_vector->iq_index = i; + ioq_vector->droq_index = i; + + cpu_num = i % num_online_cpus(); + cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask); + + if (oct->chip_id == OCTEON_CN23XX_PF_VID) + ioq_vector->ioq_num = i + oct->sriov_info.pf_srn; + else + ioq_vector->ioq_num = i; + } + return 0; +} + +void +octeon_free_ioq_vector(struct octeon_device *oct) +{ + vfree(oct->ioq_vector); +} + /* this function is only for setting up the first queue */ int octeon_setup_instr_queues(struct octeon_device *oct) { |