diff options
Diffstat (limited to 'drivers/net/enic/base/vnic_dev.c')
| -rw-r--r-- | drivers/net/enic/base/vnic_dev.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c index 16e8814a..fd303fec 100644 --- a/drivers/net/enic/base/vnic_dev.c +++ b/drivers/net/enic/base/vnic_dev.c @@ -57,6 +57,9 @@ struct vnic_dev { void (*free_consistent)(void *priv, size_t size, void *vaddr, dma_addr_t dma_handle); + struct vnic_counter_counts *flow_counters; + dma_addr_t flow_counters_pa; + u8 flow_counters_dma_active; }; #define VNIC_MAX_RES_HDR_SIZE \ @@ -64,6 +67,8 @@ struct vnic_dev { sizeof(struct vnic_resource) * RES_TYPE_MAX) #define VNIC_RES_STRIDE 128 +#define VNIC_MAX_FLOW_COUNTERS 2048 + void *vnic_dev_priv(struct vnic_dev *vdev) { return vdev->priv; @@ -611,6 +616,35 @@ int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); } +/* + * Configure counter DMA + */ +int vnic_dev_counter_dma_cfg(struct vnic_dev *vdev, u32 period, + u32 num_counters) +{ + u64 args[3]; + int wait = 1000; + int err; + + if (num_counters > VNIC_MAX_FLOW_COUNTERS) + return -ENOMEM; + if (period > 0 && (period < VNIC_COUNTER_DMA_MIN_PERIOD || + num_counters == 0)) + return -EINVAL; + + args[0] = num_counters; + args[1] = vdev->flow_counters_pa; + args[2] = period; + err = vnic_dev_cmd_args(vdev, CMD_COUNTER_DMA_CONFIG, args, 3, wait); + + /* record if DMAs need to be stopped on close */ + if (!err) + vdev->flow_counters_dma_active = (num_counters != 0 && + period != 0); + + return err; +} + int vnic_dev_close(struct vnic_dev *vdev) { u64 a0 = 0, a1 = 0; @@ -939,6 +973,24 @@ int vnic_dev_alloc_stats_mem(struct vnic_dev *vdev) return vdev->stats == NULL ? -ENOMEM : 0; } +/* + * Initialize for up to VNIC_MAX_FLOW_COUNTERS + */ +int vnic_dev_alloc_counter_mem(struct vnic_dev *vdev) +{ + char name[NAME_MAX]; + static u32 instance; + + snprintf((char *)name, sizeof(name), "vnic_flow_ctrs-%u", instance++); + vdev->flow_counters = vdev->alloc_consistent(vdev->priv, + sizeof(struct vnic_counter_counts) + * VNIC_MAX_FLOW_COUNTERS, + &vdev->flow_counters_pa, + (u8 *)name); + vdev->flow_counters_dma_active = 0; + return vdev->flow_counters == NULL ? -ENOMEM : 0; +} + void vnic_dev_unregister(struct vnic_dev *vdev) { if (vdev) { @@ -951,6 +1003,16 @@ void vnic_dev_unregister(struct vnic_dev *vdev) vdev->free_consistent(vdev->priv, sizeof(struct vnic_stats), vdev->stats, vdev->stats_pa); + if (vdev->flow_counters) { + /* turn off counter DMAs before freeing memory */ + if (vdev->flow_counters_dma_active) + vnic_dev_counter_dma_cfg(vdev, 0, 0); + + vdev->free_consistent(vdev->priv, + sizeof(struct vnic_counter_counts) + * VNIC_MAX_FLOW_COUNTERS, + vdev->flow_counters, vdev->flow_counters_pa); + } if (vdev->fw_info) vdev->free_consistent(vdev->priv, sizeof(struct vnic_devcmd_fw_info), @@ -1094,3 +1156,46 @@ int vnic_dev_capable_vxlan(struct vnic_dev *vdev) (a1 & (FEATURE_VXLAN_IPV6 | FEATURE_VXLAN_MULTI_WQ)) == (FEATURE_VXLAN_IPV6 | FEATURE_VXLAN_MULTI_WQ); } + +bool vnic_dev_counter_alloc(struct vnic_dev *vdev, uint32_t *idx) +{ + u64 a0 = 0; + u64 a1 = 0; + int wait = 1000; + + if (vnic_dev_cmd(vdev, CMD_COUNTER_ALLOC, &a0, &a1, wait)) + return false; + *idx = (uint32_t)a0; + return true; +} + +bool vnic_dev_counter_free(struct vnic_dev *vdev, uint32_t idx) +{ + u64 a0 = idx; + u64 a1 = 0; + int wait = 1000; + + return vnic_dev_cmd(vdev, CMD_COUNTER_FREE, &a0, &a1, + wait) == 0; +} + +bool vnic_dev_counter_query(struct vnic_dev *vdev, uint32_t idx, + bool reset, uint64_t *packets, uint64_t *bytes) +{ + u64 a0 = idx; + u64 a1 = reset ? 1 : 0; + int wait = 1000; + + if (reset) { + /* query/reset returns updated counters */ + if (vnic_dev_cmd(vdev, CMD_COUNTER_QUERY, &a0, &a1, wait)) + return false; + *packets = a0; + *bytes = a1; + } else { + /* Get values DMA'd from the adapter */ + *packets = vdev->flow_counters[idx].vcc_packets; + *bytes = vdev->flow_counters[idx].vcc_bytes; + } + return true; +} |