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authorLuca Boccassi <luca.boccassi@gmail.com>2018-11-01 11:59:50 +0000
committerLuca Boccassi <luca.boccassi@gmail.com>2018-11-01 12:00:19 +0000
commit8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 (patch)
tree208e3bc33c220854d89d010e3abf720a2e62e546 /drivers/net/enic/base/vnic_dev.c
parentb63264c8342e6a1b6971c79550d2af2024b6a4de (diff)
New upstream version 18.11-rc1upstream/18.11-rc1
Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/enic/base/vnic_dev.c')
-rw-r--r--drivers/net/enic/base/vnic_dev.c105
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;
+}