qlcnic: add eswitch statistics support
Adding eswitch statistics support. User can get
whole eswitch stats or stats of func belong to that eswitch.
Added:
o command to get statistics of eswitch and function.
o sysfs support to export eswitch and func statatistics.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/qlcnic/qlcnic_ctx.c b/drivers/net/qlcnic/qlcnic_ctx.c
index cc5d861..57c9b09 100644
--- a/drivers/net/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/qlcnic/qlcnic_ctx.c
@@ -983,3 +983,128 @@
return err;
}
+
+int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
+ const u8 rx_tx, struct __qlcnic_esw_statistics *esw_stats) {
+
+ size_t stats_size = sizeof(struct __qlcnic_esw_statistics);
+ dma_addr_t stats_dma_t;
+ void *stats_addr;
+ u32 arg1;
+ int err;
+
+ if (esw_stats == NULL)
+ return -ENOMEM;
+
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC &&
+ func != adapter->ahw.pci_func) {
+ dev_err(&adapter->pdev->dev,
+ "Not privilege to query stats for func=%d", func);
+ return -EIO;
+ }
+
+ stats_addr = pci_alloc_consistent(adapter->pdev, stats_size,
+ &stats_dma_t);
+ if (!stats_addr) {
+ dev_err(&adapter->pdev->dev, "Unable to allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(stats_addr, 0, stats_size);
+
+ arg1 = func | QLCNIC_STATS_VERSION << 8 | QLCNIC_STATS_PORT << 12;
+ arg1 |= rx_tx << 15 | stats_size << 16;
+
+ err = qlcnic_issue_cmd(adapter,
+ adapter->ahw.pci_func,
+ adapter->fw_hal_version,
+ arg1,
+ MSD(stats_dma_t),
+ LSD(stats_dma_t),
+ QLCNIC_CDRP_CMD_GET_ESWITCH_STATS);
+
+ if (!err)
+ memcpy(esw_stats, stats_addr, stats_size);
+
+ pci_free_consistent(adapter->pdev, stats_size, stats_addr,
+ stats_dma_t);
+ return err;
+}
+
+int qlcnic_get_eswitch_stats(struct qlcnic_adapter *adapter, const u8 eswitch,
+ const u8 rx_tx, struct __qlcnic_esw_statistics *esw_stats) {
+
+ struct __qlcnic_esw_statistics port_stats;
+ u8 i;
+ int ret = -EIO;
+
+ if (esw_stats == NULL)
+ return -ENOMEM;
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC)
+ return -EIO;
+ if (adapter->npars == NULL)
+ return -EIO;
+
+ memset(esw_stats, 0, sizeof(struct __qlcnic_esw_statistics));
+ esw_stats->context_id = eswitch;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ if (adapter->npars[i].phy_port != eswitch)
+ continue;
+
+ memset(&port_stats, 0, sizeof(struct __qlcnic_esw_statistics));
+ if (qlcnic_get_port_stats(adapter, i, rx_tx, &port_stats))
+ continue;
+
+ esw_stats->size = port_stats.size;
+ esw_stats->version = port_stats.version;
+ esw_stats->unicast_frames += port_stats.unicast_frames;
+ esw_stats->multicast_frames += port_stats.multicast_frames;
+ esw_stats->broadcast_frames += port_stats.broadcast_frames;
+ esw_stats->dropped_frames += port_stats.dropped_frames;
+ esw_stats->errors += port_stats.errors;
+ esw_stats->local_frames += port_stats.local_frames;
+ esw_stats->numbytes += port_stats.numbytes;
+
+ ret = 0;
+ }
+ return ret;
+}
+
+int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, const u8 func_esw,
+ const u8 port, const u8 rx_tx)
+{
+
+ u32 arg1;
+
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC)
+ return -EIO;
+
+ if (func_esw == QLCNIC_STATS_PORT) {
+ if (port >= QLCNIC_MAX_PCI_FUNC)
+ goto err_ret;
+ } else if (func_esw == QLCNIC_STATS_ESWITCH) {
+ if (port >= QLCNIC_NIU_MAX_XG_PORTS)
+ goto err_ret;
+ } else {
+ goto err_ret;
+ }
+
+ if (rx_tx > QLCNIC_QUERY_TX_COUNTER)
+ goto err_ret;
+
+ arg1 = port | QLCNIC_STATS_VERSION << 8 | func_esw << 12;
+ arg1 |= BIT_14 | rx_tx << 15;
+
+ return qlcnic_issue_cmd(adapter,
+ adapter->ahw.pci_func,
+ adapter->fw_hal_version,
+ arg1,
+ 0,
+ 0,
+ QLCNIC_CDRP_CMD_GET_ESWITCH_STATS);
+
+err_ret:
+ dev_err(&adapter->pdev->dev, "Invalid argument func_esw=%d port=%d"
+ "rx_ctx=%d\n", func_esw, port, rx_tx);
+ return -EIO;
+}