diff options
| author |   Quan Nguyen <qnguyen@apm.com> | 2017-05-10 13:45:05 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-05-16 11:41:09 -0400 |
| commit | 2d07d8e4f0536e82d5c194239ed0eaa0f2c47ab1 (patch) | |
| tree | b7da5b6bf32d1995586afdc4cd2f55b27c2bdad0 /drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | |
| parent | drivers: net: xgene: Remove unused macros (diff) | |
| download | linux-dev-2d07d8e4f0536e82d5c194239ed0eaa0f2c47ab1.tar.xz linux-dev-2d07d8e4f0536e82d5c194239ed0eaa0f2c47ab1.zip | |
drivers: net: xgene: Extend ethtool statistics
This patch adds extended ethtool statistics support.
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c index 02df5776e942..9e891939fcf8 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c @@ -359,6 +359,35 @@ u32 xgene_enet_rd_mac(struct xgene_enet_pdata *pdata, u32 rd_addr) return rd_data; } +u32 xgene_enet_rd_stat(struct xgene_enet_pdata *pdata, u32 rd_addr) +{ + void __iomem *addr, *rd, *cmd, *cmd_done; + u32 done, rd_data; + u8 wait = 10; + + addr = pdata->mcx_stats_addr + STAT_ADDR_REG_OFFSET; + rd = pdata->mcx_stats_addr + STAT_READ_REG_OFFSET; + cmd = pdata->mcx_stats_addr + STAT_COMMAND_REG_OFFSET; + cmd_done = pdata->mcx_stats_addr + STAT_COMMAND_DONE_REG_OFFSET; + + spin_lock(&pdata->stats_lock); + iowrite32(rd_addr, addr); + iowrite32(XGENE_ENET_RD_CMD, cmd); + + while (!(done = ioread32(cmd_done)) && wait--) + udelay(1); + + if (!done) + netdev_err(pdata->ndev, "mac stats read failed, addr: %04x\n", + rd_addr); + + rd_data = ioread32(rd); + iowrite32(0, cmd); + spin_unlock(&pdata->stats_lock); + + return rd_data; +} + static void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata) { u32 addr0, addr1; |