| Message ID | 1251310606.27345.11.camel@achroite |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Ben Hutchings <bhutchings@solarflare.com> Date: Wed, 26 Aug 2009 19:16:46 +0100 > falcon_reset_xaui() waits for XGXS reset to complete, but the XAUI > serdes reset may take longer. It needs to check both reset active > bits. > > Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h index 375e2a5..2d22611 100644 --- a/drivers/net/sfc/falcon_hwdefs.h +++ b/drivers/net/sfc/falcon_hwdefs.h @@ -700,6 +700,8 @@ /* XGXS/XAUI powerdown/reset register */ #define XX_PWR_RST_REG 0x1300 +#define XX_SD_RST_ACT_LBN 16 +#define XX_SD_RST_ACT_WIDTH 1 #define XX_PWRDND_EN_LBN 15 #define XX_PWRDND_EN_WIDTH 1 #define XX_PWRDNC_EN_LBN 14 diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c index 2b3269c..bec52ca 100644 --- a/drivers/net/sfc/falcon_xmac.c +++ b/drivers/net/sfc/falcon_xmac.c @@ -64,13 +64,15 @@ int falcon_reset_xaui(struct efx_nic *efx) efx_oword_t reg; int count; + /* Start reset sequence */ EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1); falcon_write(efx, ®, XX_PWR_RST_REG); - /* Give some time for the link to establish */ - for (count = 0; count < 1000; count++) { /* wait upto 10ms */ + /* Wait up to 10 ms for completion, then reinitialise */ + for (count = 0; count < 1000; count++) { falcon_read(efx, ®, XX_PWR_RST_REG); - if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0) { + if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0 && + EFX_OWORD_FIELD(reg, XX_SD_RST_ACT) == 0) { falcon_setup_xaui(efx); return 0; }
falcon_reset_xaui() waits for XGXS reset to complete, but the XAUI serdes reset may take longer. It needs to check both reset active bits. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> --- drivers/net/sfc/falcon_hwdefs.h | 2 ++ drivers/net/sfc/falcon_xmac.c | 8 +++++--- 2 files changed, 7 insertions(+), 3 deletions(-)