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authorBen Hutchings <bhutchings@solarflare.com>2009-11-25 11:08:41 -0500
committerDavid S. Miller <davem@davemloft.net>2009-11-26 18:59:00 -0500
commit80cb9a0f7f381e1c0e9f6dabec6e67db0dd3a0d9 (patch)
treef64ca5e6a4d30831109163bdfaffa3e3f8ab7a93 /drivers/net/sfc/falcon.c
parent46e1ac0f42c7ff20a7e47c172e4835273b0e6899 (diff)
sfc: Treat all MAC registers as 128-bit
Although all the defined fields in these registers are within 32 bits, they are architecturally defined as 128-bit like most other Falcon registers. In particular, we must use efx_reado() to ensure proper locking when reading MD_STAT_REG. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/falcon.c')
-rw-r--r--drivers/net/sfc/falcon.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 7b19686218a5..f97ef3e0572f 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -2042,18 +2042,18 @@ int falcon_dma_stats(struct efx_nic *efx, unsigned int done_offset)
2042/* Wait for GMII access to complete */ 2042/* Wait for GMII access to complete */
2043static int falcon_gmii_wait(struct efx_nic *efx) 2043static int falcon_gmii_wait(struct efx_nic *efx)
2044{ 2044{
2045 efx_dword_t md_stat; 2045 efx_oword_t md_stat;
2046 int count; 2046 int count;
2047 2047
2048 /* wait upto 50ms - taken max from datasheet */ 2048 /* wait upto 50ms - taken max from datasheet */
2049 for (count = 0; count < 5000; count++) { 2049 for (count = 0; count < 5000; count++) {
2050 efx_readd(efx, &md_stat, FR_AB_MD_STAT); 2050 efx_reado(efx, &md_stat, FR_AB_MD_STAT);
2051 if (EFX_DWORD_FIELD(md_stat, FRF_AB_MD_BSY) == 0) { 2051 if (EFX_OWORD_FIELD(md_stat, FRF_AB_MD_BSY) == 0) {
2052 if (EFX_DWORD_FIELD(md_stat, FRF_AB_MD_LNFL) != 0 || 2052 if (EFX_OWORD_FIELD(md_stat, FRF_AB_MD_LNFL) != 0 ||
2053 EFX_DWORD_FIELD(md_stat, FRF_AB_MD_BSERR) != 0) { 2053 EFX_OWORD_FIELD(md_stat, FRF_AB_MD_BSERR) != 0) {
2054 EFX_ERR(efx, "error from GMII access " 2054 EFX_ERR(efx, "error from GMII access "
2055 EFX_DWORD_FMT"\n", 2055 EFX_OWORD_FMT"\n",
2056 EFX_DWORD_VAL(md_stat)); 2056 EFX_OWORD_VAL(md_stat));
2057 return -EIO; 2057 return -EIO;
2058 } 2058 }
2059 return 0; 2059 return 0;