diff options
| author | Ganesh Goudar <ganeshgr@chelsio.com> | 2017-05-31 16:40:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-02 21:07:14 +0300 |
| commit | a97051f4553551d13e586ab3cb6ae13093a44a81 (patch) | |
| tree | bc54f58665f1b75e60939c6289ead5b6e02b26a3 /drivers/net/ethernet/chelsio | |
| parent | 91a09e0c77d5462706c3f44178a7eb3dd0e9804e (diff) | |
| download | linux-a97051f4553551d13e586ab3cb6ae13093a44a81.tar.xz | |
cxgb4: fix incorrect cim_la output for T6
take care of UpDbgLaRdPtr[0-3] restriction for T6.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 9160c882fbfc..822c560fb310 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -8312,7 +8312,16 @@ int t4_cim_read_la(struct adapter *adap, u32 *la_buf, unsigned int *wrptr) ret = t4_cim_read(adap, UP_UP_DBG_LA_DATA_A, 1, &la_buf[i]); if (ret) break; - idx = (idx + 1) & UPDBGLARDPTR_M; + + /* Bits 0-3 of UpDbgLaRdPtr can be between 0000 to 1001 to + * identify the 32-bit portion of the full 312-bit data + */ + if (is_t6(adap->params.chip) && (idx & 0xf) >= 9) + idx = (idx & 0xff0) + 0x10; + else + idx++; + /* address can't exceed 0xfff */ + idx &= UPDBGLARDPTR_M; } restart: if (cfg & UPDBGLAEN_F) { |