diff options
| author |   Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2016-04-01 09:07:14 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-04-01 14:38:58 -0400 |
| commit | a00e3ab64be2e482bd25fe30bdc9bfa6e2b0cf1c (patch) | |
| tree | 2c28bf43b65edfc75c7ff4f41a621c0b45389040 /drivers/net/ethernet/stmicro/stmmac | |
| parent | net: mvneta: use cache_line_size() to get cacheline size (diff) | |
| download | linux-dev-a00e3ab64be2e482bd25fe30bdc9bfa6e2b0cf1c.tar.xz linux-dev-a00e3ab64be2e482bd25fe30bdc9bfa6e2b0cf1c.zip | |
stmmac: fix TX normal DESC
This patch fixs a regression raised when test on chips that use
the normal descriptor layout. In fact, no len bits were set for
the TDES1 and no OWN bit inside the TDES0.
Signed-off-by: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Cc: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/norm_desc.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c index e13228f115f0..011386f6f24d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c @@ -199,11 +199,6 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, { unsigned int tdes1 = p->des1; - if (mode == STMMAC_CHAIN_MODE) - norm_set_tx_desc_len_on_chain(p, len); - else - norm_set_tx_desc_len_on_ring(p, len); - if (is_fs) tdes1 |= TDES1_FIRST_SEGMENT; else @@ -217,10 +212,15 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, if (ls) tdes1 |= TDES1_LAST_SEGMENT; - if (tx_own) - tdes1 |= TDES0_OWN; - p->des1 = tdes1; + + if (mode == STMMAC_CHAIN_MODE) + norm_set_tx_desc_len_on_chain(p, len); + else + norm_set_tx_desc_len_on_ring(p, len); + + if (tx_own) + p->des0 |= TDES0_OWN; } static void ndesc_set_tx_ic(struct dma_desc *p) |