diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/enh_desc.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/enh_desc.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c index 1a2fce988548..1abd80ed09f3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c @@ -302,7 +302,8 @@ static void enh_desc_release_tx_desc(struct dma_desc *p, int mode) } static void enh_desc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, - int csum_flag, int mode) + bool csum_flag, int mode, bool tx_own, + bool ls_ic) { unsigned int tdes0 = p->des0; @@ -316,6 +317,19 @@ static void enh_desc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, else tdes0 &= ~(TX_CIC_FULL << ETDES0_CHECKSUM_INSERTION_SHIFT); + if (tx_own) + tdes0 |= ETDES0_OWN; + + if (is_fs & tx_own) + /* When the own bit, for the first frame, has to be set, all + * descriptors for the same frame has to be set before, to + * avoid race condition. + */ + wmb(); + + if (ls_ic) + tdes0 |= ETDES0_LAST_SEGMENT | ETDES0_INTERRUPT; + p->des0 = tdes0; if (mode == STMMAC_CHAIN_MODE) @@ -329,11 +343,6 @@ static void enh_desc_clear_tx_ic(struct dma_desc *p) p->des0 &= ~ETDES0_INTERRUPT; } -static void enh_desc_close_tx_desc(struct dma_desc *p) -{ - p->des0 |= ETDES0_LAST_SEGMENT | ETDES0_INTERRUPT; -} - static int enh_desc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type) { unsigned int csum = 0; @@ -403,7 +412,6 @@ const struct stmmac_desc_ops enh_desc_ops = { .release_tx_desc = enh_desc_release_tx_desc, .prepare_tx_desc = enh_desc_prepare_tx_desc, .clear_tx_ic = enh_desc_clear_tx_ic, - .close_tx_desc = enh_desc_close_tx_desc, .get_tx_ls = enh_desc_get_tx_ls, .set_tx_owner = enh_desc_set_tx_owner, .set_rx_owner = enh_desc_set_rx_owner, |