diff options
Diffstat (limited to 'target/linux/rb532/patches-2.6.28/013-korina_fix_handling_tx_chain_tail.patch')
| -rw-r--r-- | target/linux/rb532/patches-2.6.28/013-korina_fix_handling_tx_chain_tail.patch | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/target/linux/rb532/patches-2.6.28/013-korina_fix_handling_tx_chain_tail.patch b/target/linux/rb532/patches-2.6.28/013-korina_fix_handling_tx_chain_tail.patch deleted file mode 100644 index 88fcc53a6c..0000000000 --- a/target/linux/rb532/patches-2.6.28/013-korina_fix_handling_tx_chain_tail.patch +++ /dev/null @@ -1,81 +0,0 @@ -Originally this must have been a rewrite error when introducing -'chain_index'. But the original driver did not use the previous chain -item everywhere: when altering the address tx_chain_tail points to, it -should move forward, not backwards. -Also this is not an "index" but rather the penultimate element in the -chain, so rename it accordingly. - -Signed-off-by: Phil Sutter <n0-1@freewrt.org> ---- - drivers/net/korina.c | 22 +++++++++++----------- - 1 files changed, 11 insertions(+), 11 deletions(-) - ---- a/drivers/net/korina.c -+++ b/drivers/net/korina.c -@@ -199,7 +199,7 @@ static int korina_send_packet(struct sk_ - struct korina_private *lp = netdev_priv(dev); - unsigned long flags; - u32 length; -- u32 chain_index; -+ u32 chain_prev, chain_next; - struct dma_desc *td; - - spin_lock_irqsave(&lp->lock, flags); -@@ -231,8 +231,8 @@ static int korina_send_packet(struct sk_ - /* Setup the transmit descriptor. */ - dma_cache_inv((u32) td, sizeof(*td)); - td->ca = CPHYSADDR(skb->data); -- chain_index = (lp->tx_chain_tail - 1) & -- KORINA_TDS_MASK; -+ chain_prev = (lp->tx_chain_tail - 1) & KORINA_TDS_MASK; -+ chain_next = (lp->tx_chain_tail + 1) & KORINA_TDS_MASK; - - if (readl(&(lp->tx_dma_regs->dmandptr)) == 0) { - if (lp->tx_chain_status == desc_empty) { -@@ -240,7 +240,7 @@ static int korina_send_packet(struct sk_ - td->control = DMA_COUNT(length) | - DMA_DESC_COF | DMA_DESC_IOF; - /* Move tail */ -- lp->tx_chain_tail = chain_index; -+ lp->tx_chain_tail = chain_next; - /* Write to NDPTR */ - writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), - &lp->tx_dma_regs->dmandptr); -@@ -251,12 +251,12 @@ static int korina_send_packet(struct sk_ - td->control = DMA_COUNT(length) | - DMA_DESC_COF | DMA_DESC_IOF; - /* Link to prev */ -- lp->td_ring[chain_index].control &= -+ lp->td_ring[chain_prev].control &= - ~DMA_DESC_COF; - /* Link to prev */ -- lp->td_ring[chain_index].link = CPHYSADDR(td); -+ lp->td_ring[chain_prev].link = CPHYSADDR(td); - /* Move tail */ -- lp->tx_chain_tail = chain_index; -+ lp->tx_chain_tail = chain_next; - /* Write to NDPTR */ - writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), - &(lp->tx_dma_regs->dmandptr)); -@@ -270,17 +270,17 @@ static int korina_send_packet(struct sk_ - td->control = DMA_COUNT(length) | - DMA_DESC_COF | DMA_DESC_IOF; - /* Move tail */ -- lp->tx_chain_tail = chain_index; -+ lp->tx_chain_tail = chain_next; - lp->tx_chain_status = desc_filled; - netif_stop_queue(dev); - } else { - /* Update tail */ - td->control = DMA_COUNT(length) | - DMA_DESC_COF | DMA_DESC_IOF; -- lp->td_ring[chain_index].control &= -+ lp->td_ring[chain_prev].control &= - ~DMA_DESC_COF; -- lp->td_ring[chain_index].link = CPHYSADDR(td); -- lp->tx_chain_tail = chain_index; -+ lp->td_ring[chain_prev].link = CPHYSADDR(td); -+ lp->tx_chain_tail = chain_next; - } - } - dma_cache_wback((u32) td, sizeof(*td)); |