diff options
| author | Timo Teräs <timo.teras@iki.fi> | 2013-01-16 01:01:24 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-17 03:02:09 +0400 |
| commit | 9fba0812c15e531c3ff1752174f04234b7a55fc4 (patch) | |
| tree | 4100656433a3f029344133939e54a252f6da26b1 /drivers/net/ethernet/realtek | |
| parent | f92d318023ff70a273690a91568597168ac32f05 (diff) | |
| download | linux-9fba0812c15e531c3ff1752174f04234b7a55fc4.tar.xz | |
r8169: remove unneeded dirty_rx index
After commit 6f0333b ("r8169: use 50% less ram for RX ring") the rx
ring buffers are always copied making dirty_rx useless.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/realtek')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 89184f3bc6d6..97fdbb1d6412 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -83,7 +83,7 @@ static const int multicast_filter_limit = 32; #define R8169_REGS_SIZE 256 #define R8169_NAPI_WEIGHT 64 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ -#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ +#define NUM_RX_DESC 256U /* Number of Rx descriptor registers */ #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) @@ -727,7 +727,6 @@ struct rtl8169_private { u16 mac_version; u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ - u32 dirty_rx; u32 dirty_tx; struct rtl8169_stats rx_stats; struct rtl8169_stats tx_stats; @@ -4177,7 +4176,7 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp) static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) { - tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; + tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0; } static void rtl_hw_jumbo_enable(struct rtl8169_private *tp) @@ -5920,7 +5919,7 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev) PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); /* The infamous DAC f*ckup only happens at boot time */ - if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { + if ((tp->cp_cmd & PCIDAC) && !tp->cur_rx) { void __iomem *ioaddr = tp->mmio_addr; netif_info(tp, intr, dev, "disabling PCI DAC\n"); @@ -6035,10 +6034,8 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget unsigned int count; cur_rx = tp->cur_rx; - rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; - rx_left = min(rx_left, budget); - for (; rx_left > 0; rx_left--, cur_rx++) { + for (rx_left = min(budget, NUM_RX_DESC); rx_left > 0; rx_left--, cur_rx++) { unsigned int entry = cur_rx % NUM_RX_DESC; struct RxDesc *desc = tp->RxDescArray + entry; u32 status; @@ -6123,8 +6120,6 @@ process_pkt: count = cur_rx - tp->cur_rx; tp->cur_rx = cur_rx; - tp->dirty_rx += count; - return count; } |