From 38b54053d4ff568d5115c4b50c720544c7819e64 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Tue, 8 May 2007 00:47:26 -0500 Subject: [PATCH] --- yaml --- r: 55118 b: refs/heads/master c: 1b0335ea30bf85eecffd21be64b7653407d6259a h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/drivers/net/pasemi_mac.c | 44 +++++++++++++++++++++++++++++++--- 2 files changed, 42 insertions(+), 4 deletions(-) diff --git a/[refs] b/[refs] index cb22820fa813..12a537e54b5f 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 771f7404a9deca902594823d616cd7a84f827982 +refs/heads/master: 1b0335ea30bf85eecffd21be64b7653407d6259a diff --git a/trunk/drivers/net/pasemi_mac.c b/trunk/drivers/net/pasemi_mac.c index c7995d77ccfc..73e79f35a428 100644 --- a/trunk/drivers/net/pasemi_mac.c +++ b/trunk/drivers/net/pasemi_mac.c @@ -362,6 +362,42 @@ static void pasemi_mac_replenish_rx_ring(struct net_device *dev) mac->rx->next_to_fill += count; } +static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac) +{ + unsigned int reg, stat; + /* Re-enable packet count interrupts: finally + * ack the packet count interrupt we got in rx_intr. + */ + + pci_read_config_dword(mac->iob_pdev, + PAS_IOB_DMA_RXCH_STAT(mac->dma_rxch), + &stat); + + reg = PAS_IOB_DMA_RXCH_RESET_PCNT(stat & PAS_IOB_DMA_RXCH_STAT_CNTDEL_M) + | PAS_IOB_DMA_RXCH_RESET_PINTC; + + pci_write_config_dword(mac->iob_pdev, + PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch), + reg); +} + +static void pasemi_mac_restart_tx_intr(struct pasemi_mac *mac) +{ + unsigned int reg, stat; + + /* Re-enable packet count interrupts */ + pci_read_config_dword(mac->iob_pdev, + PAS_IOB_DMA_TXCH_STAT(mac->dma_txch), &stat); + + reg = PAS_IOB_DMA_TXCH_RESET_PCNT(stat & PAS_IOB_DMA_TXCH_STAT_CNTDEL_M) + | PAS_IOB_DMA_TXCH_RESET_PINTC; + + pci_write_config_dword(mac->iob_pdev, + PAS_IOB_DMA_TXCH_RESET(mac->dma_txch), reg); +} + + + static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit) { unsigned int i; @@ -559,6 +595,10 @@ static int pasemi_mac_open(struct net_device *dev) pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_RXCH_CFG(mac->dma_rxch), PAS_IOB_DMA_RXCH_CFG_CNTTH(30)); + /* Clear out any residual packet count state from firmware */ + pasemi_mac_restart_rx_intr(mac); + pasemi_mac_restart_tx_intr(mac); + pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG, PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000)); @@ -835,9 +875,7 @@ static int pasemi_mac_poll(struct net_device *dev, int *budget) /* all done, no more packets present */ netif_rx_complete(dev); - /* re-enable receive interrupts */ - pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG, - PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000)); + pasemi_mac_restart_rx_intr(mac); return 0; } else { /* used up our quantum, so reschedule */