diff options
| author |   Mugunthan V N <mugunthanvnm@ti.com> | 2013-02-17 22:19:20 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-02-18 14:51:50 -0500 |
| commit | 510a1e7249298f6bbd049e1ec98041ddf5ef6452 (patch) | |
| tree | 51604f599a9ffc5f7e824235c52b5975eb51e315 /drivers/net/ethernet/ti/davinci_cpdma.h | |
| parent | tg3: Use different macros for pci_chip_rev_id accesses (diff) | |
| download | linux-dev-510a1e7249298f6bbd049e1ec98041ddf5ef6452.tar.xz linux-dev-510a1e7249298f6bbd049e1ec98041ddf5ef6452.zip | |
drivers: net: davinci_cpdma: acknowledge interrupt properly
CPDMA interrupts are not properly acknowledged which leads to interrupt
storm, only cpdma interrupt 0 is acknowledged in Davinci CPDMA driver.
Changed cpdma_ctlr_eoi api to acknowledge 1 and 2 interrupts which are
used for rx and tx respectively.
Reported-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index a97d6ab30941..d9bcc6032fdc 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -26,6 +26,11 @@ #define CPDMA_RX_SOURCE_PORT(__status__) ((__status__ >> 16) & 0x7) +#define CPDMA_EOI_RX_THRESH 0x0 +#define CPDMA_EOI_RX 0x1 +#define CPDMA_EOI_TX 0x2 +#define CPDMA_EOI_MISC 0x3 + struct cpdma_params { struct device *dev; void __iomem *dmaregs; @@ -88,7 +93,7 @@ int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, int cpdma_chan_process(struct cpdma_chan *chan, int quota); int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable); -void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr); +void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr, u32 value); int cpdma_chan_int_ctrl(struct cpdma_chan *chan, bool enable); bool cpdma_check_free_tx_desc(struct cpdma_chan *chan); |