diff options
| author | Alan Cox <alan@linux.intel.com> | 2009-11-18 14:07:58 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 12:23:21 -0800 |
| commit | 99fd99f618daecae638550275cb132ab1ffe464c (patch) | |
| tree | 368720fb2b8acf69ca799d90d3afd1a2191c158a /drivers/staging/et131x/et1310_rx.c | |
| parent | 2e5e0b890d4f6f2e9e836c2c21157fbb085c3ed9 (diff) | |
Staging: et131x: clean up the avail fields in the rx registers
These have a wrap bit but again need little work to clean out. There are a
couple of uglies left that want addressing in later clean up. Notably we should
probably keep the local psr copy and wrap as two values.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/et131x/et1310_rx.c')
| -rw-r--r-- | drivers/staging/et131x/et1310_rx.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/staging/et131x/et1310_rx.c b/drivers/staging/et131x/et1310_rx.c index c3778d2c5df5..3ddc9b12b8db 100644 --- a/drivers/staging/et131x/et1310_rx.c +++ b/drivers/staging/et131x/et1310_rx.c @@ -624,7 +624,7 @@ void ConfigRxDmaRegs(struct et131x_adapter *etdev) &rx_dma->psr_base_hi); writel((u32) rx_local->pPSRingPa, &rx_dma->psr_base_lo); writel(rx_local->PsrNumEntries - 1, &rx_dma->psr_num_des); - writel(0, &rx_dma->psr_full_offset.value); + writel(0, &rx_dma->psr_full_offset); psr_num_des = readl(&rx_dma->psr_num_des) & 0xFFF; writel((psr_num_des * LO_MARK_PERCENT_FOR_PSR) / 100, @@ -633,8 +633,7 @@ void ConfigRxDmaRegs(struct et131x_adapter *etdev) spin_lock_irqsave(&etdev->RcvLock, flags); /* These local variables track the PSR in the adapter structure */ - rx_local->local_psr_full.bits.psr_full = 0; - rx_local->local_psr_full.bits.psr_full_wrap = 0; + rx_local->local_psr_full = 0; /* Now's the best time to initialize FBR1 contents */ fbr_entry = (PFBR_DESC_t) rx_local->pFbr1RingVa; @@ -808,17 +807,18 @@ PMP_RFD nic_rx_pkts(struct et131x_adapter *etdev) */ status = (PRX_STATUS_BLOCK_t) rx_local->pRxStatusVa; + /* FIXME: tidy later when conversions complete */ if (status->Word1.bits.PSRoffset == - rx_local->local_psr_full.bits.psr_full && + (rx_local->local_psr_full & 0xFFF) && status->Word1.bits.PSRwrap == - rx_local->local_psr_full.bits.psr_full_wrap) { + ((rx_local->local_psr_full >> 12) & 1)) { /* Looks like this ring is not updated yet */ return NULL; } /* The packet status ring indicates that data is available. */ psr = (PPKT_STAT_DESC_t) (rx_local->pPSRingVa) + - rx_local->local_psr_full.bits.psr_full; + (rx_local->local_psr_full & 0xFFF); /* Grab any information that is required once the PSR is * advanced, since we can no longer rely on the memory being @@ -830,14 +830,16 @@ PMP_RFD nic_rx_pkts(struct et131x_adapter *etdev) Word0 = psr->word0; /* Indicate that we have used this PSR entry. */ - if (++rx_local->local_psr_full.bits.psr_full > - rx_local->PsrNumEntries - 1) { - rx_local->local_psr_full.bits.psr_full = 0; - rx_local->local_psr_full.bits.psr_full_wrap ^= 1; + /* FIXME wrap 12 */ + rx_local->local_psr_full = (rx_local->local_psr_full + 1) & 0xFFF; + if (rx_local->local_psr_full > rx_local->PsrNumEntries - 1) { + /* Clear psr full and toggle the wrap bit */ + rx_local->local_psr_full &= 0xFFF; + rx_local->local_psr_full ^= 0x1000; } - writel(rx_local->local_psr_full.value, - &etdev->regs->rxdma.psr_full_offset.value); + writel(rx_local->local_psr_full, + &etdev->regs->rxdma.psr_full_offset); #ifndef USE_FBR0 if (rindex != 1) { @@ -860,7 +862,7 @@ PMP_RFD nic_rx_pkts(struct et131x_adapter *etdev) dev_err(&etdev->pdev->dev, "NICRxPkts PSR Entry %d indicates " "length of %d and/or bad bi(%d)\n", - rx_local->local_psr_full.bits.psr_full, + rx_local->local_psr_full & 0xFFF, len, bindex); return NULL; } |