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authorAlan Cox <alan@linux.intel.com>2009-08-27 11:01:57 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-15 12:02:28 -0700
commit356c74b401f6b05ae5d793e9d1a9ba8297b8e3ff (patch)
tree9c5aaad97326bbaf453b825b024b32756d2a951c /drivers/staging/et131x/et1310_rx.c
parentf2c98d27b8e88cd17bb3e77f8fccf70f8d2ebd2f (diff)
Staging: et131x: clean up DMA10/DMA4 types
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.c60
1 files changed, 22 insertions, 38 deletions
diff --git a/drivers/staging/et131x/et1310_rx.c b/drivers/staging/et131x/et1310_rx.c
index 7f36de04703..757a8cd4541 100644
--- a/drivers/staging/et131x/et1310_rx.c
+++ b/drivers/staging/et131x/et1310_rx.c
@@ -739,20 +739,12 @@ void ConfigRxDmaRegs(struct et131x_adapter *etdev)
writel((uint32_t) (pRxLocal->Fbr1Realpa >> 32), &rx_dma->fbr1_base_hi);
writel((uint32_t) pRxLocal->Fbr1Realpa, &rx_dma->fbr1_base_lo);
writel(pRxLocal->Fbr1NumEntries - 1, &rx_dma->fbr1_num_des.value);
-
- {
- DMA10W_t fbr1_full = { 0 };
-
- fbr1_full.bits.val = 0;
- fbr1_full.bits.wrap = 1;
- writel(fbr1_full.value, &rx_dma->fbr1_full_offset.value);
- }
+ writel(ET_DMA10_WRAP, &rx_dma->fbr1_full_offset);
/* This variable tracks the free buffer ring 1 full position, so it
* has to match the above.
*/
- pRxLocal->local_Fbr1_full.bits.val = 0;
- pRxLocal->local_Fbr1_full.bits.wrap = 1;
+ pRxLocal->local_Fbr1_full = ET_DMA10_WRAP;
writel(((pRxLocal->Fbr1NumEntries * LO_MARK_PERCENT_FOR_RX) / 100) - 1,
&rx_dma->fbr1_min_des.value);
@@ -769,20 +761,12 @@ void ConfigRxDmaRegs(struct et131x_adapter *etdev)
writel((uint32_t) (pRxLocal->Fbr0Realpa >> 32), &rx_dma->fbr0_base_hi);
writel((uint32_t) pRxLocal->Fbr0Realpa, &rx_dma->fbr0_base_lo);
writel(pRxLocal->Fbr0NumEntries - 1, &rx_dma->fbr0_num_des.value);
-
- {
- DMA10W_t fbr0_full = { 0 };
-
- fbr0_full.bits.val = 0;
- fbr0_full.bits.wrap = 1;
- writel(fbr0_full.value, &rx_dma->fbr0_full_offset.value);
- }
+ writel(ET_DMA10_WRAP, &rx_dma->fbr0_full_offset);
/* This variable tracks the free buffer ring 0 full position, so it
* has to match the above.
*/
- pRxLocal->local_Fbr0_full.bits.val = 0;
- pRxLocal->local_Fbr0_full.bits.wrap = 1;
+ pRxLocal->local_Fbr0_full = ET_DMA10_WRAP;
writel(((pRxLocal->Fbr0NumEntries * LO_MARK_PERCENT_FOR_RX) / 100) - 1,
&rx_dma->fbr0_min_des.value);
#endif
@@ -1282,6 +1266,16 @@ void et131x_handle_recv_interrupt(struct et131x_adapter *etdev)
DBG_RX_LEAVE(et131x_dbginfo);
}
+static inline u32 bump_fbr(u32 *fbr, u32 limit)
+{
+ u32 v = *fbr;
+ add_10bit(&v, 1);
+ if (v > limit)
+ v = (*fbr & ~ET_DMA10_MASK) ^ ET_DMA10_WRAP;
+ *fbr = v;
+ return v;
+}
+
/**
* NICReturnRFD - Recycle a RFD and put it back onto the receive list
* @etdev: pointer to our adapter
@@ -1310,7 +1304,7 @@ void nic_return_rfd(struct et131x_adapter *etdev, PMP_RFD pMpRfd)
if (ri == 1) {
PFBR_DESC_t pNextDesc =
(PFBR_DESC_t) (rx_local->pFbr1RingVa) +
- rx_local->local_Fbr1_full.bits.val;
+ INDEX10(rx_local->local_Fbr1_full);
/* Handle the Free Buffer Ring advancement here. Write
* the PA / Buffer Index for the returned buffer into
@@ -1320,20 +1314,15 @@ void nic_return_rfd(struct et131x_adapter *etdev, PMP_RFD pMpRfd)
pNextDesc->addr_lo = rx_local->Fbr[1]->PALow[bi];
pNextDesc->word2.value = bi;
- if (++rx_local->local_Fbr1_full.bits.val >
- (rx_local->Fbr1NumEntries - 1)) {
- rx_local->local_Fbr1_full.bits.val = 0;
- rx_local->local_Fbr1_full.bits.wrap ^= 1;
- }
-
- writel(rx_local->local_Fbr1_full.value,
- &rx_dma->fbr1_full_offset.value);
+ writel(bump_fbr(&rx_local->local_Fbr1_full,
+ rx_local->Fbr1NumEntries - 1),
+ &rx_dma->fbr1_full_offset);
}
#ifdef USE_FBR0
else {
PFBR_DESC_t pNextDesc =
(PFBR_DESC_t) rx_local->pFbr0RingVa +
- rx_local->local_Fbr0_full.bits.val;
+ INDEX10(rx_local->local_Fbr0_full);
/* Handle the Free Buffer Ring advancement here. Write
* the PA / Buffer Index for the returned buffer into
@@ -1343,14 +1332,9 @@ void nic_return_rfd(struct et131x_adapter *etdev, PMP_RFD pMpRfd)
pNextDesc->addr_lo = rx_local->Fbr[0]->PALow[bi];
pNextDesc->word2.value = bi;
- if (++rx_local->local_Fbr0_full.bits.val >
- (rx_local->Fbr0NumEntries - 1)) {
- rx_local->local_Fbr0_full.bits.val = 0;
- rx_local->local_Fbr0_full.bits.wrap ^= 1;
- }
-
- writel(rx_local->local_Fbr0_full.value,
- &rx_dma->fbr0_full_offset.value);
+ writel(bump_fbr(&rx_local->local_Fbr0_full,
+ rx_local->Fbr0NumEntries - 1),
+ &rx_dma->fbr0_full_offset);
}
#endif
spin_unlock_irqrestore(&etdev->FbrLock, flags);