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chelsio: misc cleanups in sge 

- duplicated code in sge::free_cmdQ_buffers ;
- NET_IP_ALIGN is already defined in (included) <linux/skbuff.h> ;
- pci_alloc_consistent() returns void * ;
- pci_alloc_consistent() returns a zeroed chunk of memory ;
- early return in restart_tx_queues.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
This commit is contained in:
Francois Romieu 2006-12-05 23:57:41 +01:00 committed by Jeff Garzik
parent 47cbe6f47d
commit 3e0f75be52
1 changed files with 19 additions and 35 deletions
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54
drivers/net/chelsio/sge.c
View File

@ -85,10 +85,6 @@
*/
#define TX_RECLAIM_PERIOD (HZ / 4)
#ifndef NET_IP_ALIGN
# define NET_IP_ALIGN 2
#endif
#define M_CMD_LEN 0x7fffffff
#define V_CMD_LEN(v) (v)
#define G_CMD_LEN(v) ((v) & M_CMD_LEN)
@ -575,11 +571,10 @@ static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
q->size = p->freelQ_size[i];
q->dma_offset = sge->rx_pkt_pad ? 0 : NET_IP_ALIGN;
size = sizeof(struct freelQ_e) * q->size;
q->entries = (struct freelQ_e *)
pci_alloc_consistent(pdev, size, &q->dma_addr);
q->entries = pci_alloc_consistent(pdev, size, &q->dma_addr);
if (!q->entries)
goto err_no_mem;
memset(q->entries, 0, size);
size = sizeof(struct freelQ_ce) * q->size;
q->centries = kzalloc(size, GFP_KERNEL);
if (!q->centries)
@ -613,11 +608,10 @@ static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
sge->respQ.size = SGE_RESPQ_E_N;
sge->respQ.credits = 0;
size = sizeof(struct respQ_e) * sge->respQ.size;
sge->respQ.entries = (struct respQ_e *)
sge->respQ.entries =
pci_alloc_consistent(pdev, size, &sge->respQ.dma_addr);
if (!sge->respQ.entries)
goto err_no_mem;
memset(sge->respQ.entries, 0, size);
return 0;
err_no_mem:
@ -637,20 +631,12 @@ static void free_cmdQ_buffers(struct sge *sge, struct cmdQ *q, unsigned int n)
q->in_use -= n;
ce = &q->centries[cidx];
while (n--) {
if (q->sop) {
if (likely(pci_unmap_len(ce, dma_len))) {
pci_unmap_single(pdev,
pci_unmap_addr(ce, dma_addr),
pci_unmap_len(ce, dma_len),
PCI_DMA_TODEVICE);
if (likely(pci_unmap_len(ce, dma_len))) {
pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
pci_unmap_len(ce, dma_len),
PCI_DMA_TODEVICE);
if (q->sop)
q->sop = 0;
}
} else {
if (likely(pci_unmap_len(ce, dma_len))) {
pci_unmap_page(pdev, pci_unmap_addr(ce, dma_addr),
pci_unmap_len(ce, dma_len),
PCI_DMA_TODEVICE);
}
}
if (ce->skb) {
dev_kfree_skb_any(ce->skb);
@ -711,11 +697,10 @@ static int alloc_tx_resources(struct sge *sge, struct sge_params *p)
q->stop_thres = 0;
spin_lock_init(&q->lock);
size = sizeof(struct cmdQ_e) * q->size;
q->entries = (struct cmdQ_e *)
pci_alloc_consistent(pdev, size, &q->dma_addr);
q->entries = pci_alloc_consistent(pdev, size, &q->dma_addr);
if (!q->entries)
goto err_no_mem;
memset(q->entries, 0, size);
size = sizeof(struct cmdQ_ce) * q->size;
q->centries = kzalloc(size, GFP_KERNEL);
if (!q->centries)
@ -1447,19 +1432,18 @@ static inline int enough_free_Tx_descs(const struct cmdQ *q)
static void restart_tx_queues(struct sge *sge)
{
struct adapter *adap = sge->adapter;
int i;
if (enough_free_Tx_descs(&sge->cmdQ[0])) {
int i;
if (!enough_free_Tx_descs(&sge->cmdQ[0]))
return;
for_each_port(adap, i) {
struct net_device *nd = adap->port[i].dev;
for_each_port(adap, i) {
struct net_device *nd = adap->port[i].dev;
if (test_and_clear_bit(nd->if_port,
&sge->stopped_tx_queues) &&
netif_running(nd)) {
sge->stats.cmdQ_restarted[2]++;
netif_wake_queue(nd);
}
if (test_and_clear_bit(nd->if_port, &sge->stopped_tx_queues) &&
netif_running(nd)) {
sge->stats.cmdQ_restarted[2]++;
netif_wake_queue(nd);
}
}
}