diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet-rx.c')
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.c | 77 |
1 files changed, 25 insertions, 52 deletions
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 1b237b7e689..f63459a96da 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -33,10 +33,6 @@ #include <linux/ip.h> #include <linux/string.h> #include <linux/prefetch.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/seq_file.h> -#include <linux/proc_fs.h> #include <net/dst.h> #ifdef CONFIG_XFRM #include <linux/xfrm.h> @@ -292,39 +288,27 @@ void cvm_oct_tasklet_rx(unsigned long unused) * buffer. */ if (likely(skb_in_hw)) { - /* - * This calculation was changed in case the - * skb header is using a different address - * aliasing type than the buffer. It doesn't - * make any differnece now, but the new one is - * more correct. - */ - skb->data = - skb->head + work->packet_ptr.s.addr - - cvmx_ptr_to_phys(skb->head); + skb->data = skb->head + work->packet_ptr.s.addr - cvmx_ptr_to_phys(skb->head); prefetch(skb->data); skb->len = work->len; skb_set_tail_pointer(skb, skb->len); packet_not_copied = 1; } else { - /* * We have to copy the packet. First allocate * an skbuff for it. */ skb = dev_alloc_skb(work->len); if (!skb) { - DEBUGPRINT("Port %d failed to allocate " - "skbuff, packet dropped\n", - work->ipprt); + DEBUGPRINT("Port %d failed to allocate skbuff, packet dropped\n", + work->ipprt); cvm_oct_free_work(work); continue; } /* * Check if we've received a packet that was - * entirely stored in the work entry. This is - * untested. + * entirely stored in the work entry. */ if (unlikely(work->word2.s.bufs == 0)) { uint8_t *ptr = work->packet_data; @@ -343,15 +327,13 @@ void cvm_oct_tasklet_rx(unsigned long unused) /* No packet buffers to free */ } else { int segments = work->word2.s.bufs; - union cvmx_buf_ptr segment_ptr = - work->packet_ptr; + union cvmx_buf_ptr segment_ptr = work->packet_ptr; int len = work->len; while (segments--) { union cvmx_buf_ptr next_ptr = - *(union cvmx_buf_ptr *) - cvmx_phys_to_ptr(segment_ptr.s. - addr - 8); + *(union cvmx_buf_ptr *)cvmx_phys_to_ptr(segment_ptr.s.addr - 8); + /* * Octeon Errata PKI-100: The segment size is * wrong. Until it is fixed, calculate the @@ -361,22 +343,18 @@ void cvm_oct_tasklet_rx(unsigned long unused) * one: int segment_size = * segment_ptr.s.size; */ - int segment_size = - CVMX_FPA_PACKET_POOL_SIZE - - (segment_ptr.s.addr - - (((segment_ptr.s.addr >> 7) - - segment_ptr.s.back) << 7)); - /* Don't copy more than what is left - in the packet */ + int segment_size = CVMX_FPA_PACKET_POOL_SIZE - + (segment_ptr.s.addr - (((segment_ptr.s.addr >> 7) - segment_ptr.s.back) << 7)); + /* + * Don't copy more than what + * is left in the packet. + */ if (segment_size > len) segment_size = len; /* Copy the data into the packet */ memcpy(skb_put(skb, segment_size), - cvmx_phys_to_ptr(segment_ptr.s. - addr), + cvmx_phys_to_ptr(segment_ptr.s.addr), segment_size); - /* Reduce the amount of bytes left - to copy */ len -= segment_size; segment_ptr = next_ptr; } @@ -389,16 +367,15 @@ void cvm_oct_tasklet_rx(unsigned long unused) struct net_device *dev = cvm_oct_device[work->ipprt]; struct octeon_ethernet *priv = netdev_priv(dev); - /* Only accept packets for devices - that are currently up */ + /* + * Only accept packets for devices that are + * currently up. + */ if (likely(dev->flags & IFF_UP)) { skb->protocol = eth_type_trans(skb, dev); skb->dev = dev; - if (unlikely - (work->word2.s.not_IP - || work->word2.s.IP_exc - || work->word2.s.L4_error)) + if (unlikely(work->word2.s.not_IP || work->word2.s.IP_exc || work->word2.s.L4_error)) skb->ip_summed = CHECKSUM_NONE; else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -415,14 +392,11 @@ void cvm_oct_tasklet_rx(unsigned long unused) } netif_receive_skb(skb); } else { + /* Drop any packet received for a device that isn't up */ /* - * Drop any packet received for a - * device that isn't up. - */ - /* - DEBUGPRINT("%s: Device not up, packet dropped\n", - dev->name); - */ + DEBUGPRINT("%s: Device not up, packet dropped\n", + dev->name); + */ #ifdef CONFIG_64BIT atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped); #else @@ -435,9 +409,8 @@ void cvm_oct_tasklet_rx(unsigned long unused) * Drop any packet received for a device that * doesn't exist. */ - DEBUGPRINT("Port %d not controlled by Linux, packet " - "dropped\n", - work->ipprt); + DEBUGPRINT("Port %d not controlled by Linux, packet dropped\n", + work->ipprt); dev_kfree_skb_irq(skb); } /* |