diff options
Diffstat (limited to 'drivers/net/ethernet/marvell')
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 84 |
1 files changed, 42 insertions, 42 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index a7826f0a968e..d9dadee6ab79 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -178,8 +178,7 @@ /* Napi polling weight */ #define MVNETA_RX_POLL_WEIGHT 64 -/* - * The two bytes Marvell header. Either contains a special value used +/* The two bytes Marvell header. Either contains a special value used * by Marvell switches when a specific hardware mode is enabled (not * supported by this driver) or is filled automatically by zeroes on * the RX side. Those two bytes being at the front of the Ethernet @@ -259,8 +258,7 @@ struct mvneta_port { unsigned int speed; }; -/* - * The mvneta_tx_desc and mvneta_rx_desc structures describe the +/* The mvneta_tx_desc and mvneta_rx_desc structures describe the * layout of the transmit and reception DMA descriptors, and their * layout is therefore defined by the hardware design */ @@ -318,7 +316,8 @@ struct mvneta_tx_queue { int size; /* Number of currently used TX DMA descriptor in the - * descriptor ring */ + * descriptor ring + */ int count; /* Array of transmitted skb */ @@ -454,8 +453,7 @@ struct rtnl_link_stats64 *mvneta_get_stats64(struct net_device *dev, /* Rx descriptors helper methods */ -/* - * Checks whether the given RX descriptor is both the first and the +/* Checks whether the given RX descriptor is both the first and the * last descriptor for the RX packet. Each RX packet is currently * received through a single RX descriptor, so not having each RX * descriptor with its first and last bits set is an error @@ -472,7 +470,8 @@ static void mvneta_rxq_non_occup_desc_add(struct mvneta_port *pp, int ndescs) { /* Only MVNETA_RXQ_ADD_NON_OCCUPIED_MAX (255) descriptors can - * be added at once */ + * be added at once + */ while (ndescs > MVNETA_RXQ_ADD_NON_OCCUPIED_MAX) { mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), (MVNETA_RXQ_ADD_NON_OCCUPIED_MAX << @@ -494,8 +493,7 @@ static int mvneta_rxq_busy_desc_num_get(struct mvneta_port *pp, return val & MVNETA_RXQ_OCCUPIED_ALL_MASK; } -/* - * Update num of rx desc called upon return from rx path or +/* Update num of rx desc called upon return from rx path or * from mvneta_rxq_drop_pkts(). */ static void mvneta_rxq_desc_num_update(struct mvneta_port *pp, @@ -580,7 +578,8 @@ static void mvneta_txq_pend_desc_add(struct mvneta_port *pp, u32 val; /* Only 255 descriptors can be added at once ; Assume caller - process TX desriptors in quanta less than 256 */ + * process TX desriptors in quanta less than 256 + */ val = pend_desc; mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); } @@ -596,7 +595,8 @@ mvneta_txq_next_desc_get(struct mvneta_tx_queue *txq) } /* Release the last allocated TX descriptor. Useful to handle DMA - * mapping failures in the TX path. */ + * mapping failures in the TX path. + */ static void mvneta_txq_desc_put(struct mvneta_tx_queue *txq) { if (txq->next_desc_to_proc == 0) @@ -714,7 +714,8 @@ static void mvneta_port_down(struct mvneta_port *pp) } while (val & 0xff); /* Stop Tx port activity. Check port Tx activity. Issue stop - command for active channels only */ + * command for active channels only + */ val = (mvreg_read(pp, MVNETA_TXQ_CMD)) & MVNETA_TXQ_ENABLE_MASK; if (val != 0) @@ -865,7 +866,8 @@ static void mvneta_defaults_set(struct mvneta_port *pp) mvreg_write(pp, MVNETA_MBUS_RETRY, 0x20); /* Set CPU queue access map - all CPUs have access to all RX - queues and to all TX queues */ + * queues and to all TX queues + */ for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) mvreg_write(pp, MVNETA_CPU_MAP(cpu), (MVNETA_CPU_RXQ_ACCESS_ALL_MASK | @@ -1010,9 +1012,8 @@ static void mvneta_mac_addr_set(struct mvneta_port *pp, unsigned char *addr, mvneta_set_ucast_addr(pp, addr[5], queue); } -/* - * Set the number of packets that will be received before - * RX interrupt will be generated by HW. +/* Set the number of packets that will be received before RX interrupt + * will be generated by HW. */ static void mvneta_rx_pkts_coal_set(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, u32 value) @@ -1022,9 +1023,8 @@ static void mvneta_rx_pkts_coal_set(struct mvneta_port *pp, rxq->pkts_coal = value; } -/* - * Set the time delay in usec before - * RX interrupt will be generated by HW. +/* Set the time delay in usec before RX interrupt will be generated by + * HW. */ static void mvneta_rx_time_coal_set(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, u32 value) @@ -1102,8 +1102,7 @@ static int mvneta_txq_sent_desc_num_get(struct mvneta_port *pp, return sent_desc; } -/* - * Get number of sent descriptors and decrement counter. +/* Get number of sent descriptors and decrement counter. * The number of sent descriptors is returned. */ static int mvneta_txq_sent_desc_proc(struct mvneta_port *pp, @@ -1128,8 +1127,9 @@ static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto, u32 command; /* Fields: L3_offset, IP_hdrlen, L3_type, G_IPv4_chk, - G_L4_chk, L4_type; required only for checksum - calculation */ + * G_L4_chk, L4_type; required only for checksum + * calculation + */ command = l3_offs << MVNETA_TX_L3_OFF_SHIFT; command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT; @@ -1305,8 +1305,7 @@ static u32 mvneta_skb_tx_csum(struct mvneta_port *pp, struct sk_buff *skb) return MVNETA_TX_L4_CSUM_NOT; } -/* - * Returns rx queue pointer (find last set bit) according to causeRxTx +/* Returns rx queue pointer (find last set bit) according to causeRxTx * value */ static struct mvneta_rx_queue *mvneta_rx_policy(struct mvneta_port *pp, @@ -1454,7 +1453,8 @@ static int mvneta_tx_frag_process(struct mvneta_port *pp, struct sk_buff *skb, error: /* Release all descriptors that were used to map fragments of - * this packet, as well as the corresponding DMA mappings */ + * this packet, as well as the corresponding DMA mappings + */ for (i = i - 1; i >= 0; i--) { tx_desc = txq->descs + i; dma_unmap_single(pp->dev->dev.parent, @@ -1546,7 +1546,8 @@ out: mvneta_txq_done(pp, txq); /* If after calling mvneta_txq_done, count equals - frags, we need to set the timer */ + * frags, we need to set the timer + */ if (txq->count == frags && frags > 0) mvneta_add_tx_done_timer(pp); @@ -1598,8 +1599,7 @@ static u32 mvneta_tx_done_gbe(struct mvneta_port *pp, u32 cause_tx_done, return tx_done; } -/* - * Compute crc8 of the specified address, using a unique algorithm , +/* Compute crc8 of the specified address, using a unique algorithm , * according to hw spec, different than generic crc8 algorithm */ static int mvneta_addr_crc(unsigned char *addr) @@ -1828,8 +1828,7 @@ static int mvneta_poll(struct napi_struct *napi, int budget) cause_rx_tx = mvreg_read(pp, MVNETA_INTR_NEW_CAUSE) & MVNETA_RX_INTR_MASK(rxq_number); - /* - * For the case where the last mvneta_poll did not process all + /* For the case where the last mvneta_poll did not process all * RX packets */ cause_rx_tx |= pp->cause_rx_tx; @@ -1847,10 +1846,12 @@ static int mvneta_poll(struct napi_struct *napi, int budget) rx_done += count; budget -= count; if (budget > 0) { - /* set off the rx bit of the corresponding bit - in the cause rx tx register, so that next - iteration will find the next rx queue where - packets are received on */ + /* set off the rx bit of the + * corresponding bit in the cause rx + * tx register, so that next iteration + * will find the next rx queue where + * packets are received on + */ cause_rx_tx &= ~((1 << rxq->id) << 8); } } @@ -1925,7 +1926,8 @@ static int mvneta_rxq_fill(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, } /* Add this number of RX descriptors as non occupied (ready to - get packets) */ + * get packets) + */ mvneta_rxq_non_occup_desc_add(pp, rxq, i); return i; @@ -2201,7 +2203,7 @@ static int mvneta_check_mtu_valid(struct net_device *dev, int mtu) return -EINVAL; } - /* 9676 == 9700 - 20 and rounding to 8 */ + /* 9676 == 9700 - 20 and rounding to 8 */ if (mtu > 9676) { netdev_info(dev, "Illegal MTU value %d, round to 9676\n", mtu); mtu = 9676; @@ -2231,8 +2233,7 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu) if (!netif_running(dev)) return 0; - /* - * The interface is running, so we have to force a + /* The interface is running, so we have to force a * reallocation of the RXQs */ mvneta_stop_dev(pp); @@ -2677,8 +2678,7 @@ static int __devinit mvneta_probe(struct platform_device *pdev) int phy_mode; int err; - /* - * Our multiqueue support is not complete, so for now, only + /* Our multiqueue support is not complete, so for now, only * allow the usage of the first RX queue */ if (rxq_def != 0) { |
