From 5daffe945a60376b626896c371ef78f24698b988 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Sun, 1 Jun 2008 02:52:41 +0200 Subject: [PATCH] mv643xx_eth: get rid of hungarian variable naming Nuke some Hungarian-esque variable naming conventions: - p_ prefix for pointers - _q suffix for variables dealing with rx/tx queue state Signed-off-by: Lennert Buytenhek Acked-by: Dale Farnsworth --- drivers/net/mv643xx_eth.c | 156 +++++++++++++++++++------------------- 1 file changed, 78 insertions(+), 78 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index f23e82c84aee..ac7fc7a53678 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -323,21 +323,21 @@ struct mv643xx_eth_private { /* Tx/Rx rings managment indexes fields. For driver use */ /* Next available and first returning Rx resource */ - int rx_curr_desc_q, rx_used_desc_q; + int rx_curr_desc, rx_used_desc; /* Next available and first returning Tx resource */ - int tx_curr_desc_q, tx_used_desc_q; + int tx_curr_desc, tx_used_desc; #ifdef MV643XX_ETH_TX_FAST_REFILL u32 tx_clean_threshold; #endif - struct rx_desc *p_rx_desc_area; + struct rx_desc *rx_desc_area; dma_addr_t rx_desc_dma; int rx_desc_area_size; struct sk_buff **rx_skb; - struct tx_desc *p_tx_desc_area; + struct tx_desc *tx_desc_area; dma_addr_t tx_desc_dma; int tx_desc_area_size; struct sk_buff **tx_skb; @@ -444,31 +444,31 @@ static unsigned int mv643xx_eth_port_disable_tx(struct mv643xx_eth_private *mp) static void mv643xx_eth_free_completed_tx_descs(struct net_device *dev); static FUNC_RET_STATUS rx_return_buff(struct mv643xx_eth_private *mp, - struct pkt_info *p_pkt_info) + struct pkt_info *pkt_info) { int used_rx_desc; /* Where to return Rx resource */ - volatile struct rx_desc *p_used_rx_desc; + volatile struct rx_desc *rx_desc; unsigned long flags; spin_lock_irqsave(&mp->lock, flags); /* Get 'used' Rx descriptor */ - used_rx_desc = mp->rx_used_desc_q; - p_used_rx_desc = &mp->p_rx_desc_area[used_rx_desc]; + used_rx_desc = mp->rx_used_desc; + rx_desc = &mp->rx_desc_area[used_rx_desc]; - p_used_rx_desc->buf_ptr = p_pkt_info->buf_ptr; - p_used_rx_desc->buf_size = p_pkt_info->byte_cnt; - mp->rx_skb[used_rx_desc] = p_pkt_info->return_info; + rx_desc->buf_ptr = pkt_info->buf_ptr; + rx_desc->buf_size = pkt_info->byte_cnt; + mp->rx_skb[used_rx_desc] = pkt_info->return_info; /* Flush the write pipe */ /* Return the descriptor to DMA ownership */ wmb(); - p_used_rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; + rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; wmb(); /* Move the used descriptor pointer to the next descriptor */ - mp->rx_used_desc_q = (used_rx_desc + 1) % mp->rx_ring_size; + mp->rx_used_desc = (used_rx_desc + 1) % mp->rx_ring_size; spin_unlock_irqrestore(&mp->lock, flags); @@ -519,23 +519,23 @@ static inline void mv643xx_eth_rx_refill_descs_timer_wrapper(unsigned long data) } static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp, - struct pkt_info *p_pkt_info) + struct pkt_info *pkt_info) { int rx_next_curr_desc, rx_curr_desc, rx_used_desc; - volatile struct rx_desc *p_rx_desc; + volatile struct rx_desc *rx_desc; unsigned int command_status; unsigned long flags; spin_lock_irqsave(&mp->lock, flags); /* Get the Rx Desc ring 'curr and 'used' indexes */ - rx_curr_desc = mp->rx_curr_desc_q; - rx_used_desc = mp->rx_used_desc_q; + rx_curr_desc = mp->rx_curr_desc; + rx_used_desc = mp->rx_used_desc; - p_rx_desc = &mp->p_rx_desc_area[rx_curr_desc]; + rx_desc = &mp->rx_desc_area[rx_curr_desc]; /* The following parameters are used to save readings from memory */ - command_status = p_rx_desc->cmd_sts; + command_status = rx_desc->cmd_sts; rmb(); /* Nothing to receive... */ @@ -544,11 +544,11 @@ static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp, return ETH_END_OF_JOB; } - p_pkt_info->byte_cnt = p_rx_desc->byte_cnt - ETH_HW_IP_ALIGN; - p_pkt_info->cmd_sts = command_status; - p_pkt_info->buf_ptr = p_rx_desc->buf_ptr + ETH_HW_IP_ALIGN; - p_pkt_info->return_info = mp->rx_skb[rx_curr_desc]; - p_pkt_info->l4i_chk = p_rx_desc->buf_size; + pkt_info->byte_cnt = rx_desc->byte_cnt - ETH_HW_IP_ALIGN; + pkt_info->cmd_sts = command_status; + pkt_info->buf_ptr = rx_desc->buf_ptr + ETH_HW_IP_ALIGN; + pkt_info->return_info = mp->rx_skb[rx_curr_desc]; + pkt_info->l4i_chk = rx_desc->buf_size; /* * Clean the return info field to indicate that the @@ -558,7 +558,7 @@ static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp, /* Update current index in data structure */ rx_next_curr_desc = (rx_curr_desc + 1) % mp->rx_ring_size; - mp->rx_curr_desc_q = rx_next_curr_desc; + mp->rx_curr_desc = rx_next_curr_desc; spin_unlock_irqrestore(&mp->lock, flags); @@ -650,7 +650,7 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget) work_done = 0; if ((rdl(mp, RXQ_CURRENT_DESC_PTR(port_num))) - != (u32) mp->rx_used_desc_q) + != (u32) mp->rx_used_desc) work_done = mv643xx_eth_receive_queue(dev, budget); if (work_done < budget) { @@ -685,10 +685,10 @@ static int alloc_tx_desc_index(struct mv643xx_eth_private *mp) BUG_ON(mp->tx_desc_count >= mp->tx_ring_size); - tx_desc_curr = mp->tx_curr_desc_q; - mp->tx_curr_desc_q = (tx_desc_curr + 1) % mp->tx_ring_size; + tx_desc_curr = mp->tx_curr_desc; + mp->tx_curr_desc = (tx_desc_curr + 1) % mp->tx_ring_size; - BUG_ON(mp->tx_curr_desc_q == mp->tx_used_desc_q); + BUG_ON(mp->tx_curr_desc == mp->tx_used_desc); return tx_desc_curr; } @@ -704,7 +704,7 @@ static void tx_fill_frag_descs(struct mv643xx_eth_private *mp, skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; tx_index = alloc_tx_desc_index(mp); - desc = &mp->p_tx_desc_area[tx_index]; + desc = &mp->tx_desc_area[tx_index]; desc->cmd_sts = BUFFER_OWNED_BY_DMA; /* Last Frag enables interrupt and frees the skb */ @@ -716,7 +716,7 @@ static void tx_fill_frag_descs(struct mv643xx_eth_private *mp, } else mp->tx_skb[tx_index] = NULL; - desc = &mp->p_tx_desc_area[tx_index]; + desc = &mp->tx_desc_area[tx_index]; desc->l4i_chk = 0; desc->byte_cnt = this_frag->size; desc->buf_ptr = dma_map_page(NULL, this_frag->page, @@ -743,7 +743,7 @@ static void tx_submit_descs_for_skb(struct mv643xx_eth_private *mp, cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; tx_index = alloc_tx_desc_index(mp); - desc = &mp->p_tx_desc_area[tx_index]; + desc = &mp->tx_desc_area[tx_index]; if (nr_frags) { tx_fill_frag_descs(mp, skb); @@ -1113,7 +1113,7 @@ static const struct ethtool_ops mv643xx_eth_ethtool_ops = { /* address handling *********************************************************/ -static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *p_addr) +static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) { unsigned int port_num = mp->port_num; unsigned int mac_h; @@ -1122,12 +1122,12 @@ static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *p_addr) mac_h = rdl(mp, MAC_ADDR_HIGH(port_num)); mac_l = rdl(mp, MAC_ADDR_LOW(port_num)); - p_addr[0] = (mac_h >> 24) & 0xff; - p_addr[1] = (mac_h >> 16) & 0xff; - p_addr[2] = (mac_h >> 8) & 0xff; - p_addr[3] = mac_h & 0xff; - p_addr[4] = (mac_l >> 8) & 0xff; - p_addr[5] = mac_l & 0xff; + addr[0] = (mac_h >> 24) & 0xff; + addr[1] = (mac_h >> 16) & 0xff; + addr[2] = (mac_h >> 8) & 0xff; + addr[3] = mac_h & 0xff; + addr[4] = (mac_l >> 8) & 0xff; + addr[5] = mac_l & 0xff; } static void init_mac_tables(struct mv643xx_eth_private *mp) @@ -1163,23 +1163,23 @@ static void set_filter_table_entry(struct mv643xx_eth_private *mp, wrl(mp, table + tbl_offset, table_reg); } -static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *p_addr) +static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr) { unsigned int port_num = mp->port_num; unsigned int mac_h; unsigned int mac_l; int table; - mac_l = (p_addr[4] << 8) | (p_addr[5]); - mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) | - (p_addr[3] << 0); + mac_l = (addr[4] << 8) | (addr[5]); + mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | + (addr[3] << 0); wrl(mp, MAC_ADDR_LOW(port_num), mac_l); wrl(mp, MAC_ADDR_HIGH(port_num), mac_h); /* Accept frames with this address */ table = UNICAST_TABLE(port_num); - set_filter_table_entry(mp, table, p_addr[5] & 0x0f); + set_filter_table_entry(mp, table, addr[5] & 0x0f); } static void mv643xx_eth_update_mac_address(struct net_device *dev) @@ -1201,7 +1201,7 @@ static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) return 0; } -static void mc_addr(struct mv643xx_eth_private *mp, unsigned char *p_addr) +static void mc_addr(struct mv643xx_eth_private *mp, unsigned char *addr) { unsigned int port_num = mp->port_num; unsigned int mac_h; @@ -1212,17 +1212,17 @@ static void mc_addr(struct mv643xx_eth_private *mp, unsigned char *p_addr) int crc[8]; int i; - if ((p_addr[0] == 0x01) && (p_addr[1] == 0x00) && - (p_addr[2] == 0x5E) && (p_addr[3] == 0x00) && (p_addr[4] == 0x00)) { + if ((addr[0] == 0x01) && (addr[1] == 0x00) && + (addr[2] == 0x5E) && (addr[3] == 0x00) && (addr[4] == 0x00)) { table = SPECIAL_MCAST_TABLE(port_num); - set_filter_table_entry(mp, table, p_addr[5]); + set_filter_table_entry(mp, table, addr[5]); return; } /* Calculate CRC-8 out of the given address */ - mac_h = (p_addr[0] << 8) | (p_addr[1]); - mac_l = (p_addr[2] << 24) | (p_addr[3] << 16) | - (p_addr[4] << 8) | (p_addr[5] << 0); + mac_h = (addr[0] << 8) | (addr[1]); + mac_l = (addr[2] << 24) | (addr[3] << 16) | + (addr[4] << 8) | (addr[5] << 0); for (i = 0; i < 32; i++) mac_array[i] = (mac_l >> i) & 0x1; @@ -1372,15 +1372,15 @@ static void ether_init_rx_desc_ring(struct mv643xx_eth_private *mp) int i; /* initialize the next_desc_ptr links in the Rx descriptors ring */ - p_rx_desc = (struct rx_desc *)mp->p_rx_desc_area; + p_rx_desc = (struct rx_desc *)mp->rx_desc_area; for (i = 0; i < rx_desc_num; i++) { p_rx_desc[i].next_desc_ptr = mp->rx_desc_dma + ((i + 1) % rx_desc_num) * sizeof(struct rx_desc); } /* Save Rx desc pointer to driver struct. */ - mp->rx_curr_desc_q = 0; - mp->rx_used_desc_q = 0; + mp->rx_curr_desc = 0; + mp->rx_used_desc = 0; mp->rx_desc_area_size = rx_desc_num * sizeof(struct rx_desc); } @@ -1408,10 +1408,10 @@ static void mv643xx_eth_free_rx_rings(struct net_device *dev) mp->rx_desc_count); /* Free RX ring */ if (mp->rx_sram_size) - iounmap(mp->p_rx_desc_area); + iounmap(mp->rx_desc_area); else dma_free_coherent(NULL, mp->rx_desc_area_size, - mp->p_rx_desc_area, mp->rx_desc_dma); + mp->rx_desc_area, mp->rx_desc_dma); } static void ether_init_tx_desc_ring(struct mv643xx_eth_private *mp) @@ -1421,14 +1421,14 @@ static void ether_init_tx_desc_ring(struct mv643xx_eth_private *mp) int i; /* Initialize the next_desc_ptr links in the Tx descriptors ring */ - p_tx_desc = (struct tx_desc *)mp->p_tx_desc_area; + p_tx_desc = (struct tx_desc *)mp->tx_desc_area; for (i = 0; i < tx_desc_num; i++) { p_tx_desc[i].next_desc_ptr = mp->tx_desc_dma + ((i + 1) % tx_desc_num) * sizeof(struct tx_desc); } - mp->tx_curr_desc_q = 0; - mp->tx_used_desc_q = 0; + mp->tx_curr_desc = 0; + mp->tx_used_desc = 0; mp->tx_desc_area_size = tx_desc_num * sizeof(struct tx_desc); } @@ -1454,8 +1454,8 @@ static int mv643xx_eth_free_tx_descs(struct net_device *dev, int force) return released; } - tx_index = mp->tx_used_desc_q; - desc = &mp->p_tx_desc_area[tx_index]; + tx_index = mp->tx_used_desc; + desc = &mp->tx_desc_area[tx_index]; cmd_sts = desc->cmd_sts; if (!force && (cmd_sts & BUFFER_OWNED_BY_DMA)) { @@ -1463,7 +1463,7 @@ static int mv643xx_eth_free_tx_descs(struct net_device *dev, int force) return released; } - mp->tx_used_desc_q = (tx_index + 1) % mp->tx_ring_size; + mp->tx_used_desc = (tx_index + 1) % mp->tx_ring_size; mp->tx_desc_count--; addr = desc->buf_ptr; @@ -1517,14 +1517,14 @@ static void mv643xx_eth_free_tx_rings(struct net_device *dev) /* Free outstanding skb's on TX ring */ mv643xx_eth_free_all_tx_descs(dev); - BUG_ON(mp->tx_used_desc_q != mp->tx_curr_desc_q); + BUG_ON(mp->tx_used_desc != mp->tx_curr_desc); /* Free TX ring */ if (mp->tx_sram_size) - iounmap(mp->p_tx_desc_area); + iounmap(mp->tx_desc_area); else dma_free_coherent(NULL, mp->tx_desc_area_size, - mp->p_tx_desc_area, mp->tx_desc_dma); + mp->tx_desc_area, mp->tx_desc_dma); } @@ -1663,12 +1663,12 @@ static void port_start(struct net_device *dev) struct ethtool_cmd ethtool_cmd; /* Assignment of Tx CTRP of given queue */ - tx_curr_desc = mp->tx_curr_desc_q; + tx_curr_desc = mp->tx_curr_desc; wrl(mp, TXQ_CURRENT_DESC_PTR(port_num), (u32)((struct tx_desc *)mp->tx_desc_dma + tx_curr_desc)); /* Assignment of Rx CRDP of given queue */ - rx_curr_desc = mp->rx_curr_desc_q; + rx_curr_desc = mp->rx_curr_desc; wrl(mp, RXQ_CURRENT_DESC_PTR(port_num), (u32)((struct rx_desc *)mp->rx_desc_dma + rx_curr_desc)); @@ -1800,22 +1800,22 @@ static int mv643xx_eth_open(struct net_device *dev) mp->tx_desc_area_size = size; if (mp->tx_sram_size) { - mp->p_tx_desc_area = ioremap(mp->tx_sram_addr, + mp->tx_desc_area = ioremap(mp->tx_sram_addr, mp->tx_sram_size); mp->tx_desc_dma = mp->tx_sram_addr; } else - mp->p_tx_desc_area = dma_alloc_coherent(NULL, size, + mp->tx_desc_area = dma_alloc_coherent(NULL, size, &mp->tx_desc_dma, GFP_KERNEL); - if (!mp->p_tx_desc_area) { + if (!mp->tx_desc_area) { printk(KERN_ERR "%s: Cannot allocate Tx Ring (size %d bytes)\n", dev->name, size); err = -ENOMEM; goto out_free_tx_skb; } - BUG_ON((u32) mp->p_tx_desc_area & 0xf); /* check 16-byte alignment */ - memset((void *)mp->p_tx_desc_area, 0, mp->tx_desc_area_size); + BUG_ON((u32) mp->tx_desc_area & 0xf); /* check 16-byte alignment */ + memset((void *)mp->tx_desc_area, 0, mp->tx_desc_area_size); ether_init_tx_desc_ring(mp); @@ -1825,28 +1825,28 @@ static int mv643xx_eth_open(struct net_device *dev) mp->rx_desc_area_size = size; if (mp->rx_sram_size) { - mp->p_rx_desc_area = ioremap(mp->rx_sram_addr, + mp->rx_desc_area = ioremap(mp->rx_sram_addr, mp->rx_sram_size); mp->rx_desc_dma = mp->rx_sram_addr; } else - mp->p_rx_desc_area = dma_alloc_coherent(NULL, size, + mp->rx_desc_area = dma_alloc_coherent(NULL, size, &mp->rx_desc_dma, GFP_KERNEL); - if (!mp->p_rx_desc_area) { + if (!mp->rx_desc_area) { printk(KERN_ERR "%s: Cannot allocate Rx ring (size %d bytes)\n", dev->name, size); printk(KERN_ERR "%s: Freeing previously allocated TX queues...", dev->name); if (mp->rx_sram_size) - iounmap(mp->p_tx_desc_area); + iounmap(mp->tx_desc_area); else dma_free_coherent(NULL, mp->tx_desc_area_size, - mp->p_tx_desc_area, mp->tx_desc_dma); + mp->tx_desc_area, mp->tx_desc_dma); err = -ENOMEM; goto out_free_tx_skb; } - memset((void *)mp->p_rx_desc_area, 0, size); + memset((void *)mp->rx_desc_area, 0, size); ether_init_rx_desc_ring(mp); -- 2.34.1