From 21f581a5366d48d86b9ae86043fc61d44e992c0c Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 28 Aug 2009 14:00:25 +0000 Subject: [PATCH] tg3: Create a new prodring_set structure This patch migrates most of the rx producer ring variables to a new tg3_rx_prodring_set structure and modifies the code accordingly. Signed-off-by: Matt Carlson Signed-off-by: David S. Miller --- drivers/net/tg3.c | 163 ++++++++++++++++++++++++++++-------------------------- drivers/net/tg3.h | 27 +++++---- 2 files changed, 100 insertions(+), 90 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 5d0a1e6e..053d4e8 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -4352,24 +4352,25 @@ static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key, struct sk_buff *skb; dma_addr_t mapping; int skb_size, dest_idx; + struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; src_map = NULL; switch (opaque_key) { case RXD_OPAQUE_RING_STD: dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE; - desc = &tp->rx_std[dest_idx]; - map = &tp->rx_std_buffers[dest_idx]; + desc = &tpr->rx_std[dest_idx]; + map = &tpr->rx_std_buffers[dest_idx]; if (src_idx >= 0) - src_map = &tp->rx_std_buffers[src_idx]; + src_map = &tpr->rx_std_buffers[src_idx]; skb_size = tp->rx_pkt_map_sz; break; case RXD_OPAQUE_RING_JUMBO: dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE; - desc = &tp->rx_jumbo[dest_idx]; - map = &tp->rx_jumbo_buffers[dest_idx]; + desc = &tpr->rx_jmb[dest_idx]; + map = &tpr->rx_jmb_buffers[dest_idx]; if (src_idx >= 0) - src_map = &tp->rx_jumbo_buffers[src_idx]; + src_map = &tpr->rx_jmb_buffers[src_idx]; skb_size = TG3_RX_JMB_MAP_SZ; break; @@ -4414,22 +4415,23 @@ static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key, struct tg3_rx_buffer_desc *src_desc, *dest_desc; struct ring_info *src_map, *dest_map; int dest_idx; + struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; switch (opaque_key) { case RXD_OPAQUE_RING_STD: dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE; - dest_desc = &tp->rx_std[dest_idx]; - dest_map = &tp->rx_std_buffers[dest_idx]; - src_desc = &tp->rx_std[src_idx]; - src_map = &tp->rx_std_buffers[src_idx]; + dest_desc = &tpr->rx_std[dest_idx]; + dest_map = &tpr->rx_std_buffers[dest_idx]; + src_desc = &tpr->rx_std[src_idx]; + src_map = &tpr->rx_std_buffers[src_idx]; break; case RXD_OPAQUE_RING_JUMBO: dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE; - dest_desc = &tp->rx_jumbo[dest_idx]; - dest_map = &tp->rx_jumbo_buffers[dest_idx]; - src_desc = &tp->rx_jumbo[src_idx]; - src_map = &tp->rx_jumbo_buffers[src_idx]; + dest_desc = &tpr->rx_jmb[dest_idx]; + dest_map = &tpr->rx_jmb_buffers[dest_idx]; + src_desc = &tpr->rx_jmb[src_idx]; + src_map = &tpr->rx_jmb_buffers[src_idx]; break; default: @@ -4482,6 +4484,7 @@ static int tg3_rx(struct tg3 *tp, int budget) u32 sw_idx = tp->rx_rcb_ptr; u16 hw_idx; int received; + struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; hw_idx = tp->hw_status->idx[0].rx_producer; /* @@ -4501,20 +4504,18 @@ static int tg3_rx(struct tg3 *tp, int budget) desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK; opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK; if (opaque_key == RXD_OPAQUE_RING_STD) { - dma_addr = pci_unmap_addr(&tp->rx_std_buffers[desc_idx], - mapping); - skb = tp->rx_std_buffers[desc_idx].skb; - post_ptr = &tp->rx_std_ptr; + struct ring_info *ri = &tpr->rx_std_buffers[desc_idx]; + dma_addr = pci_unmap_addr(ri, mapping); + skb = ri->skb; + post_ptr = &tpr->rx_std_ptr; rx_std_posted++; } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) { - dma_addr = pci_unmap_addr(&tp->rx_jumbo_buffers[desc_idx], - mapping); - skb = tp->rx_jumbo_buffers[desc_idx].skb; - post_ptr = &tp->rx_jumbo_ptr; - } - else { + struct ring_info *ri = &tpr->rx_jmb_buffers[desc_idx]; + dma_addr = pci_unmap_addr(ri, mapping); + skb = ri->skb; + post_ptr = &tpr->rx_jmb_ptr; + } else goto next_pkt_nopost; - } work_mask |= opaque_key; @@ -4627,12 +4628,12 @@ next_pkt_nopost: /* Refill RX ring(s). */ if (work_mask & RXD_OPAQUE_RING_STD) { - sw_idx = tp->rx_std_ptr % TG3_RX_RING_SIZE; + sw_idx = tpr->rx_std_ptr % TG3_RX_RING_SIZE; tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW, sw_idx); } if (work_mask & RXD_OPAQUE_RING_JUMBO) { - sw_idx = tp->rx_jumbo_ptr % TG3_RX_JUMBO_RING_SIZE; + sw_idx = tpr->rx_jmb_ptr % TG3_RX_JUMBO_RING_SIZE; tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW, sw_idx); } @@ -5517,13 +5518,14 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu) return err; } -static void tg3_rx_prodring_free(struct tg3 *tp) +static void tg3_rx_prodring_free(struct tg3 *tp, + struct tg3_rx_prodring_set *tpr) { struct ring_info *rxp; int i; for (i = 0; i < TG3_RX_RING_SIZE; i++) { - rxp = &tp->rx_std_buffers[i]; + rxp = &tpr->rx_std_buffers[i]; if (rxp->skb == NULL) continue; @@ -5538,7 +5540,7 @@ static void tg3_rx_prodring_free(struct tg3 *tp) if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) { for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) { - rxp = &tp->rx_jumbo_buffers[i]; + rxp = &tpr->rx_jmb_buffers[i]; if (rxp->skb == NULL) continue; @@ -5560,12 +5562,13 @@ static void tg3_rx_prodring_free(struct tg3 *tp) * end up in the driver. tp->{tx,}lock are held and thus * we may not sleep. */ -static int tg3_rx_prodring_alloc(struct tg3 *tp) +static int tg3_rx_prodring_alloc(struct tg3 *tp, + struct tg3_rx_prodring_set *tpr) { u32 i, rx_pkt_dma_sz; /* Zero out all descriptors. */ - memset(tp->rx_std, 0, TG3_RX_RING_BYTES); + memset(tpr->rx_std, 0, TG3_RX_RING_BYTES); rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ; if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) && @@ -5580,7 +5583,7 @@ static int tg3_rx_prodring_alloc(struct tg3 *tp) for (i = 0; i < TG3_RX_RING_SIZE; i++) { struct tg3_rx_buffer_desc *rxd; - rxd = &tp->rx_std[i]; + rxd = &tpr->rx_std[i]; rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT; rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT); rxd->opaque = (RXD_OPAQUE_RING_STD | @@ -5605,13 +5608,13 @@ static int tg3_rx_prodring_alloc(struct tg3 *tp) if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE)) goto done; - memset(tp->rx_jumbo, 0, TG3_RX_JUMBO_RING_BYTES); + memset(tpr->rx_jmb, 0, TG3_RX_JUMBO_RING_BYTES); if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) { for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) { struct tg3_rx_buffer_desc *rxd; - rxd = &tp->rx_jumbo[i]; + rxd = &tpr->rx_jmb[i]; rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT; rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) | RXD_FLAG_JUMBO; @@ -5639,58 +5642,60 @@ done: return 0; initfail: - tg3_rx_prodring_free(tp); + tg3_rx_prodring_free(tp, tpr); return -ENOMEM; } -static void tg3_rx_prodring_fini(struct tg3 *tp) +static void tg3_rx_prodring_fini(struct tg3 *tp, + struct tg3_rx_prodring_set *tpr) { - kfree(tp->rx_std_buffers); - tp->rx_std_buffers = NULL; - kfree(tp->rx_jumbo_buffers); - tp->rx_jumbo_buffers = NULL; - if (tp->rx_std) { + kfree(tpr->rx_std_buffers); + tpr->rx_std_buffers = NULL; + kfree(tpr->rx_jmb_buffers); + tpr->rx_jmb_buffers = NULL; + if (tpr->rx_std) { pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES, - tp->rx_std, tp->rx_std_mapping); - tp->rx_std = NULL; + tpr->rx_std, tpr->rx_std_mapping); + tpr->rx_std = NULL; } - if (tp->rx_jumbo) { + if (tpr->rx_jmb) { pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES, - tp->rx_jumbo, tp->rx_jumbo_mapping); - tp->rx_jumbo = NULL; + tpr->rx_jmb, tpr->rx_jmb_mapping); + tpr->rx_jmb = NULL; } } -static int tg3_rx_prodring_init(struct tg3 *tp) +static int tg3_rx_prodring_init(struct tg3 *tp, + struct tg3_rx_prodring_set *tpr) { - tp->rx_std_buffers = kzalloc(sizeof(struct ring_info) * - TG3_RX_RING_SIZE, GFP_KERNEL); - if (!tp->rx_std_buffers) + tpr->rx_std_buffers = kzalloc(sizeof(struct ring_info) * + TG3_RX_RING_SIZE, GFP_KERNEL); + if (!tpr->rx_std_buffers) return -ENOMEM; - tp->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES, - &tp->rx_std_mapping); - if (!tp->rx_std) + tpr->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES, + &tpr->rx_std_mapping); + if (!tpr->rx_std) goto err_out; if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) { - tp->rx_jumbo_buffers = kzalloc(sizeof(struct ring_info) * - TG3_RX_JUMBO_RING_SIZE, - GFP_KERNEL); - if (!tp->rx_jumbo_buffers) + tpr->rx_jmb_buffers = kzalloc(sizeof(struct ring_info) * + TG3_RX_JUMBO_RING_SIZE, + GFP_KERNEL); + if (!tpr->rx_jmb_buffers) goto err_out; - tp->rx_jumbo = pci_alloc_consistent(tp->pdev, - TG3_RX_JUMBO_RING_BYTES, - &tp->rx_jumbo_mapping); - if (!tp->rx_jumbo) + tpr->rx_jmb = pci_alloc_consistent(tp->pdev, + TG3_RX_JUMBO_RING_BYTES, + &tpr->rx_jmb_mapping); + if (!tpr->rx_jmb) goto err_out; } return 0; err_out: - tg3_rx_prodring_fini(tp); + tg3_rx_prodring_fini(tp, tpr); return -ENOMEM; } @@ -5726,7 +5731,7 @@ static void tg3_free_rings(struct tg3 *tp) dev_kfree_skb_any(skb); } - tg3_rx_prodring_free(tp); + tg3_rx_prodring_free(tp, &tp->prodring[0]); } /* Initialize tx/rx rings for packet processing. @@ -5745,7 +5750,7 @@ static int tg3_init_rings(struct tg3 *tp) memset(tp->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp)); memset(tp->tx_ring, 0, TG3_TX_RING_BYTES); - return tg3_rx_prodring_alloc(tp); + return tg3_rx_prodring_alloc(tp, &tp->prodring[0]); } /* @@ -5776,7 +5781,7 @@ static void tg3_free_consistent(struct tg3 *tp) tp->hw_stats, tp->stats_mapping); tp->hw_stats = NULL; } - tg3_rx_prodring_fini(tp); + tg3_rx_prodring_fini(tp, &tp->prodring[0]); } /* @@ -5785,7 +5790,7 @@ static void tg3_free_consistent(struct tg3 *tp) */ static int tg3_alloc_consistent(struct tg3 *tp) { - if (tg3_rx_prodring_init(tp)) + if (tg3_rx_prodring_init(tp, &tp->prodring[0])) return -ENOMEM; tp->tx_buffers = kzalloc(sizeof(struct tx_ring_info) * @@ -6794,6 +6799,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) { u32 val, rdmac_mode; int i, err, limit; + struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; tg3_disable_ints(tp); @@ -7022,9 +7028,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) * configurable. */ tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH, - ((u64) tp->rx_std_mapping >> 32)); + ((u64) tpr->rx_std_mapping >> 32)); tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW, - ((u64) tp->rx_std_mapping & 0xffffffff)); + ((u64) tpr->rx_std_mapping & 0xffffffff)); tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR, NIC_SRAM_RX_BUFFER_DESC); @@ -7043,9 +7049,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) { tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH, - ((u64) tp->rx_jumbo_mapping >> 32)); + ((u64) tpr->rx_jmb_mapping >> 32)); tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW, - ((u64) tp->rx_jumbo_mapping & 0xffffffff)); + ((u64) tpr->rx_jmb_mapping & 0xffffffff)); tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS, RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT); tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR, @@ -7102,14 +7108,14 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) BDINFO_FLAGS_MAXLEN_SHIFT), 0); - tp->rx_std_ptr = tp->rx_pending; + tpr->rx_std_ptr = tp->rx_pending; tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW, - tp->rx_std_ptr); + tpr->rx_std_ptr); - tp->rx_jumbo_ptr = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ? - tp->rx_jumbo_pending : 0; + tpr->rx_jmb_ptr = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ? + tp->rx_jumbo_pending : 0; tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW, - tp->rx_jumbo_ptr); + tpr->rx_jmb_ptr); /* Initialize MAC address and backoff seed. */ __tg3_set_mac_addr(tp, 0); @@ -9815,6 +9821,7 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode) dma_addr_t map; int num_pkts, tx_len, rx_len, i, err; struct tg3_rx_buffer_desc *desc; + struct tg3_rx_prodring_set *tpr = &tp->prodring[0]; if (loopback_mode == TG3_MAC_LOOPBACK) { /* HW errata - mac loopback fails in some cases on 5780. @@ -9949,9 +9956,9 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode) if (rx_len != tx_len) goto out; - rx_skb = tp->rx_std_buffers[desc_idx].skb; + rx_skb = tpr->rx_std_buffers[desc_idx].skb; - map = pci_unmap_addr(&tp->rx_std_buffers[desc_idx], mapping); + map = pci_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping); pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE); for (i = 14; i < tx_len; i++) { diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index d029b4b..7a27cff 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2476,6 +2476,17 @@ struct tg3_ethtool_stats { u64 nic_tx_threshold_hit; }; +struct tg3_rx_prodring_set { + u32 rx_std_ptr; + u32 rx_jmb_ptr; + struct tg3_rx_buffer_desc *rx_std; + struct tg3_rx_buffer_desc *rx_jmb; + struct ring_info *rx_std_buffers; + struct ring_info *rx_jmb_buffers; + dma_addr_t rx_std_mapping; + dma_addr_t rx_jmb_mapping; +}; + struct tg3 { /* begin "general, frequently-used members" cacheline section */ @@ -2551,27 +2562,19 @@ struct tg3 { void (*write32_rx_mbox) (struct tg3 *, u32, u32); u32 rx_rcb_ptr; - u32 rx_std_ptr; - u32 rx_jumbo_ptr; u32 rx_pending; u32 rx_jumbo_pending; + u32 rx_std_max_post; + u32 rx_pkt_map_sz; #if TG3_VLAN_TAG_USED struct vlan_group *vlgrp; #endif - struct tg3_rx_buffer_desc *rx_std; - struct ring_info *rx_std_buffers; - dma_addr_t rx_std_mapping; - u32 rx_std_max_post; - - struct tg3_rx_buffer_desc *rx_jumbo; - struct ring_info *rx_jumbo_buffers; - dma_addr_t rx_jumbo_mapping; - struct tg3_rx_buffer_desc *rx_rcb; dma_addr_t rx_rcb_mapping; - u32 rx_pkt_map_sz; + struct tg3_rx_prodring_set prodring[1]; + /* begin "everything else" cacheline(s) section */ struct net_device_stats net_stats; -- 2.7.4