From b41477f32a5aaf39a77741c0138b16f16a636c70 Mon Sep 17 00:00:00 2001 From: Ananda Raju Date: Mon, 24 Jul 2006 19:52:49 -0400 Subject: [PATCH] s2io driver bug fixes #1 This patch contains some of the bug fixes and enhancements done to s2io driver. Following are the brief description of changes 1. Introduced macro "S2IO_PARM_INT" for declaring integer load parameter 2. UDP_RR test failure, memset txdl after Tx completion 3. PXE boot may leave adapter in unknown state so do reset in probe. 4. Add Tx completion code in netpoll 5. In s2io_vpd_read() move array vpd_data[] to pointer, saves stack memory 6. Fix bug in ethtool online test Signed-off-by: Ananda Raju Signed-off-by: Jeff Garzik --- drivers/net/s2io.c | 158 +++++++++++++++++++++++++++-------------------------- 1 file changed, 80 insertions(+), 78 deletions(-) (limited to 'drivers/net/s2io.c') diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index e1fe3a0a7b0..4a4e38be80a 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -370,38 +370,50 @@ static const u64 fix_mac[] = { END_SIGN }; +MODULE_AUTHOR("Raghavendra Koushik "); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + + /* Module Loadable parameters. */ -static unsigned int tx_fifo_num = 1; -static unsigned int tx_fifo_len[MAX_TX_FIFOS] = - {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; -static unsigned int rx_ring_num = 1; -static unsigned int rx_ring_sz[MAX_RX_RINGS] = - {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; -static unsigned int rts_frm_len[MAX_RX_RINGS] = - {[0 ...(MAX_RX_RINGS - 1)] = 0 }; -static unsigned int rx_ring_mode = 1; -static unsigned int use_continuous_tx_intrs = 1; -static unsigned int rmac_pause_time = 0x100; -static unsigned int mc_pause_threshold_q0q3 = 187; -static unsigned int mc_pause_threshold_q4q7 = 187; -static unsigned int shared_splits; -static unsigned int tmac_util_period = 5; -static unsigned int rmac_util_period = 5; -static unsigned int bimodal = 0; -static unsigned int l3l4hdr_size = 128; -#ifndef CONFIG_S2IO_NAPI -static unsigned int indicate_max_pkts; -#endif +S2IO_PARM_INT(tx_fifo_num, 1); +S2IO_PARM_INT(rx_ring_num, 1); + + +S2IO_PARM_INT(rx_ring_mode, 1); +S2IO_PARM_INT(use_continuous_tx_intrs, 1); +S2IO_PARM_INT(rmac_pause_time, 0x100); +S2IO_PARM_INT(mc_pause_threshold_q0q3, 187); +S2IO_PARM_INT(mc_pause_threshold_q4q7, 187); +S2IO_PARM_INT(shared_splits, 0); +S2IO_PARM_INT(tmac_util_period, 5); +S2IO_PARM_INT(rmac_util_period, 5); +S2IO_PARM_INT(bimodal, 0); +S2IO_PARM_INT(l3l4hdr_size, 128); /* Frequency of Rx desc syncs expressed as power of 2 */ -static unsigned int rxsync_frequency = 3; +S2IO_PARM_INT(rxsync_frequency, 3); /* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */ -static unsigned int intr_type = 0; +S2IO_PARM_INT(intr_type, 0); /* Large receive offload feature */ -static unsigned int lro = 0; +S2IO_PARM_INT(lro, 0); /* Max pkts to be aggregated by LRO at one time. If not specified, * aggregation happens until we hit max IP pkt size(64K) */ -static unsigned int lro_max_pkts = 0xFFFF; +S2IO_PARM_INT(lro_max_pkts, 0xFFFF); +#ifndef CONFIG_S2IO_NAPI +S2IO_PARM_INT(indicate_max_pkts, 0); +#endif + +static unsigned int tx_fifo_len[MAX_TX_FIFOS] = + {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN}; +static unsigned int rx_ring_sz[MAX_RX_RINGS] = + {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT}; +static unsigned int rts_frm_len[MAX_RX_RINGS] = + {[0 ...(MAX_RX_RINGS - 1)] = 0 }; + +module_param_array(tx_fifo_len, uint, NULL, 0); +module_param_array(rx_ring_sz, uint, NULL, 0); +module_param_array(rts_frm_len, uint, NULL, 0); /* * S2IO device table. @@ -464,10 +476,9 @@ static int init_shared_mem(struct s2io_nic *nic) size += config->tx_cfg[i].fifo_len; } if (size > MAX_AVAILABLE_TXDS) { - DBG_PRINT(ERR_DBG, "%s: Requested TxDs too high, ", - __FUNCTION__); + DBG_PRINT(ERR_DBG, "s2io: Requested TxDs too high, "); DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size); - return FAILURE; + return -EINVAL; } lst_size = (sizeof(TxD_t) * config->max_txds); @@ -547,6 +558,7 @@ static int init_shared_mem(struct s2io_nic *nic) nic->ufo_in_band_v = kmalloc((sizeof(u64) * size), GFP_KERNEL); if (!nic->ufo_in_band_v) return -ENOMEM; + memset(nic->ufo_in_band_v, 0, size); /* Allocation and initialization of RXDs in Rings */ size = 0; @@ -1213,7 +1225,7 @@ static int init_nic(struct s2io_nic *nic) break; } - /* Enable Tx FIFO partition 0. */ + /* Enable all configured Tx FIFO partitions */ val64 = readq(&bar0->tx_fifo_partition_0); val64 |= (TX_FIFO_PARTITION_EN); writeq(val64, &bar0->tx_fifo_partition_0); @@ -1650,7 +1662,7 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag) writeq(temp64, &bar0->general_int_mask); /* * If Hercules adapter enable GPIO otherwise - * disabled all PCIX, Flash, MDIO, IIC and GPIO + * disable all PCIX, Flash, MDIO, IIC and GPIO * interrupts for now. * TODO */ @@ -2119,7 +2131,7 @@ static struct sk_buff *s2io_txdl_getskb(fifo_info_t *fifo_data, TxD_t *txdlp, in frag->size, PCI_DMA_TODEVICE); } } - txdlp->Host_Control = 0; + memset(txdlp,0, (sizeof(TxD_t) * fifo_data->max_txds)); return(skb); } @@ -2614,23 +2626,23 @@ no_rx: } #endif +#ifdef CONFIG_NET_POLL_CONTROLLER /** - * s2io_netpoll - Rx interrupt service handler for netpoll support + * s2io_netpoll - netpoll event handler entry point * @dev : pointer to the device structure. * Description: - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. + * This function will be called by upper layer to check for events on the + * interface in situations where interrupts are disabled. It is used for + * specific in-kernel networking tasks, such as remote consoles and kernel + * debugging over the network (example netdump in RedHat). */ - -#ifdef CONFIG_NET_POLL_CONTROLLER static void s2io_netpoll(struct net_device *dev) { nic_t *nic = dev->priv; mac_info_t *mac_control; struct config_param *config; XENA_dev_config_t __iomem *bar0 = nic->bar0; - u64 val64; + u64 val64 = 0xFFFFFFFFFFFFFFFFULL; int i; disable_irq(dev->irq); @@ -2639,9 +2651,17 @@ static void s2io_netpoll(struct net_device *dev) mac_control = &nic->mac_control; config = &nic->config; - val64 = readq(&bar0->rx_traffic_int); writeq(val64, &bar0->rx_traffic_int); + writeq(val64, &bar0->tx_traffic_int); + + /* we need to free up the transmitted skbufs or else netpoll will + * run out of skbs and will fail and eventually netpoll application such + * as netdump will fail. + */ + for (i = 0; i < config->tx_fifo_num; i++) + tx_intr_handler(&mac_control->fifos[i]); + /* check for received packet and indicate up to network */ for (i = 0; i < config->rx_ring_num; i++) rx_intr_handler(&mac_control->rings[i]); @@ -3327,7 +3347,7 @@ static void s2io_reset(nic_t * sp) /* Clear certain PCI/PCI-X fields after reset */ if (sp->device_type == XFRAME_II_DEVICE) { - /* Clear parity err detect bit */ + /* Clear "detected parity error" bit */ pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000); /* Clearing PCIX Ecc status register */ @@ -4942,7 +4962,8 @@ static int write_eeprom(nic_t * sp, int off, u64 data, int cnt) } static void s2io_vpd_read(nic_t *nic) { - u8 vpd_data[256],data; + u8 *vpd_data; + u8 data; int i=0, cnt, fail = 0; int vpd_addr = 0x80; @@ -4955,6 +4976,10 @@ static void s2io_vpd_read(nic_t *nic) vpd_addr = 0x50; } + vpd_data = kmalloc(256, GFP_KERNEL); + if (!vpd_data) + return; + for (i = 0; i < 256; i +=4 ) { pci_write_config_byte(nic->pdev, (vpd_addr + 2), i); pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data); @@ -4977,6 +5002,7 @@ static void s2io_vpd_read(nic_t *nic) memset(nic->product_name, 0, vpd_data[1]); memcpy(nic->product_name, &vpd_data[3], vpd_data[1]); } + kfree(vpd_data); } /** @@ -5295,7 +5321,7 @@ static int s2io_link_test(nic_t * sp, uint64_t * data) else *data = 0; - return 0; + return *data; } /** @@ -6337,7 +6363,7 @@ static int s2io_card_up(nic_t * sp) s2io_set_multicast(dev); if (sp->lro) { - /* Initialize max aggregatable pkts based on MTU */ + /* Initialize max aggregatable pkts per session based on MTU */ sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu; /* Check if we can use(if specified) user provided value */ if (lro_max_pkts < sp->lro_max_aggr_per_sess) @@ -6438,7 +6464,7 @@ static void s2io_tx_watchdog(struct net_device *dev) * @cksum : FCS checksum of the frame. * @ring_no : the ring from which this RxD was extracted. * Description: - * This function is called by the Tx interrupt serivce routine to perform + * This function is called by the Rx interrupt serivce routine to perform * some OS related operations on the SKB before passing it to the upper * layers. It mainly checks if the checksum is OK, if so adds it to the * SKBs cksum variable, increments the Rx packet count and passes the SKB @@ -6698,33 +6724,6 @@ static void s2io_init_pci(nic_t * sp) pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd); } -MODULE_AUTHOR("Raghavendra Koushik "); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VERSION); - -module_param(tx_fifo_num, int, 0); -module_param(rx_ring_num, int, 0); -module_param(rx_ring_mode, int, 0); -module_param_array(tx_fifo_len, uint, NULL, 0); -module_param_array(rx_ring_sz, uint, NULL, 0); -module_param_array(rts_frm_len, uint, NULL, 0); -module_param(use_continuous_tx_intrs, int, 1); -module_param(rmac_pause_time, int, 0); -module_param(mc_pause_threshold_q0q3, int, 0); -module_param(mc_pause_threshold_q4q7, int, 0); -module_param(shared_splits, int, 0); -module_param(tmac_util_period, int, 0); -module_param(rmac_util_period, int, 0); -module_param(bimodal, bool, 0); -module_param(l3l4hdr_size, int , 0); -#ifndef CONFIG_S2IO_NAPI -module_param(indicate_max_pkts, int, 0); -#endif -module_param(rxsync_frequency, int, 0); -module_param(intr_type, int, 0); -module_param(lro, int, 0); -module_param(lro_max_pkts, int, 0); - static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) { if ( tx_fifo_num > 8) { @@ -6832,8 +6831,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) } if (dev_intr_type != MSI_X) { if (pci_request_regions(pdev, s2io_driver_name)) { - DBG_PRINT(ERR_DBG, "Request Regions failed\n"), - pci_disable_device(pdev); + DBG_PRINT(ERR_DBG, "Request Regions failed\n"); + pci_disable_device(pdev); return -ENODEV; } } @@ -6957,7 +6956,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) /* initialize the shared memory used by the NIC and the host */ if (init_shared_mem(sp)) { DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", - __FUNCTION__); + dev->name); ret = -ENOMEM; goto mem_alloc_failed; } @@ -7094,6 +7093,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) dev->addr_len = ETH_ALEN; memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN); + /* reset Nic and bring it to known state */ + s2io_reset(sp); + /* * Initialize the tasklet status and link state flags * and the card state parameter @@ -7131,11 +7133,11 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) goto register_failed; } s2io_vpd_read(sp); - DBG_PRINT(ERR_DBG, "%s: Neterion %s",dev->name, sp->product_name); - DBG_PRINT(ERR_DBG, "(rev %d), Driver version %s\n", - get_xena_rev_id(sp->pdev), - s2io_driver_version); DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2005 Neterion Inc.\n"); + DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name, + sp->product_name, get_xena_rev_id(sp->pdev)); + DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name, + s2io_driver_version); DBG_PRINT(ERR_DBG, "%s: MAC ADDR: " "%02x:%02x:%02x:%02x:%02x:%02x\n", dev->name, sp->def_mac_addr[0].mac_addr[0], -- cgit From 75c30b1368faaa9c740536b91a15a33aab62f30b Mon Sep 17 00:00:00 2001 From: Ananda Raju Date: Mon, 24 Jul 2006 19:55:09 -0400 Subject: [PATCH] s2io driver bug fixes #2 This patch contains some of the bug fixes and enhancements done to s2io driver. Following are the brief description of changes 1. code cleanup to handle gso modification better 2. Move repeated code in rx path, to a common function s2io_chk_rx_buffers() 3. Bug fix in MSI interrupt 4. clear statistics when card is down 5. Avoid linked list traversing in lro aggregation. 6. Use pci_dma_sync_single_for_cpu for buffer0 in case of 2/3 buffer mode. 7. ethtool tso get/set functions to set clear NETIF_F_TSO6 8. Stop LRO aggregation when we receive ECN notification Signed-off-by: Ananda Raju Signed-off-by: Jeff Garzik --- drivers/net/s2io.c | 228 ++++++++++++++++++++++------------------------------- 1 file changed, 93 insertions(+), 135 deletions(-) (limited to 'drivers/net/s2io.c') diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 4a4e38be80a..132ed32bce1 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -76,7 +76,7 @@ #include "s2io.h" #include "s2io-regs.h" -#define DRV_VERSION "2.0.14.2" +#define DRV_VERSION "2.0.15.2" /* S2io Driver name & version. */ static char s2io_driver_name[] = "Neterion"; @@ -2383,9 +2383,14 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) skb->data = (void *) (unsigned long)tmp; skb->tail = (void *) (unsigned long)tmp; - ((RxD3_t*)rxdp)->Buffer0_ptr = - pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, + if (!(((RxD3_t*)rxdp)->Buffer0_ptr)) + ((RxD3_t*)rxdp)->Buffer0_ptr = + pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); + else + pci_dma_sync_single_for_device(nic->pdev, + (dma_addr_t) ((RxD3_t*)rxdp)->Buffer0_ptr, + BUF0_LEN, PCI_DMA_FROMDEVICE); rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); if (nic->rxd_mode == RXD_MODE_3B) { /* Two buffer mode */ @@ -2398,10 +2403,13 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) (nic->pdev, skb->data, dev->mtu + 4, PCI_DMA_FROMDEVICE); - /* Buffer-1 will be dummy buffer not used */ - ((RxD3_t*)rxdp)->Buffer1_ptr = - pci_map_single(nic->pdev, ba->ba_1, BUF1_LEN, - PCI_DMA_FROMDEVICE); + /* Buffer-1 will be dummy buffer. Not used */ + if (!(((RxD3_t*)rxdp)->Buffer1_ptr)) { + ((RxD3_t*)rxdp)->Buffer1_ptr = + pci_map_single(nic->pdev, + ba->ba_1, BUF1_LEN, + PCI_DMA_FROMDEVICE); + } rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); rxdp->Control_2 |= SET_BUFFER2_SIZE_3 (dev->mtu + 4); @@ -2728,7 +2736,7 @@ static void rx_intr_handler(ring_info_t *ring_data) /* If your are next to put index then it's FIFO full condition */ if ((get_block == put_block) && (get_info.offset + 1) == put_info.offset) { - DBG_PRINT(ERR_DBG, "%s: Ring Full\n",dev->name); + DBG_PRINT(INTR_DBG, "%s: Ring Full\n",dev->name); break; } skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control); @@ -2748,18 +2756,15 @@ static void rx_intr_handler(ring_info_t *ring_data) HEADER_SNAP_SIZE, PCI_DMA_FROMDEVICE); } else if (nic->rxd_mode == RXD_MODE_3B) { - pci_unmap_single(nic->pdev, (dma_addr_t) + pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); - pci_unmap_single(nic->pdev, (dma_addr_t) - ((RxD3_t*)rxdp)->Buffer1_ptr, - BUF1_LEN, PCI_DMA_FROMDEVICE); pci_unmap_single(nic->pdev, (dma_addr_t) ((RxD3_t*)rxdp)->Buffer2_ptr, dev->mtu + 4, PCI_DMA_FROMDEVICE); } else { - pci_unmap_single(nic->pdev, (dma_addr_t) + pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); pci_unmap_single(nic->pdev, (dma_addr_t) @@ -3548,7 +3553,7 @@ static void restore_xmsi_data(nic_t *nic) u64 val64; int i; - for (i=0; i< nic->avail_msix_vectors; i++) { + for (i=0; i < MAX_REQUESTED_MSI_X; i++) { writeq(nic->msix_info[i].addr, &bar0->xmsi_address); writeq(nic->msix_info[i].data, &bar0->xmsi_data); val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6)); @@ -3567,7 +3572,7 @@ static void store_xmsi_data(nic_t *nic) int i; /* Store and display */ - for (i=0; i< nic->avail_msix_vectors; i++) { + for (i=0; i < MAX_REQUESTED_MSI_X; i++) { val64 = (BIT(15) | vBIT(i, 26, 6)); writeq(val64, &bar0->xmsi_access); if (wait_for_msix_trans(nic, i)) { @@ -3828,13 +3833,11 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) TxD_t *txdp; TxFIFO_element_t __iomem *tx_fifo; unsigned long flags; -#ifdef NETIF_F_TSO - int mss; -#endif u16 vlan_tag = 0; int vlan_priority = 0; mac_info_t *mac_control; struct config_param *config; + int offload_type; mac_control = &sp->mac_control; config = &sp->config; @@ -3882,13 +3885,11 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } - txdp->Control_1 = 0; - txdp->Control_2 = 0; + offload_type = s2io_offload_type(skb); #ifdef NETIF_F_TSO - mss = skb_shinfo(skb)->gso_size; - if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { + if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { txdp->Control_1 |= TXD_TCP_LSO_EN; - txdp->Control_1 |= TXD_TCP_LSO_MSS(mss); + txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb)); } #endif if (skb->ip_summed == CHECKSUM_HW) { @@ -3906,10 +3907,10 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) } frg_len = skb->len - skb->data_len; - if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) { + if (offload_type == SKB_GSO_UDP) { int ufo_size; - ufo_size = skb_shinfo(skb)->gso_size; + ufo_size = s2io_udp_mss(skb); ufo_size &= ~7; txdp->Control_1 |= TXD_UFO_EN; txdp->Control_1 |= TXD_UFO_MSS(ufo_size); @@ -3926,16 +3927,13 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) sp->ufo_in_band_v, sizeof(u64), PCI_DMA_TODEVICE); txdp++; - txdp->Control_1 = 0; - txdp->Control_2 = 0; } txdp->Buffer_Pointer = pci_map_single (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); txdp->Host_Control = (unsigned long) skb; txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); - - if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) + if (offload_type == SKB_GSO_UDP) txdp->Control_1 |= TXD_UFO_EN; frg_cnt = skb_shinfo(skb)->nr_frags; @@ -3950,12 +3948,12 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) (sp->pdev, frag->page, frag->page_offset, frag->size, PCI_DMA_TODEVICE); txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size); - if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) + if (offload_type == SKB_GSO_UDP) txdp->Control_1 |= TXD_UFO_EN; } txdp->Control_1 |= TXD_GATHER_CODE_LAST; - if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) + if (offload_type == SKB_GSO_UDP) frg_cnt++; /* as Txd0 was used for inband header */ tx_fifo = mac_control->tx_FIFO_start[queue]; @@ -3964,13 +3962,9 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST | TX_FIFO_LAST_LIST); - -#ifdef NETIF_F_TSO - if (mss) - val64 |= TX_FIFO_SPECIAL_FUNC; -#endif - if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) + if (offload_type) val64 |= TX_FIFO_SPECIAL_FUNC; + writeq(val64, &tx_fifo->List_Control); mmiowb(); @@ -4004,13 +3998,41 @@ s2io_alarm_handle(unsigned long data) mod_timer(&sp->alarm_timer, jiffies + HZ / 2); } +static int s2io_chk_rx_buffers(nic_t *sp, int rng_n) +{ + int rxb_size, level; + + if (!sp->lro) { + rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); + level = rx_buffer_level(sp, rxb_size, rng_n); + + if ((level == PANIC) && (!TASKLET_IN_USE)) { + int ret; + DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); + DBG_PRINT(INTR_DBG, "PANIC levels\n"); + if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { + DBG_PRINT(ERR_DBG, "Out of memory in %s", + __FUNCTION__); + clear_bit(0, (&sp->tasklet_status)); + return -1; + } + clear_bit(0, (&sp->tasklet_status)); + } else if (level == LOW) + tasklet_schedule(&sp->task); + + } else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { + DBG_PRINT(ERR_DBG, "%s:Out of memory", sp->dev->name); + DBG_PRINT(ERR_DBG, " in Rx Intr!!\n"); + } + return 0; +} + static irqreturn_t s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = (struct net_device *) dev_id; nic_t *sp = dev->priv; int i; - int ret; mac_info_t *mac_control; struct config_param *config; @@ -4032,35 +4054,8 @@ s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs) * reallocate the buffers from the interrupt handler itself, * else schedule a tasklet to reallocate the buffers. */ - for (i = 0; i < config->rx_ring_num; i++) { - if (!sp->lro) { - int rxb_size = atomic_read(&sp->rx_bufs_left[i]); - int level = rx_buffer_level(sp, rxb_size, i); - - if ((level == PANIC) && (!TASKLET_IN_USE)) { - DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", - dev->name); - DBG_PRINT(INTR_DBG, "PANIC levels\n"); - if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "%s:Out of memory", - dev->name); - DBG_PRINT(ERR_DBG, " in ISR!!\n"); - clear_bit(0, (&sp->tasklet_status)); - atomic_dec(&sp->isr_cnt); - return IRQ_HANDLED; - } - clear_bit(0, (&sp->tasklet_status)); - } else if (level == LOW) { - tasklet_schedule(&sp->task); - } - } - else if (fill_rx_buffers(sp, i) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "%s:Out of memory", - dev->name); - DBG_PRINT(ERR_DBG, " in Rx Intr!!\n"); - break; - } - } + for (i = 0; i < config->rx_ring_num; i++) + s2io_chk_rx_buffers(sp, i); atomic_dec(&sp->isr_cnt); return IRQ_HANDLED; @@ -4071,39 +4066,13 @@ s2io_msix_ring_handle(int irq, void *dev_id, struct pt_regs *regs) { ring_info_t *ring = (ring_info_t *)dev_id; nic_t *sp = ring->nic; - struct net_device *dev = (struct net_device *) dev_id; - int rxb_size, level, rng_n; atomic_inc(&sp->isr_cnt); - rx_intr_handler(ring); - rng_n = ring->ring_no; - if (!sp->lro) { - rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]); - level = rx_buffer_level(sp, rxb_size, rng_n); - - if ((level == PANIC) && (!TASKLET_IN_USE)) { - int ret; - DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__); - DBG_PRINT(INTR_DBG, "PANIC levels\n"); - if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "Out of memory in %s", - __FUNCTION__); - clear_bit(0, (&sp->tasklet_status)); - return IRQ_HANDLED; - } - clear_bit(0, (&sp->tasklet_status)); - } else if (level == LOW) { - tasklet_schedule(&sp->task); - } - } - else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); - DBG_PRINT(ERR_DBG, " in Rx Intr!!\n"); - } + rx_intr_handler(ring); + s2io_chk_rx_buffers(sp, ring->ring_no); atomic_dec(&sp->isr_cnt); - return IRQ_HANDLED; } @@ -4268,37 +4237,8 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs) * else schedule a tasklet to reallocate the buffers. */ #ifndef CONFIG_S2IO_NAPI - for (i = 0; i < config->rx_ring_num; i++) { - if (!sp->lro) { - int ret; - int rxb_size = atomic_read(&sp->rx_bufs_left[i]); - int level = rx_buffer_level(sp, rxb_size, i); - - if ((level == PANIC) && (!TASKLET_IN_USE)) { - DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", - dev->name); - DBG_PRINT(INTR_DBG, "PANIC levels\n"); - if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "%s:Out of memory", - dev->name); - DBG_PRINT(ERR_DBG, " in ISR!!\n"); - clear_bit(0, (&sp->tasklet_status)); - atomic_dec(&sp->isr_cnt); - writeq(org_mask, &bar0->general_int_mask); - return IRQ_HANDLED; - } - clear_bit(0, (&sp->tasklet_status)); - } else if (level == LOW) { - tasklet_schedule(&sp->task); - } - } - else if (fill_rx_buffers(sp, i) == -ENOMEM) { - DBG_PRINT(ERR_DBG, "%s:Out of memory", - dev->name); - DBG_PRINT(ERR_DBG, " in Rx intr!!\n"); - break; - } - } + for (i = 0; i < config->rx_ring_num; i++) + s2io_chk_rx_buffers(sp, i); #endif writeq(org_mask, &bar0->general_int_mask); atomic_dec(&sp->isr_cnt); @@ -4328,6 +4268,8 @@ static void s2io_updt_stats(nic_t *sp) if (cnt == 5) break; /* Updt failed */ } while(1); + } else { + memset(sp->mac_control.stats_info, 0, sizeof(StatInfo_t)); } } @@ -5779,6 +5721,19 @@ static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data) return 0; } +static u32 s2io_ethtool_op_get_tso(struct net_device *dev) +{ + return (dev->features & NETIF_F_TSO) != 0; +} +static int s2io_ethtool_op_set_tso(struct net_device *dev, u32 data) +{ + if (data) + dev->features |= (NETIF_F_TSO | NETIF_F_TSO6); + else + dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); + + return 0; +} static struct ethtool_ops netdev_ethtool_ops = { .get_settings = s2io_ethtool_gset, @@ -5799,8 +5754,8 @@ static struct ethtool_ops netdev_ethtool_ops = { .get_sg = ethtool_op_get_sg, .set_sg = ethtool_op_set_sg, #ifdef NETIF_F_TSO - .get_tso = ethtool_op_get_tso, - .set_tso = ethtool_op_set_tso, + .get_tso = s2io_ethtool_op_get_tso, + .set_tso = s2io_ethtool_op_set_tso, #endif .get_ufo = ethtool_op_get_ufo, .set_ufo = ethtool_op_set_ufo, @@ -7438,8 +7393,13 @@ static int verify_l3_l4_lro_capable(lro_t *l_lro, struct iphdr *ip, if (ip->ihl != 5) /* IP has options */ return -1; + /* If we see CE codepoint in IP header, packet is not mergeable */ + if (INET_ECN_is_ce(ipv4_get_dsfield(ip))) + return -1; + + /* If we see ECE or CWR flags in TCP header, packet is not mergeable */ if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin || - !tcp->ack) { + tcp->ece || tcp->cwr || !tcp->ack) { /* * Currently recognize only the ack control word and * any other control field being set would result in @@ -7593,18 +7553,16 @@ static void queue_rx_frame(struct sk_buff *skb) static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb, u32 tcp_len) { - struct sk_buff *tmp, *first = lro->parent; + struct sk_buff *first = lro->parent; first->len += tcp_len; first->data_len = lro->frags_len; skb_pull(skb, (skb->len - tcp_len)); - if ((tmp = skb_shinfo(first)->frag_list)) { - while (tmp->next) - tmp = tmp->next; - tmp->next = skb; - } + if (skb_shinfo(first)->frag_list) + lro->last_frag->next = skb; else skb_shinfo(first)->frag_list = skb; + lro->last_frag = skb; sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++; return; } -- cgit