diff options
Diffstat (limited to 'drivers/net/ethernet/ibm')
| -rw-r--r-- | drivers/net/ethernet/ibm/ehea/ehea_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/core.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/phy.c | 26 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 478 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.h | 6 |
5 files changed, 434 insertions, 89 deletions
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 2a0dc127d..54efa9a51 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -1169,16 +1169,15 @@ static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); port = ehea_get_port(adapter, portnum); + if (!port) { + netdev_err(NULL, "unknown portnum %x\n", portnum); + return; + } dev = port->netdev; switch (ec) { case EHEA_EC_PORTSTATE_CHG: /* port state change */ - if (!port) { - netdev_err(dev, "unknown portnum %x\n", portnum); - break; - } - if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { if (!netif_carrier_ok(dev)) { ret = ehea_sense_port_attr(port); diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 5d7db6c01..4c9771d57 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -301,7 +301,7 @@ static inline void emac_netif_stop(struct emac_instance *dev) dev->no_mcast = 1; netif_addr_unlock(dev->ndev); netif_tx_unlock_bh(dev->ndev); - dev->ndev->trans_start = jiffies; /* prevent tx timeout */ + netif_trans_update(dev->ndev); /* prevent tx timeout */ mal_poll_disable(dev->mal, &dev->commac); netif_tx_disable(dev->ndev); } @@ -1377,7 +1377,7 @@ static inline int emac_xmit_finish(struct emac_instance *dev, int len) DBG2(dev, "stopped TX queue" NL); } - ndev->trans_start = jiffies; + netif_trans_update(ndev); ++dev->stats.tx_packets; dev->stats.tx_bytes += len; diff --git a/drivers/net/ethernet/ibm/emac/phy.c b/drivers/net/ethernet/ibm/emac/phy.c index d3b9d1033..5b88cc690 100644 --- a/drivers/net/ethernet/ibm/emac/phy.c +++ b/drivers/net/ethernet/ibm/emac/phy.c @@ -470,12 +470,38 @@ static struct mii_phy_def m88e1112_phy_def = { .ops = &m88e1112_phy_ops, }; +static int ar8035_init(struct mii_phy *phy) +{ + phy_write(phy, 0x1d, 0x5); /* Address debug register 5 */ + phy_write(phy, 0x1e, 0x2d47); /* Value copied from u-boot */ + phy_write(phy, 0x1d, 0xb); /* Address hib ctrl */ + phy_write(phy, 0x1e, 0xbc20); /* Value copied from u-boot */ + + return 0; +} + +static struct mii_phy_ops ar8035_phy_ops = { + .init = ar8035_init, + .setup_aneg = genmii_setup_aneg, + .setup_forced = genmii_setup_forced, + .poll_link = genmii_poll_link, + .read_link = genmii_read_link, +}; + +static struct mii_phy_def ar8035_phy_def = { + .phy_id = 0x004dd070, + .phy_id_mask = 0xfffffff0, + .name = "Atheros 8035 Gigabit Ethernet", + .ops = &ar8035_phy_ops, +}; + static struct mii_phy_def *mii_phy_table[] = { &et1011c_phy_def, &cis8201_phy_def, &bcm5248_phy_def, &m88e1111_phy_def, &m88e1112_phy_def, + &ar8035_phy_def, &genmii_phy_def, NULL }; diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 6e9e16eee..88f3c85fb 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -61,6 +61,7 @@ #include <linux/proc_fs.h> #include <linux/in.h> #include <linux/ip.h> +#include <linux/ipv6.h> #include <linux/irq.h> #include <linux/kthread.h> #include <linux/seq_file.h> @@ -74,6 +75,7 @@ #include <linux/uaccess.h> #include <asm/firmware.h> #include <linux/seq_file.h> +#include <linux/workqueue.h> #include "ibmvnic.h" @@ -88,12 +90,14 @@ MODULE_VERSION(IBMVNIC_DRIVER_VERSION); static int ibmvnic_version = IBMVNIC_INITIAL_VERSION; static int ibmvnic_remove(struct vio_dev *); static void release_sub_crqs(struct ibmvnic_adapter *); +static void release_sub_crqs_no_irqs(struct ibmvnic_adapter *); static int ibmvnic_reset_crq(struct ibmvnic_adapter *); static int ibmvnic_send_crq_init(struct ibmvnic_adapter *); static int ibmvnic_reenable_crq_queue(struct ibmvnic_adapter *); static int ibmvnic_send_crq(struct ibmvnic_adapter *, union ibmvnic_crq *); static int send_subcrq(struct ibmvnic_adapter *adapter, u64 remote_handle, union sub_crq *sub_crq); +static int send_subcrq_indirect(struct ibmvnic_adapter *, u64, u64, u64); static irqreturn_t ibmvnic_interrupt_rx(int irq, void *instance); static int enable_scrq_irq(struct ibmvnic_adapter *, struct ibmvnic_sub_crq_queue *); @@ -467,7 +471,8 @@ static int ibmvnic_open(struct net_device *netdev) crq.logical_link_state.link_state = IBMVNIC_LOGICAL_LNK_UP; ibmvnic_send_crq(adapter, &crq); - netif_start_queue(netdev); + netif_tx_start_all_queues(netdev); + return 0; bounce_map_failed: @@ -517,7 +522,7 @@ static int ibmvnic_close(struct net_device *netdev) for (i = 0; i < adapter->req_rx_queues; i++) napi_disable(&adapter->napi[i]); - netif_stop_queue(netdev); + netif_tx_stop_all_queues(netdev); if (adapter->bounce_buffer) { if (!dma_mapping_error(dev, adapter->bounce_buffer_dma)) { @@ -561,10 +566,141 @@ static int ibmvnic_close(struct net_device *netdev) return 0; } +/** + * build_hdr_data - creates L2/L3/L4 header data buffer + * @hdr_field - bitfield determining needed headers + * @skb - socket buffer + * @hdr_len - array of header lengths + * @tot_len - total length of data + * + * Reads hdr_field to determine which headers are needed by firmware. + * Builds a buffer containing these headers. Saves individual header + * lengths and total buffer length to be used to build descriptors. + */ +static int build_hdr_data(u8 hdr_field, struct sk_buff *skb, + int *hdr_len, u8 *hdr_data) +{ + int len = 0; + u8 *hdr; + + hdr_len[0] = sizeof(struct ethhdr); + + if (skb->protocol == htons(ETH_P_IP)) { + hdr_len[1] = ip_hdr(skb)->ihl * 4; + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + hdr_len[2] = tcp_hdrlen(skb); + else if (ip_hdr(skb)->protocol == IPPROTO_UDP) + hdr_len[2] = sizeof(struct udphdr); + } else if (skb->protocol == htons(ETH_P_IPV6)) { + hdr_len[1] = sizeof(struct ipv6hdr); + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + hdr_len[2] = tcp_hdrlen(skb); + else if (ipv6_hdr(skb)->nexthdr == IPPROTO_UDP) + hdr_len[2] = sizeof(struct udphdr); + } + + memset(hdr_data, 0, 120); + if ((hdr_field >> 6) & 1) { + hdr = skb_mac_header(skb); + memcpy(hdr_data, hdr, hdr_len[0]); + len += hdr_len[0]; + } + + if ((hdr_field >> 5) & 1) { + hdr = skb_network_header(skb); + memcpy(hdr_data + len, hdr, hdr_len[1]); + len += hdr_len[1]; + } + + if ((hdr_field >> 4) & 1) { + hdr = skb_transport_header(skb); + memcpy(hdr_data + len, hdr, hdr_len[2]); + len += hdr_len[2]; + } + return len; +} + +/** + * create_hdr_descs - create header and header extension descriptors + * @hdr_field - bitfield determining needed headers + * @data - buffer containing header data + * @len - length of data buffer + * @hdr_len - array of individual header lengths + * @scrq_arr - descriptor array + * + * Creates header and, if needed, header extension descriptors and + * places them in a descriptor array, scrq_arr + */ + +static void create_hdr_descs(u8 hdr_field, u8 *hdr_data, int len, int *hdr_len, + union sub_crq *scrq_arr) +{ + union sub_crq hdr_desc; + int tmp_len = len; + u8 *data, *cur; + int tmp; + + while (tmp_len > 0) { + cur = hdr_data + len - tmp_len; + + memset(&hdr_desc, 0, sizeof(hdr_desc)); + if (cur != hdr_data) { + data = hdr_desc.hdr_ext.data; + tmp = tmp_len > 29 ? 29 : tmp_len; + hdr_desc.hdr_ext.first = IBMVNIC_CRQ_CMD; + hdr_desc.hdr_ext.type = IBMVNIC_HDR_EXT_DESC; + hdr_desc.hdr_ext.len = tmp; + } else { + data = hdr_desc.hdr.data; + tmp = tmp_len > 24 ? 24 : tmp_len; + hdr_desc.hdr.first = IBMVNIC_CRQ_CMD; + hdr_desc.hdr.type = IBMVNIC_HDR_DESC; + hdr_desc.hdr.len = tmp; + hdr_desc.hdr.l2_len = (u8)hdr_len[0]; + hdr_desc.hdr.l3_len = cpu_to_be16((u16)hdr_len[1]); + hdr_desc.hdr.l4_len = (u8)hdr_len[2]; + hdr_desc.hdr.flag = hdr_field << 1; + } + memcpy(data, cur, tmp); + tmp_len -= tmp; + *scrq_arr = hdr_desc; + scrq_arr++; + } +} + +/** + * build_hdr_descs_arr - build a header descriptor array + * @skb - socket buffer + * @num_entries - number of descriptors to be sent + * @subcrq - first TX descriptor + * @hdr_field - bit field determining which headers will be sent + * + * This function will build a TX descriptor array with applicable + * L2/L3/L4 packet header descriptors to be sent by send_subcrq_indirect. + */ + +static void build_hdr_descs_arr(struct ibmvnic_tx_buff *txbuff, + int *num_entries, u8 hdr_field) +{ + int hdr_len[3] = {0, 0, 0}; + int tot_len, len; + u8 *hdr_data = txbuff->hdr_data; + + tot_len = build_hdr_data(hdr_field, txbuff->skb, hdr_len, + txbuff->hdr_data); + len = tot_len; + len -= 24; + if (len > 0) + num_entries += len % 29 ? len / 29 + 1 : len / 29; + create_hdr_descs(hdr_field, hdr_data, tot_len, hdr_len, + txbuff->indir_arr + 1); +} + static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) { struct ibmvnic_adapter *adapter = netdev_priv(netdev); int queue_num = skb_get_queue_mapping(skb); + u8 *hdrs = (u8 *)&adapter->tx_rx_desc_req; struct device *dev = &adapter->vdev->dev; struct ibmvnic_tx_buff *tx_buff = NULL; struct ibmvnic_tx_pool *tx_pool; @@ -579,6 +715,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) unsigned long lpar_rc; union sub_crq tx_crq; unsigned int offset; + int num_entries = 1; unsigned char *dst; u64 *handle_array; int index = 0; @@ -644,11 +781,35 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_UDP; } - if (skb->ip_summed == CHECKSUM_PARTIAL) + if (skb->ip_summed == CHECKSUM_PARTIAL) { tx_crq.v1.flags1 |= IBMVNIC_TX_CHKSUM_OFFLOAD; - - lpar_rc = send_subcrq(adapter, handle_array[0], &tx_crq); - + hdrs += 2; + } + /* determine if l2/3/4 headers are sent to firmware */ + if ((*hdrs >> 7) & 1 && + (skb->protocol == htons(ETH_P_IP) || + skb->protocol == htons(ETH_P_IPV6))) { + build_hdr_descs_arr(tx_buff, &num_entries, *hdrs); + tx_crq.v1.n_crq_elem = num_entries; + tx_buff->indir_arr[0] = tx_crq; + tx_buff->indir_dma = dma_map_single(dev, tx_buff->indir_arr, + sizeof(tx_buff->indir_arr), + DMA_TO_DEVICE); + if (dma_mapping_error(dev, tx_buff->indir_dma)) { + if (!firmware_has_feature(FW_FEATURE_CMO)) + dev_err(dev, "tx: unable to map descriptor array\n"); + tx_map_failed++; + tx_dropped++; + ret = NETDEV_TX_BUSY; + goto out; + } + lpar_rc = send_subcrq_indirect(adapter, handle_array[queue_num], + (u64)tx_buff->indir_dma, + (u64)num_entries); + } else { + lpar_rc = send_subcrq(adapter, handle_array[queue_num], + &tx_crq); + } if (lpar_rc != H_SUCCESS) { dev_err(dev, "tx failed with code %ld\n", lpar_rc); @@ -832,7 +993,7 @@ restart_poll: netdev->stats.rx_bytes += length; frames_processed++; } - replenish_pools(adapter); + replenish_rx_pool(adapter, &adapter->rx_pool[scrq_num]); if (frames_processed < budget) { enable_scrq_irq(adapter, adapter->rx_scrq[scrq_num]); @@ -1054,12 +1215,6 @@ static struct ibmvnic_sub_crq_queue *init_sub_crq_queue(struct ibmvnic_adapter goto reg_failed; } - scrq->irq = irq_create_mapping(NULL, scrq->hw_irq); - if (scrq->irq == NO_IRQ) { - dev_err(dev, "Error mapping irq\n"); - goto map_irq_failed; - } - scrq->adapter = adapter; scrq->size = 4 * PAGE_SIZE / sizeof(*scrq->msgs); scrq->cur = 0; @@ -1072,12 +1227,6 @@ static struct ibmvnic_sub_crq_queue *init_sub_crq_queue(struct ibmvnic_adapter return scrq; -map_irq_failed: - do { - rc = plpar_hcall_norets(H_FREE_SUB_CRQ, - adapter->vdev->unit_address, - scrq->crq_num); - } while (rc == H_BUSY || H_IS_LONG_BUSY(rc)); reg_failed: dma_unmap_single(dev, scrq->msg_token, 4 * PAGE_SIZE, DMA_BIDIRECTIONAL); @@ -1098,6 +1247,7 @@ static void release_sub_crqs(struct ibmvnic_adapter *adapter) if (adapter->tx_scrq[i]) { free_irq(adapter->tx_scrq[i]->irq, adapter->tx_scrq[i]); + irq_dispose_mapping(adapter->tx_scrq[i]->irq); release_sub_crq_queue(adapter, adapter->tx_scrq[i]); } @@ -1109,6 +1259,7 @@ static void release_sub_crqs(struct ibmvnic_adapter *adapter) if (adapter->rx_scrq[i]) { free_irq(adapter->rx_scrq[i]->irq, adapter->rx_scrq[i]); + irq_dispose_mapping(adapter->rx_scrq[i]->irq); release_sub_crq_queue(adapter, adapter->rx_scrq[i]); } @@ -1118,6 +1269,29 @@ static void release_sub_crqs(struct ibmvnic_adapter *adapter) adapter->requested_caps = 0; } +static void release_sub_crqs_no_irqs(struct ibmvnic_adapter *adapter) +{ + int i; + + if (adapter->tx_scrq) { + for (i = 0; i < adapter->req_tx_queues; i++) + if (adapter->tx_scrq[i]) + release_sub_crq_queue(adapter, + adapter->tx_scrq[i]); + adapter->tx_scrq = NULL; + } + + if (adapter->rx_scrq) { + for (i = 0; i < adapter->req_rx_queues; i++) + if (adapter->rx_scrq[i]) + release_sub_crq_queue(adapter, + adapter->rx_scrq[i]); + adapter->rx_scrq = NULL; + } + + adapter->requested_caps = 0; +} + static int disable_scrq_irq(struct ibmvnic_adapter *adapter, struct ibmvnic_sub_crq_queue *scrq) { @@ -1159,6 +1333,7 @@ static int ibmvnic_complete_tx(struct ibmvnic_adapter *adapter, union sub_crq *next; int index; int i, j; + u8 first; restart_loop: while (pending_scrq(adapter, scrq)) { @@ -1181,6 +1356,13 @@ restart_loop: txbuff->data_dma[j] = 0; txbuff->used_bounce = false; } + /* if sub_crq was sent indirectly */ + first = txbuff->indir_arr[0].generic.first; + if (first == IBMVNIC_CRQ_CMD) { + dma_unmap_single(dev, txbuff->indir_dma, + sizeof(txbuff->indir_arr), + DMA_TO_DEVICE); + } if (txbuff->last_frag) dev_kfree_skb_any(txbuff->skb); @@ -1229,6 +1411,66 @@ static irqreturn_t ibmvnic_interrupt_rx(int irq, void *instance) return IRQ_HANDLED; } +static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter) +{ + struct device *dev = &adapter->vdev->dev; + struct ibmvnic_sub_crq_queue *scrq; + int i = 0, j = 0; + int rc = 0; + + for (i = 0; i < adapter->req_tx_queues; i++) { + scrq = adapter->tx_scrq[i]; + scrq->irq = irq_create_mapping(NULL, scrq->hw_irq); + + if (scrq->irq == NO_IRQ) { + rc = -EINVAL; + dev_err(dev, "Error mapping irq\n"); + goto req_tx_irq_failed; + } + + rc = request_irq(scrq->irq, ibmvnic_interrupt_tx, + 0, "ibmvnic_tx", scrq); + + if (rc) { + dev_err(dev, "Couldn't register tx irq 0x%x. rc=%d\n", + scrq->irq, rc); + irq_dispose_mapping(scrq->irq); + goto req_rx_irq_failed; + } + } + + for (i = 0; i < adapter->req_rx_queues; i++) { + scrq = adapter->rx_scrq[i]; + scrq->irq = irq_create_mapping(NULL, scrq->hw_irq); + if (scrq->irq == NO_IRQ) { + rc = -EINVAL; + dev_err(dev, "Error mapping irq\n"); + goto req_rx_irq_failed; + } + rc = request_irq(scrq->irq, ibmvnic_interrupt_rx, + 0, "ibmvnic_rx", scrq); + if (rc) { + dev_err(dev, "Couldn't register rx irq 0x%x. rc=%d\n", + scrq->irq, rc); + irq_dispose_mapping(scrq->irq); + goto req_rx_irq_failed; + } + } + return rc; + +req_rx_irq_failed: + for (j = 0; j < i; j++) + free_irq(adapter->rx_scrq[j]->irq, adapter->rx_scrq[j]); + irq_dispose_mapping(adapter->rx_scrq[j]->irq); + i = adapter->req_tx_queues; +req_tx_irq_failed: + for (j = 0; j < i; j++) + free_irq(adapter->tx_scrq[j]->irq, adapter->tx_scrq[j]); + irq_dispose_mapping(adapter->rx_scrq[j]->irq); + release_sub_crqs_no_irqs(adapter); + return rc; +} + static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) { struct device *dev = &adapter->vdev->dev; @@ -1237,8 +1479,7 @@ static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) union ibmvnic_crq crq; int total_queues; int more = 0; - int i, j; - int rc; + int i; if (!retry) { /* Sub-CRQ entries are 32 byte long */ @@ -1261,9 +1502,9 @@ static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) entries_page : adapter->max_rx_add_entries_per_subcrq; /* Choosing the maximum number of queues supported by firmware*/ - adapter->req_tx_queues = adapter->min_tx_queues; - adapter->req_rx_queues = adapter->min_rx_queues; - adapter->req_rx_add_queues = adapter->min_rx_add_queues; + adapter->req_tx_queues = adapter->max_tx_queues; + adapter->req_rx_queues = adapter->max_rx_queues; + adapter->req_rx_add_queues = adapter->max_rx_add_queues; adapter->req_mtu = adapter->max_mtu; } @@ -1317,13 +1558,6 @@ static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) for (i = 0; i < adapter->req_tx_queues; i++) { adapter->tx_scrq[i] = allqueues[i]; adapter->tx_scrq[i]->pool_index = i; - rc = request_irq(adapter->tx_scrq[i]->irq, ibmvnic_interrupt_tx, - 0, "ibmvnic_tx", adapter->tx_scrq[i]); - if (rc) { - dev_err(dev, "Couldn't register tx irq 0x%x. rc=%d\n", - adapter->tx_scrq[i]->irq, rc); - goto req_tx_irq_failed; - } } adapter->rx_scrq = kcalloc(adapter->req_rx_queues, @@ -1334,13 +1568,6 @@ static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) for (i = 0; i < adapter->req_rx_queues; i++) { adapter->rx_scrq[i] = allqueues[i + adapter->req_tx_queues]; adapter->rx_scrq[i]->scrq_num = i; - rc = request_irq(adapter->rx_scrq[i]->irq, ibmvnic_interrupt_rx, - 0, "ibmvnic_rx", adapter->rx_scrq[i]); - if (rc) { - dev_err(dev, "Couldn't register rx irq 0x%x. rc=%d\n", - adapter->rx_scrq[i]->irq, rc); - goto req_rx_irq_failed; - } } memset(&crq, 0, sizeof(crq)); @@ -1393,15 +1620,6 @@ static void init_sub_crqs(struct ibmvnic_adapter *adapter, int retry) return; -req_rx_irq_failed: - for (j = 0; j < i; j++) - free_irq(adapter->rx_scrq[j]->irq, adapter->rx_scrq[j]); - i = adapter->req_tx_queues; -req_tx_irq_failed: - for (j = 0; j < i; j++) - free_irq(adapter->tx_scrq[j]->irq, adapter->tx_scrq[j]); - kfree(adapter->rx_scrq); - adapter->rx_scrq = NULL; rx_failed: kfree(adapter->tx_scrq); adapter->tx_scrq = NULL; @@ -1494,6 +1712,28 @@ static int send_subcrq(struct ibmvnic_adapter *adapter, u64 remote_handle, return rc; } +static int send_subcrq_indirect(struct ibmvnic_adapter *adapter, + u64 remote_handle, u64 ioba, u64 num_entries) +{ + unsigned int ua = adapter->vdev->unit_address; + struct device *dev = &adapter->vdev->dev; + int rc; + + /* Make sure the hypervisor sees the complete request */ + mb(); + rc = plpar_hcall_norets(H_SEND_SUB_CRQ_INDIRECT, ua, + cpu_to_be64(remote_handle), + ioba, num_entries); + + if (rc) { + if (rc == H_CLOSED) + dev_warn(dev, "CRQ Queue closed\n"); + dev_err(dev, "Send (indirect) error (rc=%d)\n", rc); + } + + return rc; +} + static int ibmvnic_send_crq(struct ibmvnic_adapter *adapter, union ibmvnic_crq *crq) { @@ -1589,13 +1829,11 @@ static void send_login(struct ibmvnic_adapter *adapter) goto buf_map_failed; } - rsp_buffer_size = - sizeof(struct ibmvnic_login_rsp_buffer) + - sizeof(u64) * (adapter->req_tx_queues + - adapter->req_rx_queues * - adapter->req_rx_add_queues + adapter-> - req_rx_add_queues) + - sizeof(u8) * (IBMVNIC_TX_DESC_VERSIONS); + rsp_buffer_size = sizeof(struct ibmvnic_login_rsp_buffer) + + sizeof(u64) * adapter->req_tx_queues + + sizeof(u64) * adapter->req_rx_queues + + sizeof(u64) * adapter->req_rx_queues + + sizeof(u8) * IBMVNIC_TX_DESC_VERSIONS; login_rsp_buffer = kmalloc(rsp_buffer_size, GFP_ATOMIC); if (!login_rsp_buffer) @@ -1918,6 +2156,10 @@ static void handle_query_ip_offload_rsp(struct ibmvnic_adapter *adapter) if (buf->tcp_ipv6_chksum || buf->udp_ipv6_chksum) adapter->netdev->features |= NETIF_F_IPV6_CSUM; + if ((adapter->netdev->features & + (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM))) + adapter->netdev->features |= NETIF_F_RXCSUM; + memset(&crq, 0, sizeof(crq)); crq.control_ip_offload.first = IBMVNIC_CRQ_CMD; crq.control_ip_offload.cmd = CONTROL_IP_OFFLOAD; @@ -1931,7 +2173,7 @@ static void handle_error_info_rsp(union ibmvnic_crq *crq, struct ibmvnic_adapter *adapter) { struct device *dev = &adapter->vdev->dev; - struct ibmvnic_error_buff *error_buff; + struct ibmvnic_error_buff *error_buff, *tmp; unsigned long flags; bool found = false; int i; @@ -1943,7 +2185,7 @@ static void handle_error_info_rsp(union ibmvnic_crq *crq, } spin_lock_irqsave(&adapter->error_list_lock, flags); - list_for_each_entry(error_buff, &adapter->errors, list) + list_for_each_entry_safe(error_buff, tmp, &adapter->errors, list) if (error_buff->error_id == crq->request_error_rsp.error_id) { found = true; list_del(&error_buff->list); @@ -2158,9 +2400,9 @@ static void handle_request_cap_rsp(union ibmvnic_crq *crq, *req_value, (long int)be32_to_cpu(crq->request_capability_rsp. number), name); - release_sub_crqs(adapter); + release_sub_crqs_no_irqs(adapter); *req_value = be32_to_cpu(crq->request_capability_rsp.number); - complete(&adapter->init_done); + init_sub_crqs(adapter, 1); return; default: dev_err(dev, "Error %d in request cap rsp\n", @@ -2210,6 +2452,16 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq, dma_unmap_single(dev, adapter->login_rsp_buf_token, adapter->login_rsp_buf_sz, DMA_BIDIRECTIONAL); + /* If the number of queues requested can't be allocated by the + * server, the login response will return with code 1. We will need + * to resend the login buffer with fewer queues requested. + */ + if (login_rsp_crq->generic.rc.code) { + adapter->renegotiate = true; + complete(&adapter->init_done); + return 0; + } + netdev_dbg(adapter->netdev, "Login Response Buffer:\n"); for (i = 0; i < (adapter->login_rsp_buf_sz - 1) / 8 + 1; i++) { netdev_dbg(adapter->netdev, "%016lx\n", @@ -2459,7 +2711,7 @@ static void handle_query_cap_rsp(union ibmvnic_crq *crq, out: if (atomic_read(&adapter->running_cap_queries) == 0) - complete(&adapter->init_done); + init_sub_crqs(adapter, 0); /* We're done querying the capabilities, initialize sub-crqs */ } @@ -2941,14 +3193,14 @@ static void handle_request_ras_comp_num_rsp(union ibmvnic_crq *crq, static void ibmvnic_free_inflight(struct ibmvnic_adapter *adapter) { - struct ibmvnic_inflight_cmd *inflight_cmd; + struct ibmvnic_inflight_cmd *inflight_cmd, *tmp1; struct device *dev = &adapter->vdev->dev; - struct ibmvnic_error_buff *error_buff; + struct ibmvnic_error_buff *error_buff, *tmp2; unsigned long flags; unsigned long flags2; spin_lock_irqsave(&adapter->inflight_lock, flags); - list_for_each_entry(inflight_cmd, &adapter->inflight, list) { + list_for_each_entry_safe(inflight_cmd, tmp1, &adapter->inflight, list) { switch (inflight_cmd->crq.generic.cmd) { case LOGIN: dma_unmap_single(dev, adapter->login_buf_token, @@ -2965,8 +3217,8 @@ static void ibmvnic_free_inflight(struct ibmvnic_adapter *adapter) break; case REQUEST_ERROR_INFO: spin_lock_irqsave(&adapter->error_list_lock, flags2); - list_for_each_entry(error_buff, &adapter->errors, - list) { + list_for_each_entry_safe(error_buff, tmp2, + &adapter->errors, list) { dma_unmap_single(dev, error_buff->dma, error_buff->len, DMA_FROM_DEVICE); @@ -3002,8 +3254,8 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq, dev_info(dev, "Partner initialized\n"); /* Send back a response */ rc = ibmvnic_send_crq_init_complete(adapter); - if (rc == 0) - send_version_xchg(adapter); + if (!rc) + schedule_work(&adapter->vnic_crq_init); else dev_err(dev, "Can't send initrsp rc=%ld\n", rc); break; @@ -3355,8 +3607,63 @@ static const struct file_operations ibmvnic_dump_ops = { .release = single_release, }; +static void handle_crq_init_rsp(struct work_struct *work) +{ + struct ibmvnic_adapter *adapter = container_of(work, + struct ibmvnic_adapter, + vnic_crq_init); + struct device *dev = &adapter->vdev->dev; + struct net_device *netdev = adapter->netdev; + unsigned long timeout = msecs_to_jiffies(30000); + int rc; + + send_version_xchg(adapter); + reinit_completion(&adapter->init_done); + if (!wait_for_completion_timeout(&adapter->init_done, timeout)) { + dev_err(dev, "Passive init timeout\n"); + goto task_failed; + } + + do { + if (adapter->renegotiate) { + adapter->renegotiate = false; + release_sub_crqs_no_irqs(adapter); + send_cap_queries(adapter); + + reinit_completion(&adapter->init_done); + if (!wait_for_completion_timeout(&adapter->init_done, + timeout)) { + dev_err(dev, "Passive init timeout\n"); + goto task_failed; + } + } + } while (adapter->renegotiate); + rc = init_sub_crq_irqs(adapter); + + if (rc) + goto task_failed; + + netdev->real_num_tx_queues = adapter->req_tx_queues; + + rc = register_netdev(netdev); + if (rc) { + dev_err(dev, + "failed to register netdev rc=%d\n", rc); + goto register_failed; + } + dev_info(dev, "ibmvnic registered\n"); + + return; + +register_failed: + release_sub_crqs(adapter); +task_failed: + dev_err(dev, "Passive initialization was not successful\n"); +} + static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) { + unsigned long timeout = msecs_to_jiffies(30000); struct ibmvnic_adapter *adapter; struct net_device *netdev; unsigned char *mac_addr_p; @@ -3393,6 +3700,8 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) netdev->ethtool_ops = &ibmvnic_ethtool_ops; SET_NETDEV_DEV(netdev, &dev->dev); + INIT_WORK(&adapter->vnic_crq_init, handle_crq_init_rsp); + spin_lock_init(&adapter->stats_lock); rc = ibmvnic_init_crq_queue(adapter); @@ -3435,23 +3744,26 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) ibmvnic_send_crq_init(adapter); init_completion(&adapter->init_done); - wait_for_completion(&adapter->init_done); - - /* needed to pull init_sub_crqs outside of an interrupt context - * because it creates IRQ mappings for the subCRQ queues, causing - * a kernel warning - */ - init_sub_crqs(adapter, 0); - - reinit_completion(&adapter->init_done); - wait_for_completion(&adapter->init_done); + if (!wait_for_completion_timeout(&adapter->init_done, timeout)) + return 0; - /* if init_sub_crqs is partially successful, retry */ - while (!adapter->tx_scrq || !adapter->rx_scrq) { - init_sub_crqs(adapter, 1); + do { + if (adapter->renegotiate) { + adapter->renegotiate = false; + release_sub_crqs_no_irqs(adapter); + send_cap_queries(adapter); + + reinit_completion(&adapter->init_done); + if (!wait_for_completion_timeout(&adapter->init_done, + timeout)) + return 0; + } + } while (adapter->renegotiate); - reinit_completion(&adapter->init_done); - wait_for_completion(&adapter->init_done); + rc = init_sub_crq_irqs(adapter); + if (rc) { + dev_err(&dev->dev, "failed to initialize sub crq irqs\n"); + goto free_debugfs; } netdev->real_num_tx_queues = adapter->req_tx_queues; @@ -3459,12 +3771,14 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) rc = register_netdev(netdev); if (rc) { dev_err(&dev->dev, "failed to register netdev rc=%d\n", rc); - goto free_debugfs; + goto free_sub_crqs; } dev_info(&dev->dev, "ibmvnic registered\n"); return 0; +free_sub_crqs: + release_sub_crqs(adapter); free_debugfs: if (adapter->debugfs_dir && !IS_ERR(adapter->debugfs_dir)) debugfs_remove_recursive(adapter->debugfs_dir); diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index 1a9993cc7..e82898fd5 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -879,6 +879,9 @@ struct ibmvnic_tx_buff { int pool_index; bool last_frag; bool used_bounce; + union sub_crq indir_arr[6]; + u8 hdr_data[140]; + dma_addr_t indir_dma; }; struct ibmvnic_tx_pool { @@ -977,6 +980,7 @@ struct ibmvnic_adapter { struct ibmvnic_sub_crq_queue **tx_scrq; struct ibmvnic_sub_crq_queue **rx_scrq; int requested_caps; + bool renegotiate; /* rx structs */ struct napi_struct *napi; @@ -1041,4 +1045,6 @@ struct ibmvnic_adapter { u64 opt_rxba_entries_per_subcrq; __be64 tx_rx_desc_req; u8 map_id; + + struct work_struct vnic_crq_init; }; |