diff options
Diffstat (limited to 'drivers/net/cxgb3/cxgb3_main.c')
| -rw-r--r-- | drivers/net/cxgb3/cxgb3_main.c | 3448 |
1 files changed, 0 insertions, 3448 deletions
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c deleted file mode 100644 index 93b41a7ac17..00000000000 --- a/drivers/net/cxgb3/cxgb3_main.c +++ /dev/null @@ -1,3448 +0,0 @@ -/* - * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/if_vlan.h> -#include <linux/mdio.h> -#include <linux/sockios.h> -#include <linux/workqueue.h> -#include <linux/proc_fs.h> -#include <linux/rtnetlink.h> -#include <linux/firmware.h> -#include <linux/log2.h> -#include <linux/stringify.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <asm/uaccess.h> - -#include "common.h" -#include "cxgb3_ioctl.h" -#include "regs.h" -#include "cxgb3_offload.h" -#include "version.h" - -#include "cxgb3_ctl_defs.h" -#include "t3_cpl.h" -#include "firmware_exports.h" - -enum { - MAX_TXQ_ENTRIES = 16384, - MAX_CTRL_TXQ_ENTRIES = 1024, - MAX_RSPQ_ENTRIES = 16384, - MAX_RX_BUFFERS = 16384, - MAX_RX_JUMBO_BUFFERS = 16384, - MIN_TXQ_ENTRIES = 4, - MIN_CTRL_TXQ_ENTRIES = 4, - MIN_RSPQ_ENTRIES = 32, - MIN_FL_ENTRIES = 32 -}; - -#define PORT_MASK ((1 << MAX_NPORTS) - 1) - -#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ - NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ - NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) - -#define EEPROM_MAGIC 0x38E2F10C - -#define CH_DEVICE(devid, idx) \ - { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx } - -static DEFINE_PCI_DEVICE_TABLE(cxgb3_pci_tbl) = { - CH_DEVICE(0x20, 0), /* PE9000 */ - CH_DEVICE(0x21, 1), /* T302E */ - CH_DEVICE(0x22, 2), /* T310E */ - CH_DEVICE(0x23, 3), /* T320X */ - CH_DEVICE(0x24, 1), /* T302X */ - CH_DEVICE(0x25, 3), /* T320E */ - CH_DEVICE(0x26, 2), /* T310X */ - CH_DEVICE(0x30, 2), /* T3B10 */ - CH_DEVICE(0x31, 3), /* T3B20 */ - CH_DEVICE(0x32, 1), /* T3B02 */ - CH_DEVICE(0x35, 6), /* T3C20-derived T3C10 */ - CH_DEVICE(0x36, 3), /* S320E-CR */ - CH_DEVICE(0x37, 7), /* N320E-G2 */ - {0,} -}; - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_AUTHOR("Chelsio Communications"); -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_VERSION(DRV_VERSION); -MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl); - -static int dflt_msg_enable = DFLT_MSG_ENABLE; - -module_param(dflt_msg_enable, int, 0644); -MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap"); - -/* - * The driver uses the best interrupt scheme available on a platform in the - * order MSI-X, MSI, legacy pin interrupts. This parameter determines which - * of these schemes the driver may consider as follows: - * - * msi = 2: choose from among all three options - * msi = 1: only consider MSI and pin interrupts - * msi = 0: force pin interrupts - */ -static int msi = 2; - -module_param(msi, int, 0644); -MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X"); - -/* - * The driver enables offload as a default. - * To disable it, use ofld_disable = 1. - */ - -static int ofld_disable = 0; - -module_param(ofld_disable, int, 0644); -MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not"); - -/* - * We have work elements that we need to cancel when an interface is taken - * down. Normally the work elements would be executed by keventd but that - * can deadlock because of linkwatch. If our close method takes the rtnl - * lock and linkwatch is ahead of our work elements in keventd, linkwatch - * will block keventd as it needs the rtnl lock, and we'll deadlock waiting - * for our work to complete. Get our own work queue to solve this. - */ -struct workqueue_struct *cxgb3_wq; - -/** - * link_report - show link status and link speed/duplex - * @p: the port whose settings are to be reported - * - * Shows the link status, speed, and duplex of a port. - */ -static void link_report(struct net_device *dev) -{ - if (!netif_carrier_ok(dev)) - printk(KERN_INFO "%s: link down\n", dev->name); - else { - const char *s = "10Mbps"; - const struct port_info *p = netdev_priv(dev); - - switch (p->link_config.speed) { - case SPEED_10000: - s = "10Gbps"; - break; - case SPEED_1000: - s = "1000Mbps"; - break; - case SPEED_100: - s = "100Mbps"; - break; - } - - printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s, - p->link_config.duplex == DUPLEX_FULL ? "full" : "half"); - } -} - -static void enable_tx_fifo_drain(struct adapter *adapter, - struct port_info *pi) -{ - t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset, 0, - F_ENDROPPKT); - t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, 0); - t3_write_reg(adapter, A_XGM_TX_CTRL + pi->mac.offset, F_TXEN); - t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, F_RXEN); -} - -static void disable_tx_fifo_drain(struct adapter *adapter, - struct port_info *pi) -{ - t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset, - F_ENDROPPKT, 0); -} - -void t3_os_link_fault(struct adapter *adap, int port_id, int state) -{ - struct net_device *dev = adap->port[port_id]; - struct port_info *pi = netdev_priv(dev); - - if (state == netif_carrier_ok(dev)) - return; - - if (state) { - struct cmac *mac = &pi->mac; - - netif_carrier_on(dev); - - disable_tx_fifo_drain(adap, pi); - - /* Clear local faults */ - t3_xgm_intr_disable(adap, pi->port_id); - t3_read_reg(adap, A_XGM_INT_STATUS + - pi->mac.offset); - t3_write_reg(adap, - A_XGM_INT_CAUSE + pi->mac.offset, - F_XGM_INT); - - t3_set_reg_field(adap, - A_XGM_INT_ENABLE + - pi->mac.offset, - F_XGM_INT, F_XGM_INT); - t3_xgm_intr_enable(adap, pi->port_id); - - t3_mac_enable(mac, MAC_DIRECTION_TX); - } else { - netif_carrier_off(dev); - - /* Flush TX FIFO */ - enable_tx_fifo_drain(adap, pi); - } - link_report(dev); -} - -/** - * t3_os_link_changed - handle link status changes - * @adapter: the adapter associated with the link change - * @port_id: the port index whose limk status has changed - * @link_stat: the new status of the link - * @speed: the new speed setting - * @duplex: the new duplex setting - * @pause: the new flow-control setting - * - * This is the OS-dependent handler for link status changes. The OS - * neutral handler takes care of most of the processing for these events, - * then calls this handler for any OS-specific processing. - */ -void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat, - int speed, int duplex, int pause) -{ - struct net_device *dev = adapter->port[port_id]; - struct port_info *pi = netdev_priv(dev); - struct cmac *mac = &pi->mac; - - /* Skip changes from disabled ports. */ - if (!netif_running(dev)) - return; - - if (link_stat != netif_carrier_ok(dev)) { - if (link_stat) { - disable_tx_fifo_drain(adapter, pi); - - t3_mac_enable(mac, MAC_DIRECTION_RX); - - /* Clear local faults */ - t3_xgm_intr_disable(adapter, pi->port_id); - t3_read_reg(adapter, A_XGM_INT_STATUS + - pi->mac.offset); - t3_write_reg(adapter, - A_XGM_INT_CAUSE + pi->mac.offset, - F_XGM_INT); - - t3_set_reg_field(adapter, - A_XGM_INT_ENABLE + pi->mac.offset, - F_XGM_INT, F_XGM_INT); - t3_xgm_intr_enable(adapter, pi->port_id); - - netif_carrier_on(dev); - } else { - netif_carrier_off(dev); - - t3_xgm_intr_disable(adapter, pi->port_id); - t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset); - t3_set_reg_field(adapter, - A_XGM_INT_ENABLE + pi->mac.offset, - F_XGM_INT, 0); - - if (is_10G(adapter)) - pi->phy.ops->power_down(&pi->phy, 1); - - t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset); - t3_mac_disable(mac, MAC_DIRECTION_RX); - t3_link_start(&pi->phy, mac, &pi->link_config); - - /* Flush TX FIFO */ - enable_tx_fifo_drain(adapter, pi); - } - - link_report(dev); - } -} - -/** - * t3_os_phymod_changed - handle PHY module changes - * @phy: the PHY reporting the module change - * @mod_type: new module type - * - * This is the OS-dependent handler for PHY module changes. It is - * invoked when a PHY module is removed or inserted for any OS-specific - * processing. - */ -void t3_os_phymod_changed(struct adapter *adap, int port_id) -{ - static const char *mod_str[] = { - NULL, "SR", "LR", "LRM", "TWINAX", "TWINAX", "unknown" - }; - - const struct net_device *dev = adap->port[port_id]; - const struct port_info *pi = netdev_priv(dev); - - if (pi->phy.modtype == phy_modtype_none) - printk(KERN_INFO "%s: PHY module unplugged\n", dev->name); - else - printk(KERN_INFO "%s: %s PHY module inserted\n", dev->name, - mod_str[pi->phy.modtype]); -} - -static void cxgb_set_rxmode(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - - t3_mac_set_rx_mode(&pi->mac, dev); -} - -/** - * link_start - enable a port - * @dev: the device to enable - * - * Performs the MAC and PHY actions needed to enable a port. - */ -static void link_start(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct cmac *mac = &pi->mac; - - t3_mac_reset(mac); - t3_mac_set_num_ucast(mac, MAX_MAC_IDX); - t3_mac_set_mtu(mac, dev->mtu); - t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr); - t3_mac_set_address(mac, SAN_MAC_IDX, pi->iscsic.mac_addr); - t3_mac_set_rx_mode(mac, dev); - t3_link_start(&pi->phy, mac, &pi->link_config); - t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); -} - -static inline void cxgb_disable_msi(struct adapter *adapter) -{ - if (adapter->flags & USING_MSIX) { - pci_disable_msix(adapter->pdev); - adapter->flags &= ~USING_MSIX; - } else if (adapter->flags & USING_MSI) { - pci_disable_msi(adapter->pdev); - adapter->flags &= ~USING_MSI; - } -} - -/* - * Interrupt handler for asynchronous events used with MSI-X. - */ -static irqreturn_t t3_async_intr_handler(int irq, void *cookie) -{ - t3_slow_intr_handler(cookie); - return IRQ_HANDLED; -} - -/* - * Name the MSI-X interrupts. - */ -static void name_msix_vecs(struct adapter *adap) -{ - int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1; - - snprintf(adap->msix_info[0].desc, n, "%s", adap->name); - adap->msix_info[0].desc[n] = 0; - - for_each_port(adap, j) { - struct net_device *d = adap->port[j]; - const struct port_info *pi = netdev_priv(d); - - for (i = 0; i < pi->nqsets; i++, msi_idx++) { - snprintf(adap->msix_info[msi_idx].desc, n, - "%s-%d", d->name, pi->first_qset + i); - adap->msix_info[msi_idx].desc[n] = 0; - } - } -} - -static int request_msix_data_irqs(struct adapter *adap) -{ - int i, j, err, qidx = 0; - - for_each_port(adap, i) { - int nqsets = adap2pinfo(adap, i)->nqsets; - - for (j = 0; j < nqsets; ++j) { - err = request_irq(adap->msix_info[qidx + 1].vec, - t3_intr_handler(adap, - adap->sge.qs[qidx]. - rspq.polling), 0, - adap->msix_info[qidx + 1].desc, - &adap->sge.qs[qidx]); - if (err) { - while (--qidx >= 0) - free_irq(adap->msix_info[qidx + 1].vec, - &adap->sge.qs[qidx]); - return err; - } - qidx++; - } - } - return 0; -} - -static void free_irq_resources(struct adapter *adapter) -{ - if (adapter->flags & USING_MSIX) { - int i, n = 0; - - free_irq(adapter->msix_info[0].vec, adapter); - for_each_port(adapter, i) - n += adap2pinfo(adapter, i)->nqsets; - - for (i = 0; i < n; ++i) - free_irq(adapter->msix_info[i + 1].vec, - &adapter->sge.qs[i]); - } else - free_irq(adapter->pdev->irq, adapter); -} - -static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt, - unsigned long n) -{ - int attempts = 10; - - while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) { - if (!--attempts) - return -ETIMEDOUT; - msleep(10); - } - return 0; -} - -static int init_tp_parity(struct adapter *adap) -{ - int i; - struct sk_buff *skb; - struct cpl_set_tcb_field *greq; - unsigned long cnt = adap->sge.qs[0].rspq.offload_pkts; - - t3_tp_set_offload_mode(adap, 1); - - for (i = 0; i < 16; i++) { - struct cpl_smt_write_req *req; - - skb = alloc_skb(sizeof(*req), GFP_KERNEL); - if (!skb) - skb = adap->nofail_skb; - if (!skb) - goto alloc_skb_fail; - - req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req)); - memset(req, 0, sizeof(*req)); - req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); - OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, i)); - req->mtu_idx = NMTUS - 1; - req->iff = i; - t3_mgmt_tx(adap, skb); - if (skb == adap->nofail_skb) { - await_mgmt_replies(adap, cnt, i + 1); - adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL); - if (!adap->nofail_skb) - goto alloc_skb_fail; - } - } - - for (i = 0; i < 2048; i++) { - struct cpl_l2t_write_req *req; - - skb = alloc_skb(sizeof(*req), GFP_KERNEL); - if (!skb) - skb = adap->nofail_skb; - if (!skb) - goto alloc_skb_fail; - - req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req)); - memset(req, 0, sizeof(*req)); - req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); - OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, i)); - req->params = htonl(V_L2T_W_IDX(i)); - t3_mgmt_tx(adap, skb); - if (skb == adap->nofail_skb) { - await_mgmt_replies(adap, cnt, 16 + i + 1); - adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL); - if (!adap->nofail_skb) - goto alloc_skb_fail; - } - } - - for (i = 0; i < 2048; i++) { - struct cpl_rte_write_req *req; - - skb = alloc_skb(sizeof(*req), GFP_KERNEL); - if (!skb) - skb = adap->nofail_skb; - if (!skb) - goto alloc_skb_fail; - - req = (struct cpl_rte_write_req *)__skb_put(skb, sizeof(*req)); - memset(req, 0, sizeof(*req)); - req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); - OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ, i)); - req->l2t_idx = htonl(V_L2T_W_IDX(i)); - t3_mgmt_tx(adap, skb); - if (skb == adap->nofail_skb) { - await_mgmt_replies(adap, cnt, 16 + 2048 + i + 1); - adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL); - if (!adap->nofail_skb) - goto alloc_skb_fail; - } - } - - skb = alloc_skb(sizeof(*greq), GFP_KERNEL); - if (!skb) - skb = adap->nofail_skb; - if (!skb) - goto alloc_skb_fail; - - greq = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*greq)); - memset(greq, 0, sizeof(*greq)); - greq->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); - OPCODE_TID(greq) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, 0)); - greq->mask = cpu_to_be64(1); - t3_mgmt_tx(adap, skb); - - i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1); - if (skb == adap->nofail_skb) { - i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1); - adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL); - } - - t3_tp_set_offload_mode(adap, 0); - return i; - -alloc_skb_fail: - t3_tp_set_offload_mode(adap, 0); - return -ENOMEM; -} - -/** - * setup_rss - configure RSS - * @adap: the adapter - * - * Sets up RSS to distribute packets to multiple receive queues. We - * configure the RSS CPU lookup table to distribute to the number of HW - * receive queues, and the response queue lookup table to narrow that - * down to the response queues actually configured for each port. - * We always configure the RSS mapping for two ports since the mapping - * table has plenty of entries. - */ -static void setup_rss(struct adapter *adap) -{ - int i; - unsigned int nq0 = adap2pinfo(adap, 0)->nqsets; - unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1; - u8 cpus[SGE_QSETS + 1]; - u16 rspq_map[RSS_TABLE_SIZE]; - - for (i = 0; i < SGE_QSETS; ++i) - cpus[i] = i; - cpus[SGE_QSETS] = 0xff; /* terminator */ - - for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) { - rspq_map[i] = i % nq0; - rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0; - } - - t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN | - F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN | - V_RRCPLCPUSIZE(6) | F_HASHTOEPLITZ, cpus, rspq_map); -} - -static void ring_dbs(struct adapter *adap) -{ - int i, j; - - for (i = 0; i < SGE_QSETS; i++) { - struct sge_qset *qs = &adap->sge.qs[i]; - - if (qs->adap) - for (j = 0; j < SGE_TXQ_PER_SET; j++) - t3_write_reg(adap, A_SG_KDOORBELL, F_SELEGRCNTX | V_EGRCNTX(qs->txq[j].cntxt_id)); - } -} - -static void init_napi(struct adapter *adap) -{ - int i; - - for (i = 0; i < SGE_QSETS; i++) { - struct sge_qset *qs = &adap->sge.qs[i]; - - if (qs->adap) - netif_napi_add(qs->netdev, &qs->napi, qs->napi.poll, - 64); - } - - /* - * netif_napi_add() can be called only once per napi_struct because it - * adds each new napi_struct to a list. Be careful not to call it a - * second time, e.g., during EEH recovery, by making a note of it. - */ - adap->flags |= NAPI_INIT; -} - -/* - * Wait until all NAPI handlers are descheduled. This includes the handlers of - * both netdevices representing interfaces and the dummy ones for the extra - * queues. - */ -static void quiesce_rx(struct adapter *adap) -{ - int i; - - for (i = 0; i < SGE_QSETS; i++) - if (adap->sge.qs[i].adap) - napi_disable(&adap->sge.qs[i].napi); -} - -static void enable_all_napi(struct adapter *adap) -{ - int i; - for (i = 0; i < SGE_QSETS; i++) - if (adap->sge.qs[i].adap) - napi_enable(&adap->sge.qs[i].napi); -} - -/** - * setup_sge_qsets - configure SGE Tx/Rx/response queues - * @adap: the adapter - * - * Determines how many sets of SGE queues to use and initializes them. - * We support multiple queue sets per port if we have MSI-X, otherwise - * just one queue set per port. - */ -static int setup_sge_qsets(struct adapter *adap) -{ - int i, j, err, irq_idx = 0, qset_idx = 0; - unsigned int ntxq = SGE_TXQ_PER_SET; - - if (adap->params.rev > 0 && !(adap->flags & USING_MSI)) - irq_idx = -1; - - for_each_port(adap, i) { - struct net_device *dev = adap->port[i]; - struct port_info *pi = netdev_priv(dev); - - pi->qs = &adap->sge.qs[pi->first_qset]; - for (j = 0; j < pi->nqsets; ++j, ++qset_idx) { - err = t3_sge_alloc_qset(adap, qset_idx, 1, - (adap->flags & USING_MSIX) ? qset_idx + 1 : - irq_idx, - &adap->params.sge.qset[qset_idx], ntxq, dev, - netdev_get_tx_queue(dev, j)); - if (err) { - t3_free_sge_resources(adap); - return err; - } - } - } - - return 0; -} - -static ssize_t attr_show(struct device *d, char *buf, - ssize_t(*format) (struct net_device *, char *)) -{ - ssize_t len; - - /* Synchronize with ioctls that may shut down the device */ - rtnl_lock(); - len = (*format) (to_net_dev(d), buf); - rtnl_unlock(); - return len; -} - -static ssize_t attr_store(struct device *d, - const char *buf, size_t len, - ssize_t(*set) (struct net_device *, unsigned int), - unsigned int min_val, unsigned int max_val) -{ - char *endp; - ssize_t ret; - unsigned int val; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - val = simple_strtoul(buf, &endp, 0); - if (endp == buf || val < min_val || val > max_val) - return -EINVAL; - - rtnl_lock(); - ret = (*set) (to_net_dev(d), val); - if (!ret) - ret = len; - rtnl_unlock(); - return ret; -} - -#define CXGB3_SHOW(name, val_expr) \ -static ssize_t format_##name(struct net_device *dev, char *buf) \ -{ \ - struct port_info *pi = netdev_priv(dev); \ - struct adapter *adap = pi->adapter; \ - return sprintf(buf, "%u\n", val_expr); \ -} \ -static ssize_t show_##name(struct device *d, struct device_attribute *attr, \ - char *buf) \ -{ \ - return attr_show(d, buf, format_##name); \ -} - -static ssize_t set_nfilters(struct net_device *dev, unsigned int val) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adap = pi->adapter; - int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0; - - if (adap->flags & FULL_INIT_DONE) - return -EBUSY; - if (val && adap->params.rev == 0) - return -EINVAL; - if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers - - min_tids) - return -EINVAL; - adap->params.mc5.nfilters = val; - return 0; -} - -static ssize_t store_nfilters(struct device *d, struct device_attribute *attr, - const char *buf, size_t len) -{ - return attr_store(d, buf, len, set_nfilters, 0, ~0); -} - -static ssize_t set_nservers(struct net_device *dev, unsigned int val) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adap = pi->adapter; - - if (adap->flags & FULL_INIT_DONE) - return -EBUSY; - if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters - - MC5_MIN_TIDS) - return -EINVAL; - adap->params.mc5.nservers = val; - return 0; -} - -static ssize_t store_nservers(struct device *d, struct device_attribute *attr, - const char *buf, size_t len) -{ - return attr_store(d, buf, len, set_nservers, 0, ~0); -} - -#define CXGB3_ATTR_R(name, val_expr) \ -CXGB3_SHOW(name, val_expr) \ -static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) - -#define CXGB3_ATTR_RW(name, val_expr, store_method) \ -CXGB3_SHOW(name, val_expr) \ -static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method) - -CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5)); -CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters); -CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers); - -static struct attribute *cxgb3_attrs[] = { - &dev_attr_cam_size.attr, - &dev_attr_nfilters.attr, - &dev_attr_nservers.attr, - NULL -}; - -static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs }; - -static ssize_t tm_attr_show(struct device *d, - char *buf, int sched) -{ - struct port_info *pi = netdev_priv(to_net_dev(d)); - struct adapter *adap = pi->adapter; - unsigned int v, addr, bpt, cpt; - ssize_t len; - - addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2; - rtnl_lock(); - t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr); - v = t3_read_reg(adap, A_TP_TM_PIO_DATA); - if (sched & 1) - v >>= 16; - bpt = (v >> 8) & 0xff; - cpt = v & 0xff; - if (!cpt) - len = sprintf(buf, "disabled\n"); - else { - v = (adap->params.vpd.cclk * 1000) / cpt; - len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125); - } - rtnl_unlock(); - return len; -} - -static ssize_t tm_attr_store(struct device *d, - const char *buf, size_t len, int sched) -{ - struct port_info *pi = netdev_priv(to_net_dev(d)); - struct adapter *adap = pi->adapter; - unsigned int val; - char *endp; - ssize_t ret; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - val = simple_strtoul(buf, &endp, 0); - if (endp == buf || val > 10000000) - return -EINVAL; - - rtnl_lock(); - ret = t3_config_sched(adap, val, sched); - if (!ret) - ret = len; - rtnl_unlock(); - return ret; -} - -#define TM_ATTR(name, sched) \ -static ssize_t show_##name(struct device *d, struct device_attribute *attr, \ - char *buf) \ -{ \ - return tm_attr_show(d, buf, sched); \ -} \ -static ssize_t store_##name(struct device *d, struct device_attribute *attr, \ - const char *buf, size_t len) \ -{ \ - return tm_attr_store(d, buf, len, sched); \ -} \ -static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name) - -TM_ATTR(sched0, 0); -TM_ATTR(sched1, 1); -TM_ATTR(sched2, 2); -TM_ATTR(sched3, 3); -TM_ATTR(sched4, 4); -TM_ATTR(sched5, 5); -TM_ATTR(sched6, 6); -TM_ATTR(sched7, 7); - -static struct attribute *offload_attrs[] = { - &dev_attr_sched0.attr, - &dev_attr_sched1.attr, - &dev_attr_sched2.attr, - &dev_attr_sched3.attr, - &dev_attr_sched4.attr, - &dev_attr_sched5.attr, - &dev_attr_sched6.attr, - &dev_attr_sched7.attr, - NULL -}; - -static struct attribute_group offload_attr_group = {.attrs = offload_attrs }; - -/* - * Sends an sk_buff to an offload queue driver - * after dealing with any active network taps. - */ -static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb) -{ - int ret; - - local_bh_disable(); - ret = t3_offload_tx(tdev, skb); - local_bh_enable(); - return ret; -} - -static int write_smt_entry(struct adapter *adapter, int idx) -{ - struct cpl_smt_write_req *req; - struct port_info *pi = netdev_priv(adapter->port[idx]); - struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL); - - if (!skb) - return -ENOMEM; - - req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req)); - req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); - OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx)); - req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */ - req->iff = idx; - memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN); - memcpy(req->src_mac1, pi->iscsic.mac_addr, ETH_ALEN); - skb->priority = 1; - offload_tx(&adapter->tdev, skb); - return 0; -} - -static int init_smt(struct adapter *adapter) -{ - int i; - - for_each_port(adapter, i) - write_smt_entry(adapter, i); - return 0; -} - -static void init_port_mtus(struct adapter *adapter) -{ - unsigned int mtus = adapter->port[0]->mtu; - - if (adapter->port[1]) - mtus |= adapter->port[1]->mtu << 16; - t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus); -} - -static int send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo, - int hi, int port) -{ - struct sk_buff *skb; - struct mngt_pktsched_wr *req; - int ret; - - skb = alloc_skb(sizeof(*req), GFP_KERNEL); - if (!skb) - skb = adap->nofail_skb; - if (!skb) - return -ENOMEM; - - req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req)); - req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT)); - req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET; - req->sched = sched; - req->idx = qidx; - req->min = lo; - req->max = hi; - req->binding = port; - ret = t3_mgmt_tx(adap, skb); - if (skb == adap->nofail_skb) { - adap->nofail_skb = alloc_skb(sizeof(struct cpl_set_tcb_field), - GFP_KERNEL); - if (!adap->nofail_skb) - ret = -ENOMEM; - } - - return ret; -} - -static int bind_qsets(struct adapter *adap) -{ - int i, j, err = 0; - - for_each_port(adap, i) { - const struct port_info *pi = adap2pinfo(adap, i); - - for (j = 0; j < pi->nqsets; ++j) { - int ret = send_pktsched_cmd(adap, 1, - pi->first_qset + j, -1, - -1, i); - if (ret) - err = ret; - } - } - - return err; -} - -#define FW_VERSION __stringify(FW_VERSION_MAJOR) "." \ - __stringify(FW_VERSION_MINOR) "." __stringify(FW_VERSION_MICRO) -#define FW_FNAME "cxgb3/t3fw-" FW_VERSION ".bin" -#define TPSRAM_VERSION __stringify(TP_VERSION_MAJOR) "." \ - __stringify(TP_VERSION_MINOR) "." __stringify(TP_VERSION_MICRO) -#define TPSRAM_NAME "cxgb3/t3%c_psram-" TPSRAM_VERSION ".bin" -#define AEL2005_OPT_EDC_NAME "cxgb3/ael2005_opt_edc.bin" -#define AEL2005_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin" -#define AEL2020_TWX_EDC_NAME "cxgb3/ael2020_twx_edc.bin" -MODULE_FIRMWARE(FW_FNAME); -MODULE_FIRMWARE("cxgb3/t3b_psram-" TPSRAM_VERSION ".bin"); -MODULE_FIRMWARE("cxgb3/t3c_psram-" TPSRAM_VERSION ".bin"); -MODULE_FIRMWARE(AEL2005_OPT_EDC_NAME); -MODULE_FIRMWARE(AEL2005_TWX_EDC_NAME); -MODULE_FIRMWARE(AEL2020_TWX_EDC_NAME); - -static inline const char *get_edc_fw_name(int edc_idx) -{ - const char *fw_name = NULL; - - switch (edc_idx) { - case EDC_OPT_AEL2005: - fw_name = AEL2005_OPT_EDC_NAME; - break; - case EDC_TWX_AEL2005: - fw_name = AEL2005_TWX_EDC_NAME; - break; - case EDC_TWX_AEL2020: - fw_name = AEL2020_TWX_EDC_NAME; - break; - } - return fw_name; -} - -int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size) -{ - struct adapter *adapter = phy->adapter; - const struct firmware *fw; - char buf[64]; - u32 csum; - const __be32 *p; - u16 *cache = phy->phy_cache; - int i, ret; - - snprintf(buf, sizeof(buf), get_edc_fw_name(edc_idx)); - - ret = request_firmware(&fw, buf, &adapter->pdev->dev); - if (ret < 0) { - dev_err(&adapter->pdev->dev, - "could not upgrade firmware: unable to load %s\n", - buf); - return ret; - } - - /* check size, take checksum in account */ - if (fw->size > size + 4) { - CH_ERR(adapter, "firmware image too large %u, expected %d\n", - (unsigned int)fw->size, size + 4); - ret = -EINVAL; - } - - /* compute checksum */ - p = (const __be32 *)fw->data; - for (csum = 0, i = 0; i < fw->size / sizeof(csum); i++) - csum += ntohl(p[i]); - - if (csum != 0xffffffff) { - CH_ERR(adapter, "corrupted firmware image, checksum %u\n", - csum); - ret = -EINVAL; - } - - for (i = 0; i < size / 4 ; i++) { - *cache++ = (be32_to_cpu(p[i]) & 0xffff0000) >> 16; - *cache++ = be32_to_cpu(p[i]) & 0xffff; - } - - release_firmware(fw); - - return ret; -} - -static int upgrade_fw(struct adapter *adap) -{ - int ret; - const struct firmware *fw; - struct device *dev = &adap->pdev->dev; - - ret = request_firmware(&fw, FW_FNAME, dev); - if (ret < 0) { - dev_err(dev, "could not upgrade firmware: unable to load %s\n", - FW_FNAME); - return ret; - } - ret = t3_load_fw(adap, fw->data, fw->size); - release_firmware(fw); - - if (ret == 0) - dev_info(dev, "successful upgrade to firmware %d.%d.%d\n", - FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO); - else - dev_err(dev, "failed to upgrade to firmware %d.%d.%d\n", - FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO); - - return ret; -} - -static inline char t3rev2char(struct adapter *adapter) -{ - char rev = 0; - - switch(adapter->params.rev) { - case T3_REV_B: - case T3_REV_B2: - rev = 'b'; - break; - case T3_REV_C: - rev = 'c'; - break; - } - return rev; -} - -static int update_tpsram(struct adapter *adap) -{ - const struct firmware *tpsram; - char buf[64]; - struct device *dev = &adap->pdev->dev; - int ret; - char rev; - - rev = t3rev2char(adap); - if (!rev) - return 0; - - snprintf(buf, sizeof(buf), TPSRAM_NAME, rev); - - ret = request_firmware(&tpsram, buf, dev); - if (ret < 0) { - dev_err(dev, "could not load TP SRAM: unable to load %s\n", - buf); - return ret; - } - - ret = t3_check_tpsram(adap, tpsram->data, tpsram->size); - if (ret) - goto release_tpsram; - - ret = t3_set_proto_sram(adap, tpsram->data); - if (ret == 0) - dev_info(dev, - "successful update of protocol engine " - "to %d.%d.%d\n", - TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO); - else - dev_err(dev, "failed to update of protocol engine %d.%d.%d\n", - TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO); - if (ret) - dev_err(dev, "loading protocol SRAM failed\n"); - -release_tpsram: - release_firmware(tpsram); - - return ret; -} - -/** - * cxgb_up - enable the adapter - * @adapter: adapter being enabled - * - * Called when the first port is enabled, this function performs the - * actions necessary to make an adapter operational, such as completing - * the initialization of HW modules, and enabling interrupts. - * - * Must be called with the rtnl lock held. - */ -static int cxgb_up(struct adapter *adap) -{ - int err; - - if (!(adap->flags & FULL_INIT_DONE)) { - err = t3_check_fw_version(adap); - if (err == -EINVAL) { - err = upgrade_fw(adap); - CH_WARN(adap, "FW upgrade to %d.%d.%d %s\n", - FW_VERSION_MAJOR, FW_VERSION_MINOR, - FW_VERSION_MICRO, err ? "failed" : "succeeded"); - } - - err = t3_check_tpsram_version(adap); - if (err == -EINVAL) { - err = update_tpsram(adap); - CH_WARN(adap, "TP upgrade to %d.%d.%d %s\n", - TP_VERSION_MAJOR, TP_VERSION_MINOR, - TP_VERSION_MICRO, err ? "failed" : "succeeded"); - } - - /* - * Clear interrupts now to catch errors if t3_init_hw fails. - * We clear them again later as initialization may trigger - * conditions that can interrupt. - */ - t3_intr_clear(adap); - - err = t3_init_hw(adap, 0); - if (err) - goto out; - - t3_set_reg_field(adap, A_TP_PARA_REG5, 0, F_RXDDPOFFINIT); - t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12)); - - err = setup_sge_qsets(adap); - if (err) - goto out; - - setup_rss(adap); - if (!(adap->flags & NAPI_INIT)) - init_napi(adap); - - t3_start_sge_timers(adap); - adap->flags |= FULL_INIT_DONE; - } - - t3_intr_clear(adap); - - if (adap->flags & USING_MSIX) { - name_msix_vecs(adap); - err = request_irq(adap->msix_info[0].vec, - t3_async_intr_handler, 0, - adap->msix_info[0].desc, adap); - if (err) - goto irq_err; - - err = request_msix_data_irqs(adap); - if (err) { - free_irq(adap->msix_info[0].vec, adap); - goto irq_err; - } - } else if ((err = request_irq(adap->pdev->irq, - t3_intr_handler(adap, - adap->sge.qs[0].rspq. - polling), - (adap->flags & USING_MSI) ? - 0 : IRQF_SHARED, - adap->name, adap))) - goto irq_err; - - enable_all_napi(adap); - t3_sge_start(adap); - t3_intr_enable(adap); - - if (adap->params.rev >= T3_REV_C && !(adap->flags & TP_PARITY_INIT) && - is_offload(adap) && init_tp_parity(adap) == 0) - adap->flags |= TP_PARITY_INIT; - - if (adap->flags & TP_PARITY_INIT) { - t3_write_reg(adap, A_TP_INT_CAUSE, - F_CMCACHEPERR | F_ARPLUTPERR); - t3_write_reg(adap, A_TP_INT_ENABLE, 0x7fbfffff); - } - - if (!(adap->flags & QUEUES_BOUND)) { - int ret = bind_qsets(adap); - - if (ret < 0) { - CH_ERR(adap, "failed to bind qsets, err %d\n", ret); - t3_intr_disable(adap); - free_irq_resources(adap); - err = ret; - goto out; - } - adap->flags |= QUEUES_BOUND; - } - -out: - return err; -irq_err: - CH_ERR(adap, "request_irq failed, err %d\n", err); - goto out; -} - -/* - * Release resources when all the ports and offloading have been stopped. - */ -static void cxgb_down(struct adapter *adapter, int on_wq) -{ - t3_sge_stop(adapter); - spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */ - t3_intr_disable(adapter); - spin_unlock_irq(&adapter->work_lock); - - free_irq_resources(adapter); - quiesce_rx(adapter); - t3_sge_stop(adapter); - if (!on_wq) - flush_workqueue(cxgb3_wq);/* wait for external IRQ handler */ -} - -static void schedule_chk_task(struct adapter *adap) -{ - unsigned int timeo; - - timeo = adap->params.linkpoll_period ? - (HZ * adap->params.linkpoll_period) / 10 : - adap->params.stats_update_period * HZ; - if (timeo) - queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo); -} - -static int offload_open(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct t3cdev *tdev = dev2t3cdev(dev); - int adap_up = adapter->open_device_map & PORT_MASK; - int err; - - if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) - return 0; - - if (!adap_up && (err = cxgb_up(adapter)) < 0) - goto out; - - t3_tp_set_offload_mode(adapter, 1); - tdev->lldev = adapter->port[0]; - err = cxgb3_offload_activate(adapter); - if (err) - goto out; - - init_port_mtus(adapter); - t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd, - adapter->params.b_wnd, - adapter->params.rev == 0 ? - adapter->port[0]->mtu : 0xffff); - init_smt(adapter); - - if (sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group)) - dev_dbg(&dev->dev, "cannot create sysfs group\n"); - - /* Call back all registered clients */ - cxgb3_add_clients(tdev); - -out: - /* restore them in case the offload module has changed them */ - if (err) { - t3_tp_set_offload_mode(adapter, 0); - clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); - cxgb3_set_dummy_ops(tdev); - } - return err; -} - -static int offload_close(struct t3cdev *tdev) -{ - struct adapter *adapter = tdev2adap(tdev); - struct t3c_data *td = T3C_DATA(tdev); - - if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) - return 0; - - /* Call back all registered clients */ - cxgb3_remove_clients(tdev); - - sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group); - - /* Flush work scheduled while releasing TIDs */ - flush_work_sync(&td->tid_release_task); - - tdev->lldev = NULL; - cxgb3_set_dummy_ops(tdev); - t3_tp_set_offload_mode(adapter, 0); - clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); - - if (!adapter->open_device_map) - cxgb_down(adapter, 0); - - cxgb3_offload_deactivate(adapter); - return 0; -} - -static int cxgb_open(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - int other_ports = adapter->open_device_map & PORT_MASK; - int err; - - if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) - return err; - - set_bit(pi->port_id, &adapter->open_device_map); - if (is_offload(adapter) && !ofld_disable) { - err = offload_open(dev); - if (err) - printk(KERN_WARNING - "Could not initialize offload capabilities\n"); - } - - netif_set_real_num_tx_queues(dev, pi->nqsets); - err = netif_set_real_num_rx_queues(dev, pi->nqsets); - if (err) - return err; - link_start(dev); - t3_port_intr_enable(adapter, pi->port_id); - netif_tx_start_all_queues(dev); - if (!other_ports) - schedule_chk_task(adapter); - - cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_UP, pi->port_id); - return 0; -} - -static int __cxgb_close(struct net_device *dev, int on_wq) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - - if (!adapter->open_device_map) - return 0; - - /* Stop link fault interrupts */ - t3_xgm_intr_disable(adapter, pi->port_id); - t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset); - - t3_port_intr_disable(adapter, pi->port_id); - netif_tx_stop_all_queues(dev); - pi->phy.ops->power_down(&pi->phy, 1); - netif_carrier_off(dev); - t3_mac_disable(&pi->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX); - - spin_lock_irq(&adapter->work_lock); /* sync with update task */ - clear_bit(pi->port_id, &adapter->open_device_map); - spin_unlock_irq(&adapter->work_lock); - - if (!(adapter->open_device_map & PORT_MASK)) - cancel_delayed_work_sync(&adapter->adap_check_task); - - if (!adapter->open_device_map) - cxgb_down(adapter, on_wq); - - cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_DOWN, pi->port_id); - return 0; -} - -static int cxgb_close(struct net_device *dev) -{ - return __cxgb_close(dev, 0); -} - -static struct net_device_stats *cxgb_get_stats(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct net_device_stats *ns = &pi->netstats; - const struct mac_stats *pstats; - - spin_lock(&adapter->stats_lock); - pstats = t3_mac_update_stats(&pi->mac); - spin_unlock(&adapter->stats_lock); - - ns->tx_bytes = pstats->tx_octets; - ns->tx_packets = pstats->tx_frames; - ns->rx_bytes = pstats->rx_octets; - ns->rx_packets = pstats->rx_frames; - ns->multicast = pstats->rx_mcast_frames; - - ns->tx_errors = pstats->tx_underrun; - ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs + - pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short + - pstats->rx_fifo_ovfl; - - /* detailed rx_errors */ - ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long; - ns->rx_over_errors = 0; - ns->rx_crc_errors = pstats->rx_fcs_errs; - ns->rx_frame_errors = pstats->rx_symbol_errs; - ns->rx_fifo_errors = pstats->rx_fifo_ovfl; - ns->rx_missed_errors = pstats->rx_cong_drops; - - /* detailed tx_errors */ - ns->tx_aborted_errors = 0; - ns->tx_carrier_errors = 0; - ns->tx_fifo_errors = pstats->tx_underrun; - ns->tx_heartbeat_errors = 0; - ns->tx_window_errors = 0; - return ns; -} - -static u32 get_msglevel(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - return adapter->msg_enable; -} - -static void set_msglevel(struct net_device *dev, u32 val) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - adapter->msg_enable = val; -} - -static char stats_strings[][ETH_GSTRING_LEN] = { - "TxOctetsOK ", - "TxFramesOK ", - "TxMulticastFramesOK", - "TxBroadcastFramesOK", - "TxPauseFrames ", - "TxUnderrun ", - "TxExtUnderrun ", - - "TxFrames64 ", - "TxFrames65To127 ", - "TxFrames128To255 ", - "TxFrames256To511 ", - "TxFrames512To1023 ", - "TxFrames1024To1518 ", - "TxFrames1519ToMax ", - - "RxOctetsOK ", - "RxFramesOK ", - "RxMulticastFramesOK", - "RxBroadcastFramesOK", - "RxPauseFrames ", - "RxFCSErrors ", - "RxSymbolErrors ", - "RxShortErrors ", - "RxJabberErrors ", - "RxLengthErrors ", - "RxFIFOoverflow ", - - "RxFrames64 ", - "RxFrames65To127 ", - "RxFrames128To255 ", - "RxFrames256To511 ", - "RxFrames512To1023 ", - "RxFrames1024To1518 ", - "RxFrames1519ToMax ", - - "PhyFIFOErrors ", - "TSO ", - "VLANextractions ", - "VLANinsertions ", - "TxCsumOffload ", - "RxCsumGood ", - "LroAggregated ", - "LroFlushed ", - "LroNoDesc ", - "RxDrops ", - - "CheckTXEnToggled ", - "CheckResets ", - - "LinkFaults ", -}; - -static int get_sset_count(struct net_device *dev, int sset) -{ - switch (sset) { - case ETH_SS_STATS: - return ARRAY_SIZE(stats_strings); - default: - return -EOPNOTSUPP; - } -} - -#define T3_REGMAP_SIZE (3 * 1024) - -static int get_regs_len(struct net_device *dev) -{ - return T3_REGMAP_SIZE; -} - -static int get_eeprom_len(struct net_device *dev) -{ - return EEPROMSIZE; -} - -static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - u32 fw_vers = 0; - u32 tp_vers = 0; - - spin_lock(&adapter->stats_lock); - t3_get_fw_version(adapter, &fw_vers); - t3_get_tp_version(adapter, &tp_vers); - spin_unlock(&adapter->stats_lock); - - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, pci_name(adapter->pdev)); - if (!fw_vers) - strcpy(info->fw_version, "N/A"); - else { - snprintf(info->fw_version, sizeof(info->fw_version), - "%s %u.%u.%u TP %u.%u.%u", - G_FW_VERSION_TYPE(fw_vers) ? "T" : "N", - G_FW_VERSION_MAJOR(fw_vers), - G_FW_VERSION_MINOR(fw_vers), - G_FW_VERSION_MICRO(fw_vers), - G_TP_VERSION_MAJOR(tp_vers), - G_TP_VERSION_MINOR(tp_vers), - G_TP_VERSION_MICRO(tp_vers)); - } -} - -static void get_strings(struct net_device *dev, u32 stringset, u8 * data) -{ - if (stringset == ETH_SS_STATS) - memcpy(data, stats_strings, sizeof(stats_strings)); -} - -static unsigned long collect_sge_port_stats(struct adapter *adapter, - struct port_info *p, int idx) -{ - int i; - unsigned long tot = 0; - - for (i = p->first_qset; i < p->first_qset + p->nqsets; ++i) - tot += adapter->sge.qs[i].port_stats[idx]; - return tot; -} - -static void get_stats(struct net_device *dev, struct ethtool_stats *stats, - u64 *data) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - const struct mac_stats *s; - - spin_lock(&adapter->stats_lock); - s = t3_mac_update_stats(&pi->mac); - spin_unlock(&adapter->stats_lock); - - *data++ = s->tx_octets; - *data++ = s->tx_frames; - *data++ = s->tx_mcast_frames; - *data++ = s->tx_bcast_frames; - *data++ = s->tx_pause; - *data++ = s->tx_underrun; - *data++ = s->tx_fifo_urun; - - *data++ = s->tx_frames_64; - *data++ = s->tx_frames_65_127; - *data++ = s->tx_frames_128_255; - *data++ = s->tx_frames_256_511; - *data++ = s->tx_frames_512_1023; - *data++ = s->tx_frames_1024_1518; - *data++ = s->tx_frames_1519_max; - - *data++ = s->rx_octets; - *data++ = s->rx_frames; - *data++ = s->rx_mcast_frames; - *data++ = s->rx_bcast_frames; - *data++ = s->rx_pause; - *data++ = s->rx_fcs_errs; - *data++ = s->rx_symbol_errs; - *data++ = s->rx_short; - *data++ = s->rx_jabber; - *data++ = s->rx_too_long; - *data++ = s->rx_fifo_ovfl; - - *data++ = s->rx_frames_64; - *data++ = s->rx_frames_65_127; - *data++ = s->rx_frames_128_255; - *data++ = s->rx_frames_256_511; - *data++ = s->rx_frames_512_1023; - *data++ = s->rx_frames_1024_1518; - *data++ = s->rx_frames_1519_max; - - *data++ = pi->phy.fifo_errors; - - *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO); - *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX); - *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS); - *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM); - *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD); - *data++ = 0; - *data++ = 0; - *data++ = 0; - *data++ = s->rx_cong_drops; - - *data++ = s->num_toggled; - *data++ = s->num_resets; - - *data++ = s->link_faults; -} - -static inline void reg_block_dump(struct adapter *ap, void *buf, - unsigned int start, unsigned int end) -{ - u32 *p = buf + start; - - for (; start <= end; start += sizeof(u32)) - *p++ = t3_read_reg(ap, start); -} - -static void get_regs(struct net_device *dev, struct ethtool_regs *regs, - void *buf) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *ap = pi->adapter; - - /* - * Version scheme: - * bits 0..9: chip version - * bits 10..15: chip revision - * bit 31: set for PCIe cards - */ - regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31); - - /* - * We skip the MAC statistics registers because they are clear-on-read. - * Also reading multi-register stats would need to synchronize with the - * periodic mac stats accumulation. Hard to justify the complexity. - */ - memset(buf, 0, T3_REGMAP_SIZE); - reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN); - reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT); - reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE); - reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA); - reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3); - reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0, - XGM_REG(A_XGM_SERDES_STAT3, 1)); - reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1), - XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1)); -} - -static int restart_autoneg(struct net_device *dev) -{ - struct port_info *p = netdev_priv(dev); - - if (!netif_running(dev)) - return -EAGAIN; - if (p->link_config.autoneg != AUTONEG_ENABLE) - return -EINVAL; - p->phy.ops->autoneg_restart(&p->phy); - return 0; -} - -static int set_phys_id(struct net_device *dev, - enum ethtool_phys_id_state state) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - switch (state) { - case ETHTOOL_ID_ACTIVE: - return 1; /* cycle on/off once per second */ - - case ETHTOOL_ID_OFF: - t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, 0); - break; - - case ETHTOOL_ID_ON: - case ETHTOOL_ID_INACTIVE: - t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, - F_GPIO0_OUT_VAL); - } - - return 0; -} - -static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct port_info *p = netdev_priv(dev); - - cmd->supported = p->link_config.supported; - cmd->advertising = p->link_config.advertising; - - if (netif_carrier_ok(dev)) { - ethtool_cmd_speed_set(cmd, p->link_config.speed); - cmd->duplex = p->link_config.duplex; - } else { - ethtool_cmd_speed_set(cmd, -1); - cmd->duplex = -1; - } - - cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE; - cmd->phy_address = p->phy.mdio.prtad; - cmd->transceiver = XCVR_EXTERNAL; - cmd->autoneg = p->link_config.autoneg; - cmd->maxtxpkt = 0; - cmd->maxrxpkt = 0; - return 0; -} - -static int speed_duplex_to_caps(int speed, int duplex) -{ - int cap = 0; - - switch (speed) { - case SPEED_10: - if (duplex == DUPLEX_FULL) - cap = SUPPORTED_10baseT_Full; - else - cap = SUPPORTED_10baseT_Half; - break; - case SPEED_100: - if (duplex == DUPLEX_FULL) - cap = SUPPORTED_100baseT_Full; - else - cap = SUPPORTED_100baseT_Half; - break; - case SPEED_1000: - if (duplex == DUPLEX_FULL) - cap = SUPPORTED_1000baseT_Full; - else - cap = SUPPORTED_1000baseT_Half; - break; - case SPEED_10000: - if (duplex == DUPLEX_FULL) - cap = SUPPORTED_10000baseT_Full; - } - return cap; -} - -#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ - ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ - ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \ - ADVERTISED_10000baseT_Full) - -static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct port_info *p = netdev_priv(dev); - struct link_config *lc = &p->link_config; - - if (!(lc->supported & SUPPORTED_Autoneg)) { - /* - * PHY offers a single speed/duplex. See if that's what's - * being requested. - */ - if (cmd->autoneg == AUTONEG_DISABLE) { - u32 speed = ethtool_cmd_speed(cmd); - int cap = speed_duplex_to_caps(speed, cmd->duplex); - if (lc->supported & cap) - return 0; - } - return -EINVAL; - } - - if (cmd->autoneg == AUTONEG_DISABLE) { - u32 speed = ethtool_cmd_speed(cmd); - int cap = speed_duplex_to_caps(speed, cmd->duplex); - - if (!(lc->supported & cap) || (speed == SPEED_1000)) - return -EINVAL; - lc->requested_speed = speed; - lc->requested_duplex = cmd->duplex; - lc->advertising = 0; - } else { - cmd->advertising &= ADVERTISED_MASK; - cmd->advertising &= lc->supported; - if (!cmd->advertising) - return -EINVAL; - lc->requested_speed = SPEED_INVALID; - lc->requested_duplex = DUPLEX_INVALID; - lc->advertising = cmd->advertising | ADVERTISED_Autoneg; - } - lc->autoneg = cmd->autoneg; - if (netif_running(dev)) - t3_link_start(&p->phy, &p->mac, lc); - return 0; -} - -static void get_pauseparam(struct net_device *dev, - struct ethtool_pauseparam *epause) -{ - struct port_info *p = netdev_priv(dev); - - epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0; - epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0; - epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0; -} - -static int set_pauseparam(struct net_device *dev, - struct ethtool_pauseparam *epause) -{ - struct port_info *p = netdev_priv(dev); - struct link_config *lc = &p->link_config; - - if (epause->autoneg == AUTONEG_DISABLE) - lc->requested_fc = 0; - else if (lc->supported & SUPPORTED_Autoneg) - lc->requested_fc = PAUSE_AUTONEG; - else - return -EINVAL; - - if (epause->rx_pause) - lc->requested_fc |= PAUSE_RX; - if (epause->tx_pause) - lc->requested_fc |= PAUSE_TX; - if (lc->autoneg == AUTONEG_ENABLE) { - if (netif_running(dev)) - t3_link_start(&p->phy, &p->mac, lc); - } else { - lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); - if (netif_running(dev)) - t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc); - } - return 0; -} - -static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - const struct qset_params *q = &adapter->params.sge.qset[pi->first_qset]; - - e->rx_max_pending = MAX_RX_BUFFERS; - e->rx_mini_max_pending = 0; - e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS; - e->tx_max_pending = MAX_TXQ_ENTRIES; - - e->rx_pending = q->fl_size; - e->rx_mini_pending = q->rspq_size; - e->rx_jumbo_pending = q->jumbo_size; - e->tx_pending = q->txq_size[0]; -} - -static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct qset_params *q; - int i; - - if (e->rx_pending > MAX_RX_BUFFERS || - e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS || - e->tx_pending > MAX_TXQ_ENTRIES || - e->rx_mini_pending > MAX_RSPQ_ENTRIES || - e->rx_mini_pending < MIN_RSPQ_ENTRIES || - e->rx_pending < MIN_FL_ENTRIES || - e->rx_jumbo_pending < MIN_FL_ENTRIES || - e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES) - return -EINVAL; - - if (adapter->flags & FULL_INIT_DONE) - return -EBUSY; - - q = &adapter->params.sge.qset[pi->first_qset]; - for (i = 0; i < pi->nqsets; ++i, ++q) { - q->rspq_size = e->rx_mini_pending; - q->fl_size = e->rx_pending; - q->jumbo_size = e->rx_jumbo_pending; - q->txq_size[0] = e->tx_pending; - q->txq_size[1] = e->tx_pending; - q->txq_size[2] = e->tx_pending; - } - return 0; -} - -static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct qset_params *qsp; - struct sge_qset *qs; - int i; - - if (c->rx_coalesce_usecs * 10 > M_NEWTIMER) - return -EINVAL; - - for (i = 0; i < pi->nqsets; i++) { - qsp = &adapter->params.sge.qset[i]; - qs = &adapter->sge.qs[i]; - qsp->coalesce_usecs = c->rx_coalesce_usecs; - t3_update_qset_coalesce(qs, qsp); - } - - return 0; -} - -static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct qset_params *q = adapter->params.sge.qset; - - c->rx_coalesce_usecs = q->coalesce_usecs; - return 0; -} - -static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, - u8 * data) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - int i, err = 0; - - u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - e->magic = EEPROM_MAGIC; - for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) - err = t3_seeprom_read(adapter, i, (__le32 *) & buf[i]); - - if (!err) - memcpy(data, buf + e->offset, e->len); - kfree(buf); - return err; -} - -static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, - u8 * data) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - u32 aligned_offset, aligned_len; - __le32 *p; - u8 *buf; - int err; - - if (eeprom->magic != EEPROM_MAGIC) - return -EINVAL; - - aligned_offset = eeprom->offset & ~3; - aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; - - if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { - buf = kmalloc(aligned_len, GFP_KERNEL); - if (!buf) - return -ENOMEM; - err = t3_seeprom_read(adapter, aligned_offset, (__le32 *) buf); - if (!err && aligned_len > 4) - err = t3_seeprom_read(adapter, - aligned_offset + aligned_len - 4, - (__le32 *) & buf[aligned_len - 4]); - if (err) - goto out; - memcpy(buf + (eeprom->offset & 3), data, eeprom->len); - } else - buf = data; - - err = t3_seeprom_wp(adapter, 0); - if (err) - goto out; - - for (p = (__le32 *) buf; !err && aligned_len; aligned_len -= 4, p++) { - err = t3_seeprom_write(adapter, aligned_offset, *p); - aligned_offset += 4; - } - - if (!err) - err = t3_seeprom_wp(adapter, 1); -out: - if (buf != data) - kfree(buf); - return err; -} - -static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) -{ - wol->supported = 0; - wol->wolopts = 0; - memset(&wol->sopass, 0, sizeof(wol->sopass)); -} - -static const struct ethtool_ops cxgb_ethtool_ops = { - .get_settings = get_settings, - .set_settings = set_settings, - .get_drvinfo = get_drvinfo, - .get_msglevel = get_msglevel, - .set_msglevel = set_msglevel, - .get_ringparam = get_sge_param, - .set_ringparam = set_sge_param, - .get_coalesce = get_coalesce, - .set_coalesce = set_coalesce, - .get_eeprom_len = get_eeprom_len, - .get_eeprom = get_eeprom, - .set_eeprom = set_eeprom, - .get_pauseparam = get_pauseparam, - .set_pauseparam = set_pauseparam, - .get_link = ethtool_op_get_link, - .get_strings = get_strings, - .set_phys_id = set_phys_id, - .nway_reset = restart_autoneg, - .get_sset_count = get_sset_count, - .get_ethtool_stats = get_stats, - .get_regs_len = get_regs_len, - .get_regs = get_regs, - .get_wol = get_wol, -}; - -static int in_range(int val, int lo, int hi) -{ - return val < 0 || (val <= hi && val >= lo); -} - -static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - u32 cmd; - int ret; - - if (copy_from_user(&cmd, useraddr, sizeof(cmd))) - return -EFAULT; - - switch (cmd) { - case CHELSIO_SET_QSET_PARAMS:{ - int i; - struct qset_params *q; - struct ch_qset_params t; - int q1 = pi->first_qset; - int nqsets = pi->nqsets; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (copy_from_user(&t, useraddr, sizeof(t))) - return -EFAULT; - if (t.qset_idx >= SGE_QSETS) - return -EINVAL; - if (!in_range(t.intr_lat, 0, M_NEWTIMER) || - !in_range(t.cong_thres, 0, 255) || - !in_range(t.txq_size[0], MIN_TXQ_ENTRIES, - MAX_TXQ_ENTRIES) || - !in_range(t.txq_size[1], MIN_TXQ_ENTRIES, - MAX_TXQ_ENTRIES) || - !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES, - MAX_CTRL_TXQ_ENTRIES) || - !in_range(t.fl_size[0], MIN_FL_ENTRIES, - MAX_RX_BUFFERS) || - !in_range(t.fl_size[1], MIN_FL_ENTRIES, - MAX_RX_JUMBO_BUFFERS) || - !in_range(t.rspq_size, MIN_RSPQ_ENTRIES, - MAX_RSPQ_ENTRIES)) - return -EINVAL; - - if ((adapter->flags & FULL_INIT_DONE) && - (t.rspq_size >= 0 || t.fl_size[0] >= 0 || - t.fl_size[1] >= 0 || t.txq_size[0] >= 0 || - t.txq_size[1] >= 0 || t.txq_size[2] >= 0 || - t.polling >= 0 || t.cong_thres >= 0)) - return -EBUSY; - - /* Allow setting of any available qset when offload enabled */ - if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) { - q1 = 0; - for_each_port(adapter, i) { - pi = adap2pinfo(adapter, i); - nqsets += pi->first_qset + pi->nqsets; - } - } - - if (t.qset_idx < q1) - return -EINVAL; - if (t.qset_idx > q1 + nqsets - 1) - return -EINVAL; - - q = &adapter->params.sge.qset[t.qset_idx]; - - if (t.rspq_size >= 0) - q->rspq_size = t.rspq_size; - if (t.fl_size[0] >= 0) - q->fl_size = t.fl_size[0]; - if (t.fl_size[1] >= 0) - q->jumbo_size = t.fl_size[1]; - if (t.txq_size[0] >= 0) - q->txq_size[0] = t.txq_size[0]; - if (t.txq_size[1] >= 0) - q->txq_size[1] = t.txq_size[1]; - if (t.txq_size[2] >= 0) - q->txq_size[2] = t.txq_size[2]; - if (t.cong_thres >= 0) - q->cong_thres = t.cong_thres; - if (t.intr_lat >= 0) { - struct sge_qset *qs = - &adapter->sge.qs[t.qset_idx]; - - q->coalesce_usecs = t.intr_lat; - t3_update_qset_coalesce(qs, q); - } - if (t.polling >= 0) { - if (adapter->flags & USING_MSIX) - q->polling = t.polling; - else { - /* No polling with INTx for T3A */ - if (adapter->params.rev == 0 && - !(adapter->flags & USING_MSI)) - t.polling = 0; - - for (i = 0; i < SGE_QSETS; i++) { - q = &adapter->params.sge. - qset[i]; - q->polling = t.polling; - } - } - } - - if (t.lro >= 0) { - if (t.lro) - dev->wanted_features |= NETIF_F_GRO; - else - dev->wanted_features &= ~NETIF_F_GRO; - netdev_update_features(dev); - } - - break; - } - case CHELSIO_GET_QSET_PARAMS:{ - struct qset_params *q; - struct ch_qset_params t; - int q1 = pi->first_qset; - int nqsets = pi->nqsets; - int i; - - if (copy_from_user(&t, useraddr, sizeof(t))) - return -EFAULT; - - /* Display qsets for all ports when offload enabled */ - if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) { - q1 = 0; - for_each_port(adapter, i) { - pi = adap2pinfo(adapter, i); - nqsets = pi->first_qset + pi->nqsets; - } - } - - if (t.qset_idx >= nqsets) - return -EINVAL; - - q = &adapter->params.sge.qset[q1 + t.qset_idx]; - t.rspq_size = q->rspq_size; - t.txq_size[0] = q->txq_size[0]; - t.txq_size[1] = q->txq_size[1]; - t.txq_size[2] = q->txq_size[2]; - t.fl_size[0] = q->fl_size; - t.fl_size[1] = q->jumbo_size; - t.polling = q->polling; - t.lro = !!(dev->features & NETIF_F_GRO); - t.intr_lat = q->coalesce_usecs; - t.cong_thres = q->cong_thres; - t.qnum = q1; - - if (adapter->flags & USING_MSIX) - t.vector = adapter->msix_info[q1 + t.qset_idx + 1].vec; - else - t.vector = adapter->pdev->irq; - - if (copy_to_user(useraddr, &t, sizeof(t))) - return -EFAULT; - break; - } - case CHELSIO_SET_QSET_NUM:{ - struct ch_reg edata; - unsigned int i, first_qset = 0, other_qsets = 0; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (adapter->flags & FULL_INIT_DONE) - return -EBUSY; - if (copy_from_user(&edata, useraddr, sizeof(edata))) - return -EFAULT; - if (edata.val < 1 || - (edata.val > 1 && !(adapter->flags & USING_MSIX))) - return -EINVAL; - - for_each_port(adapter, i) - if (adapter->port[i] && adapter->port[i] != dev) - other_qsets += adap2pinfo(adapter, i)->nqsets; - - if (edata.val + other_qsets > SGE_QSETS) - return -EINVAL; - - pi->nqsets = edata.val; - - for_each_port(adapter, i) - if (adapter->port[i]) { - pi = adap2pinfo(adapter, i); - pi->first_qset = first_qset; - first_qset += pi->nqsets; - } - break; - } - case CHELSIO_GET_QSET_NUM:{ - struct ch_reg edata; - - memset(&edata, 0, sizeof(struct ch_reg)); - - edata.cmd = CHELSIO_GET_QSET_NUM; - edata.val = pi->nqsets; - if (copy_to_user(useraddr, &edata, sizeof(edata))) - return -EFAULT; - break; - } - case CHELSIO_LOAD_FW:{ - u8 *fw_data; - struct ch_mem_range t; - - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - if (copy_from_user(&t, useraddr, sizeof(t))) - return -EFAULT; - /* Check t.len sanity ? */ - fw_data = memdup_user(useraddr + sizeof(t), t.len); - if (IS_ERR(fw_data)) - return PTR_ERR(fw_data); - - ret = t3_load_fw(adapter, fw_data, t.len); - kfree(fw_data); - if (ret) - return ret; - break; - } - case CHELSIO_SETMTUTAB:{ - struct ch_mtus m; - int i; - - if (!is_offload(adapter)) - return -EOPNOTSUPP; - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (offload_running(adapter)) - return -EBUSY; - if (copy_from_user(&m, useraddr, sizeof(m))) - return -EFAULT; - if (m.nmtus != NMTUS) - return -EINVAL; - if (m.mtus[0] < 81) /* accommodate SACK */ - return -EINVAL; - - /* MTUs must be in ascending order */ - for (i = 1; i < NMTUS; ++i) - if (m.mtus[i] < m.mtus[i - 1]) - return -EINVAL; - - memcpy(adapter->params.mtus, m.mtus, - sizeof(adapter->params.mtus)); - break; - } - case CHELSIO_GET_PM:{ - struct tp_params *p = &adapter->params.tp; - struct ch_pm m = {.cmd = CHELSIO_GET_PM }; - - if (!is_offload(adapter)) - return -EOPNOTSUPP; - m.tx_pg_sz = p->tx_pg_size; - m.tx_num_pg = p->tx_num_pgs; - m.rx_pg_sz = p->rx_pg_size; - m.rx_num_pg = p->rx_num_pgs; - m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan; - if (copy_to_user(useraddr, &m, sizeof(m))) - return -EFAULT; - break; - } - case CHELSIO_SET_PM:{ - struct ch_pm m; - struct tp_params *p = &adapter->params.tp; - - if (!is_offload(adapter)) - return -EOPNOTSUPP; - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (adapter->flags & FULL_INIT_DONE) - return -EBUSY; - if (copy_from_user(&m, useraddr, sizeof(m))) - return -EFAULT; - if (!is_power_of_2(m.rx_pg_sz) || - !is_power_of_2(m.tx_pg_sz)) - return -EINVAL; /* not power of 2 */ - if (!(m.rx_pg_sz & 0x14000)) - return -EINVAL; /* not 16KB or 64KB */ - if (!(m.tx_pg_sz & 0x1554000)) - return -EINVAL; - if (m.tx_num_pg == -1) - m.tx_num_pg = p->tx_num_pgs; - if (m.rx_num_pg == -1) - m.rx_num_pg = p->rx_num_pgs; - if (m.tx_num_pg % 24 || m.rx_num_pg % 24) - return -EINVAL; - if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size || - m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size) - return -EINVAL; - p->rx_pg_size = m.rx_pg_sz; - p->tx_pg_size = m.tx_pg_sz; - p->rx_num_pgs = m.rx_num_pg; - p->tx_num_pgs = m.tx_num_pg; - break; - } - case CHELSIO_GET_MEM:{ - struct ch_mem_range t; - struct mc7 *mem; - u64 buf[32]; - - if (!is_offload(adapter)) - return -EOPNOTSUPP; - if (!(adapter->flags & FULL_INIT_DONE)) - return -EIO; /* need the memory controllers */ - if (copy_from_user(&t, useraddr, sizeof(t))) - return -EFAULT; - if ((t.addr & 7) || (t.len & 7)) - return -EINVAL; - if (t.mem_id == MEM_CM) - mem = &adapter->cm; - else if (t.mem_id == MEM_PMRX) - mem = &adapter->pmrx; - else if (t.mem_id == MEM_PMTX) - mem = &adapter->pmtx; - else - return -EINVAL; - - /* - * Version scheme: - * bits 0..9: chip version - * bits 10..15: chip revision - */ - t.version = 3 | (adapter->params.rev << 10); - if (copy_to_user(useraddr, &t, sizeof(t))) - return -EFAULT; - - /* - * Read 256 bytes at a time as len can be large and we don't - * want to use huge intermediate buffers. - */ - useraddr += sizeof(t); /* advance to start of buffer */ - while (t.len) { - unsigned int chunk = - min_t(unsigned int, t.len, sizeof(buf)); - - ret = - t3_mc7_bd_read(mem, t.addr / 8, chunk / 8, - buf); - if (ret) - return ret; - if (copy_to_user(useraddr, buf, chunk)) - return -EFAULT; - useraddr += chunk; - t.addr += chunk; - t.len -= chunk; - } - break; - } - case CHELSIO_SET_TRACE_FILTER:{ - struct ch_trace t; - const struct trace_params *tp; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (!offload_running(adapter)) - return -EAGAIN; - if (copy_from_user(&t, useraddr, sizeof(t))) - return -EFAULT; - - tp = (const struct trace_params *)&t.sip; - if (t.config_tx) - t3_config_trace_filter(adapter, tp, 0, - t.invert_match, - t.trace_tx); - if (t.config_rx) - t3_config_trace_filter(adapter, tp, 1, - t.invert_match, - t.trace_rx); - break; - } - default: - return -EOPNOTSUPP; - } - return 0; -} - -static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) -{ - struct mii_ioctl_data *data = if_mii(req); - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - switch (cmd) { - case SIOCGMIIREG: - case SIOCSMIIREG: - /* Convert phy_id from older PRTAD/DEVAD format */ - if (is_10G(adapter) && - !mdio_phy_id_is_c45(data->phy_id) && - (data->phy_id & 0x1f00) && - !(data->phy_id & 0xe0e0)) - data->phy_id = mdio_phy_id_c45(data->phy_id >> 8, - data->phy_id & 0x1f); - /* FALLTHRU */ - case SIOCGMIIPHY: - return mdio_mii_ioctl(&pi->phy.mdio, data, cmd); - case SIOCCHIOCTL: - return cxgb_extension_ioctl(dev, req->ifr_data); - default: - return -EOPNOTSUPP; - } -} - -static int cxgb_change_mtu(struct net_device *dev, int new_mtu) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - int ret; - - if (new_mtu < 81) /* accommodate SACK */ - return -EINVAL; - if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu))) - return ret; - dev->mtu = new_mtu; - init_port_mtus(adapter); - if (adapter->params.rev == 0 && offload_running(adapter)) - t3_load_mtus(adapter, adapter->params.mtus, - adapter->params.a_wnd, adapter->params.b_wnd, - adapter->port[0]->mtu); - return 0; -} - -static int cxgb_set_mac_addr(struct net_device *dev, void *p) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - struct sockaddr *addr = p; - - if (!is_valid_ether_addr(addr->sa_data)) - return -EINVAL; - - memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); - t3_mac_set_address(&pi->mac, LAN_MAC_IDX, dev->dev_addr); - if (offload_running(adapter)) - write_smt_entry(adapter, pi->port_id); - return 0; -} - -/** - * t3_synchronize_rx - wait for current Rx processing on a port to complete - * @adap: the adapter - * @p: the port - * - * Ensures that current Rx processing on any of the queues associated with - * the given port completes before returning. We do this by acquiring and - * releasing the locks of the response queues associated with the port. - */ -static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) -{ - int i; - - for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) { - struct sge_rspq *q = &adap->sge.qs[i].rspq; - - spin_lock_irq(&q->lock); - spin_unlock_irq(&q->lock); - } -} - -static void cxgb_vlan_mode(struct net_device *dev, u32 features) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - if (adapter->params.rev > 0) { - t3_set_vlan_accel(adapter, 1 << pi->port_id, - features & NETIF_F_HW_VLAN_RX); - } else { - /* single control for all ports */ - unsigned int i, have_vlans = features & NETIF_F_HW_VLAN_RX; - - for_each_port(adapter, i) - have_vlans |= - adapter->port[i]->features & NETIF_F_HW_VLAN_RX; - - t3_set_vlan_accel(adapter, 1, have_vlans); - } - t3_synchronize_rx(adapter, pi); -} - -static u32 cxgb_fix_features(struct net_device *dev, u32 features) -{ - /* - * Since there is no support for separate rx/tx vlan accel - * enable/disable make sure tx flag is always in same state as rx. - */ - if (features & NETIF_F_HW_VLAN_RX) - features |= NETIF_F_HW_VLAN_TX; - else - features &= ~NETIF_F_HW_VLAN_TX; - - return features; -} - -static int cxgb_set_features(struct net_device *dev, u32 features) -{ - u32 changed = dev->features ^ features; - - if (changed & NETIF_F_HW_VLAN_RX) - cxgb_vlan_mode(dev, features); - - return 0; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void cxgb_netpoll(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - int qidx; - - for (qidx = pi->first_qset; qidx < pi->first_qset + pi->nqsets; qidx++) { - struct sge_qset *qs = &adapter->sge.qs[qidx]; - void *source; - - if (adapter->flags & USING_MSIX) - source = qs; - else - source = adapter; - - t3_intr_handler(adapter, qs->rspq.polling) (0, source); - } -} -#endif - -/* - * Periodic accumulation of MAC statistics. - */ -static void mac_stats_update(struct adapter *adapter) -{ - int i; - - for_each_port(adapter, i) { - struct net_device *dev = adapter->port[i]; - struct port_info *p = netdev_priv(dev); - - if (netif_running(dev)) { - spin_lock(&adapter->stats_lock); - t3_mac_update_stats(&p->mac); - spin_unlock(&adapter->stats_lock); - } - } -} - -static void check_link_status(struct adapter *adapter) -{ - int i; - - for_each_port(adapter, i) { - struct net_device *dev = adapter->port[i]; - struct port_info *p = netdev_priv(dev); - int link_fault; - - spin_lock_irq(&adapter->work_lock); - link_fault = p->link_fault; - spin_unlock_irq(&adapter->work_lock); - - if (link_fault) { - t3_link_fault(adapter, i); - continue; - } - - if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev)) { - t3_xgm_intr_disable(adapter, i); - t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset); - - t3_link_changed(adapter, i); - t3_xgm_intr_enable(adapter, i); - } - } -} - -static void check_t3b2_mac(struct adapter *adapter) -{ - int i; - - if (!rtnl_trylock()) /* synchronize with ifdown */ - return; - - for_each_port(adapter, i) { - struct net_device *dev = adapter->port[i]; - struct port_info *p = netdev_priv(dev); - int status; - - if (!netif_running(dev)) - continue; - - status = 0; - if (netif_running(dev) && netif_carrier_ok(dev)) - status = t3b2_mac_watchdog_task(&p->mac); - if (status == 1) - p->mac.stats.num_toggled++; - else if (status == 2) { - struct cmac *mac = &p->mac; - - t3_mac_set_mtu(mac, dev->mtu); - t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr); - cxgb_set_rxmode(dev); - t3_link_start(&p->phy, mac, &p->link_config); - t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); - t3_port_intr_enable(adapter, p->port_id); - p->mac.stats.num_resets++; - } - } - rtnl_unlock(); -} - - -static void t3_adap_check_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - adap_check_task.work); - const struct adapter_params *p = &adapter->params; - int port; - unsigned int v, status, reset; - - adapter->check_task_cnt++; - - check_link_status(adapter); - - /* Accumulate MAC stats if needed */ - if (!p->linkpoll_period || - (adapter->check_task_cnt * p->linkpoll_period) / 10 >= - p->stats_update_period) { - mac_stats_update(adapter); - adapter->check_task_cnt = 0; - } - - if (p->rev == T3_REV_B2) - check_t3b2_mac(adapter); - - /* - * Scan the XGMAC's to check for various conditions which we want to - * monitor in a periodic polling manner rather than via an interrupt - * condition. This is used for conditions which would otherwise flood - * the system with interrupts and we only really need to know that the - * conditions are "happening" ... For each condition we count the - * detection of the condition and reset it for the next polling loop. - */ - for_each_port(adapter, port) { - struct cmac *mac = &adap2pinfo(adapter, port)->mac; - u32 cause; - - cause = t3_read_reg(adapter, A_XGM_INT_CAUSE + mac->offset); - reset = 0; - if (cause & F_RXFIFO_OVERFLOW) { - mac->stats.rx_fifo_ovfl++; - reset |= F_RXFIFO_OVERFLOW; - } - - t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, reset); - } - - /* - * We do the same as above for FL_EMPTY interrupts. - */ - status = t3_read_reg(adapter, A_SG_INT_CAUSE); - reset = 0; - - if (status & F_FLEMPTY) { - struct sge_qset *qs = &adapter->sge.qs[0]; - int i = 0; - - reset |= F_FLEMPTY; - - v = (t3_read_reg(adapter, A_SG_RSPQ_FL_STATUS) >> S_FL0EMPTY) & - 0xffff; - - while (v) { - qs->fl[i].empty += (v & 1); - if (i) - qs++; - i ^= 1; - v >>= 1; - } - } - - t3_write_reg(adapter, A_SG_INT_CAUSE, reset); - - /* Schedule the next check update if any port is active. */ - spin_lock_irq(&adapter->work_lock); - if (adapter->open_device_map & PORT_MASK) - schedule_chk_task(adapter); - spin_unlock_irq(&adapter->work_lock); -} - -static void db_full_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - db_full_task); - - cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_FULL, 0); -} - -static void db_empty_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - db_empty_task); - - cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_EMPTY, 0); -} - -static void db_drop_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - db_drop_task); - unsigned long delay = 1000; - unsigned short r; - - cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_DROP, 0); - - /* - * Sleep a while before ringing the driver qset dbs. - * The delay is between 1000-2023 usecs. - */ - get_random_bytes(&r, 2); - delay += r & 1023; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(usecs_to_jiffies(delay)); - ring_dbs(adapter); -} - -/* - * Processes external (PHY) interrupts in process context. - */ -static void ext_intr_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - ext_intr_handler_task); - int i; - - /* Disable link fault interrupts */ - for_each_port(adapter, i) { - struct net_device *dev = adapter->port[i]; - struct port_info *p = netdev_priv(dev); - - t3_xgm_intr_disable(adapter, i); - t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset); - } - - /* Re-enable link fault interrupts */ - t3_phy_intr_handler(adapter); - - for_each_port(adapter, i) - t3_xgm_intr_enable(adapter, i); - - /* Now reenable external interrupts */ - spin_lock_irq(&adapter->work_lock); - if (adapter->slow_intr_mask) { - adapter->slow_intr_mask |= F_T3DBG; - t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG); - t3_write_reg(adapter, A_PL_INT_ENABLE0, - adapter->slow_intr_mask); - } - spin_unlock_irq(&adapter->work_lock); -} - -/* - * Interrupt-context handler for external (PHY) interrupts. - */ -void t3_os_ext_intr_handler(struct adapter *adapter) -{ - /* - * Schedule a task to handle external interrupts as they may be slow - * and we use a mutex to protect MDIO registers. We disable PHY - * interrupts in the meantime and let the task reenable them when - * it's done. - */ - spin_lock(&adapter->work_lock); - if (adapter->slow_intr_mask) { - adapter->slow_intr_mask &= ~F_T3DBG; - t3_write_reg(adapter, A_PL_INT_ENABLE0, - adapter->slow_intr_mask); - queue_work(cxgb3_wq, &adapter->ext_intr_handler_task); - } - spin_unlock(&adapter->work_lock); -} - -void t3_os_link_fault_handler(struct adapter *adapter, int port_id) -{ - struct net_device *netdev = adapter->port[port_id]; - struct port_info *pi = netdev_priv(netdev); - - spin_lock(&adapter->work_lock); - pi->link_fault = 1; - spin_unlock(&adapter->work_lock); -} - -static int t3_adapter_error(struct adapter *adapter, int reset, int on_wq) -{ - int i, ret = 0; - - if (is_offload(adapter) && - test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) { - cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_DOWN, 0); - offload_close(&adapter->tdev); - } - - /* Stop all ports */ - for_each_port(adapter, i) { - struct net_device *netdev = adapter->port[i]; - - if (netif_running(netdev)) - __cxgb_close(netdev, on_wq); - } - - /* Stop SGE timers */ - t3_stop_sge_timers(adapter); - - adapter->flags &= ~FULL_INIT_DONE; - - if (reset) - ret = t3_reset_adapter(adapter); - - pci_disable_device(adapter->pdev); - - return ret; -} - -static int t3_reenable_adapter(struct adapter *adapter) -{ - if (pci_enable_device(adapter->pdev)) { - dev_err(&adapter->pdev->dev, - "Cannot re-enable PCI device after reset.\n"); - goto err; - } - pci_set_master(adapter->pdev); - pci_restore_state(adapter->pdev); - pci_save_state(adapter->pdev); - - /* Free sge resources */ - t3_free_sge_resources(adapter); - - if (t3_replay_prep_adapter(adapter)) - goto err; - - return 0; -err: - return -1; -} - -static void t3_resume_ports(struct adapter *adapter) -{ - int i; - - /* Restart the ports */ - for_each_port(adapter, i) { - struct net_device *netdev = adapter->port[i]; - - if (netif_running(netdev)) { - if (cxgb_open(netdev)) { - dev_err(&adapter->pdev->dev, - "can't bring device back up" - " after reset\n"); - continue; - } - } - } - - if (is_offload(adapter) && !ofld_disable) - cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_UP, 0); -} - -/* - * processes a fatal error. - * Bring the ports down, reset the chip, bring the ports back up. - */ -static void fatal_error_task(struct work_struct *work) -{ - struct adapter *adapter = container_of(work, struct adapter, - fatal_error_handler_task); - int err = 0; - - rtnl_lock(); - err = t3_adapter_error(adapter, 1, 1); - if (!err) - err = t3_reenable_adapter(adapter); - if (!err) - t3_resume_ports(adapter); - - CH_ALERT(adapter, "adapter reset %s\n", err ? "failed" : "succeeded"); - rtnl_unlock(); -} - -void t3_fatal_err(struct adapter *adapter) -{ - unsigned int fw_status[4]; - - if (adapter->flags & FULL_INIT_DONE) { - t3_sge_stop(adapter); - t3_write_reg(adapter, A_XGM_TX_CTRL, 0); - t3_write_reg(adapter, A_XGM_RX_CTRL, 0); - t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0); - t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0); - - spin_lock(&adapter->work_lock); - t3_intr_disable(adapter); - queue_work(cxgb3_wq, &adapter->fatal_error_handler_task); - spin_unlock(&adapter->work_lock); - } - CH_ALERT(adapter, "encountered fatal error, operation suspended\n"); - if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status)) - CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n", - fw_status[0], fw_status[1], - fw_status[2], fw_status[3]); -} - -/** - * t3_io_error_detected - called when PCI error is detected - * @pdev: Pointer to PCI device - * @state: The current pci connection state - * - * This function is called after a PCI bus error affecting - * this device has been detected. - */ -static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev, - pci_channel_state_t state) -{ - struct adapter *adapter = pci_get_drvdata(pdev); - - if (state == pci_channel_io_perm_failure) - return PCI_ERS_RESULT_DISCONNECT; - - t3_adapter_error(adapter, 0, 0); - - /* Request a slot reset. */ - return PCI_ERS_RESULT_NEED_RESET; -} - -/** - * t3_io_slot_reset - called after the pci bus has been reset. - * @pdev: Pointer to PCI device - * - * Restart the card from scratch, as if from a cold-boot. - */ -static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev) -{ - struct adapter *adapter = pci_get_drvdata(pdev); - - if (!t3_reenable_adapter(adapter)) - return PCI_ERS_RESULT_RECOVERED; - - return PCI_ERS_RESULT_DISCONNECT; -} - -/** - * t3_io_resume - called when traffic can start flowing again. - * @pdev: Pointer to PCI device - * - * This callback is called when the error recovery driver tells us that - * its OK to resume normal operation. - */ -static void t3_io_resume(struct pci_dev *pdev) -{ - struct adapter *adapter = pci_get_drvdata(pdev); - - CH_ALERT(adapter, "adapter recovering, PEX ERR 0x%x\n", - t3_read_reg(adapter, A_PCIE_PEX_ERR)); - - t3_resume_ports(adapter); -} - -static struct pci_error_handlers t3_err_handler = { - .error_detected = t3_io_error_detected, - .slot_reset = t3_io_slot_reset, - .resume = t3_io_resume, -}; - -/* - * Set the number of qsets based on the number of CPUs and the number of ports, - * not to exceed the number of available qsets, assuming there are enough qsets - * per port in HW. - */ -static void set_nqsets(struct adapter *adap) -{ - int i, j = 0; - int num_cpus = num_online_cpus(); - int hwports = adap->params.nports; - int nqsets = adap->msix_nvectors - 1; - - if (adap->params.rev > 0 && adap->flags & USING_MSIX) { - if (hwports == 2 && - (hwports * nqsets > SGE_QSETS || - num_cpus >= nqsets / hwports)) - nqsets /= hwports; - if (nqsets > num_cpus) - nqsets = num_cpus; - if (nqsets < 1 || hwports == 4) - nqsets = 1; - } else - nqsets = 1; - - for_each_port(adap, i) { - struct port_info *pi = adap2pinfo(adap, i); - - pi->first_qset = j; - pi->nqsets = nqsets; - j = pi->first_qset + nqsets; - - dev_info(&adap->pdev->dev, - "Port %d using %d queue sets.\n", i, nqsets); - } -} - -static int __devinit cxgb_enable_msix(struct adapter *adap) -{ - struct msix_entry entries[SGE_QSETS + 1]; - int vectors; - int i, err; - - vectors = ARRAY_SIZE(entries); - for (i = 0; i < vectors; ++i) - entries[i].entry = i; - - while ((err = pci_enable_msix(adap->pdev, entries, vectors)) > 0) - vectors = err; - - if (err < 0) - pci_disable_msix(adap->pdev); - - if (!err && vectors < (adap->params.nports + 1)) { - pci_disable_msix(adap->pdev); - err = -1; - } - - if (!err) { - for (i = 0; i < vectors; ++i) - adap->msix_info[i].vec = entries[i].vector; - adap->msix_nvectors = vectors; - } - - return err; -} - -static void __devinit print_port_info(struct adapter *adap, - const struct adapter_info *ai) -{ - static const char *pci_variant[] = { - "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express" - }; - - int i; - char buf[80]; - - if (is_pcie(adap)) - snprintf(buf, sizeof(buf), "%s x%d", - pci_variant[adap->params.pci.variant], - adap->params.pci.width); - else - snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit", - pci_variant[adap->params.pci.variant], - adap->params.pci.speed, adap->params.pci.width); - - for_each_port(adap, i) { - struct net_device *dev = adap->port[i]; - const struct port_info *pi = netdev_priv(dev); - - if (!test_bit(i, &adap->registered_device_map)) - continue; - printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n", - dev->name, ai->desc, pi->phy.desc, - is_offload(adap) ? "R" : "", adap->params.rev, buf, - (adap->flags & USING_MSIX) ? " MSI-X" : - (adap->flags & USING_MSI) ? " MSI" : ""); - if (adap->name == dev->name && adap->params.vpd.mclk) - printk(KERN_INFO - "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n", - adap->name, t3_mc7_size(&adap->cm) >> 20, - t3_mc7_size(&adap->pmtx) >> 20, - t3_mc7_size(&adap->pmrx) >> 20, - adap->params.vpd.sn); - } -} - -static const struct net_device_ops cxgb_netdev_ops = { - .ndo_open = cxgb_open, - .ndo_stop = cxgb_close, - .ndo_start_xmit = t3_eth_xmit, - .ndo_get_stats = cxgb_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_multicast_list = cxgb_set_rxmode, - .ndo_do_ioctl = cxgb_ioctl, - .ndo_change_mtu = cxgb_change_mtu, - .ndo_set_mac_address = cxgb_set_mac_addr, - .ndo_fix_features = cxgb_fix_features, - .ndo_set_features = cxgb_set_features, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = cxgb_netpoll, -#endif -}; - -static void __devinit cxgb3_init_iscsi_mac(struct net_device *dev) -{ - struct port_info *pi = netdev_priv(dev); - - memcpy(pi->iscsic.mac_addr, dev->dev_addr, ETH_ALEN); - pi->iscsic.mac_addr[3] |= 0x80; -} - -static int __devinit init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - static int version_printed; - - int i, err, pci_using_dac = 0; - resource_size_t mmio_start, mmio_len; - const struct adapter_info *ai; - struct adapter *adapter = NULL; - struct port_info *pi; - - if (!version_printed) { - printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); - ++version_printed; - } - - if (!cxgb3_wq) { - cxgb3_wq = create_singlethread_workqueue(DRV_NAME); - if (!cxgb3_wq) { - printk(KERN_ERR DRV_NAME - ": cannot initialize work queue\n"); - return -ENOMEM; - } - } - - err = pci_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "cannot enable PCI device\n"); - goto out; - } - - err = pci_request_regions(pdev, DRV_NAME); - if (err) { - /* Just info, some other driver may have claimed the device. */ - dev_info(&pdev->dev, "cannot obtain PCI resources\n"); - goto out_disable_device; - } - - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { - pci_using_dac = 1; - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); - if (err) { - dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " - "coherent allocations\n"); - goto out_release_regions; - } - } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) { - dev_err(&pdev->dev, "no usable DMA configuration\n"); - goto out_release_regions; - } - - pci_set_master(pdev); - pci_save_state(pdev); - - mmio_start = pci_resource_start(pdev, 0); - mmio_len = pci_resource_len(pdev, 0); - ai = t3_get_adapter_info(ent->driver_data); - - adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); - if (!adapter) { - err = -ENOMEM; - goto out_release_regions; - } - - adapter->nofail_skb = - alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_KERNEL); - if (!adapter->nofail_skb) { - dev_err(&pdev->dev, "cannot allocate nofail buffer\n"); - err = -ENOMEM; - goto out_free_adapter; - } - - adapter->regs = ioremap_nocache(mmio_start, mmio_len); - if (!adapter->regs) { - dev_err(&pdev->dev, "cannot map device registers\n"); - err = -ENOMEM; - goto out_free_adapter; - } - - adapter->pdev = pdev; - adapter->name = pci_name(pdev); - adapter->msg_enable = dflt_msg_enable; - adapter->mmio_len = mmio_len; - - mutex_init(&adapter->mdio_lock); - spin_lock_init(&adapter->work_lock); - spin_lock_init(&adapter->stats_lock); - - INIT_LIST_HEAD(&adapter->adapter_list); - INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task); - INIT_WORK(&adapter->fatal_error_handler_task, fatal_error_task); - - INIT_WORK(&adapter->db_full_task, db_full_task); - INIT_WORK(&adapter->db_empty_task, db_empty_task); - INIT_WORK(&adapter->db_drop_task, db_drop_task); - - INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task); - - for (i = 0; i < ai->nports0 + ai->nports1; ++i) { - struct net_device *netdev; - - netdev = alloc_etherdev_mq(sizeof(struct port_info), SGE_QSETS); - if (!netdev) { - err = -ENOMEM; - goto out_free_dev; - } - - SET_NETDEV_DEV(netdev, &pdev->dev); - - adapter->port[i] = netdev; - pi = netdev_priv(netdev); - pi->adapter = adapter; - pi->port_id = i; - netif_carrier_off(netdev); - netdev->irq = pdev->irq; - netdev->mem_start = mmio_start; - netdev->mem_end = mmio_start + mmio_len - 1; - netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | - NETIF_F_TSO | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_RX; - netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_TX; - if (pci_using_dac) - netdev->features |= NETIF_F_HIGHDMA; - - netdev->netdev_ops = &cxgb_netdev_ops; - SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops); - } - - pci_set_drvdata(pdev, adapter); - if (t3_prep_adapter(adapter, ai, 1) < 0) { - err = -ENODEV; - goto out_free_dev; - } - - /* - * The card is now ready to go. If any errors occur during device - * registration we do not fail the whole card but rather proceed only - * with the ports we manage to register successfully. However we must - * register at least one net device. - */ - for_each_port(adapter, i) { - err = register_netdev(adapter->port[i]); - if (err) - dev_warn(&pdev->dev, - "cannot register net device %s, skipping\n", - adapter->port[i]->name); - else { - /* - * Change the name we use for messages to the name of - * the first successfully registered interface. - */ - if (!adapter->registered_device_map) - adapter->name = adapter->port[i]->name; - - __set_bit(i, &adapter->registered_device_map); - } - } - if (!adapter->registered_device_map) { - dev_err(&pdev->dev, "could not register any net devices\n"); - goto out_free_dev; - } - - for_each_port(adapter, i) - cxgb3_init_iscsi_mac(adapter->port[i]); - - /* Driver's ready. Reflect it on LEDs */ - t3_led_ready(adapter); - - if (is_offload(adapter)) { - __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map); - cxgb3_adapter_ofld(adapter); - } - - /* See what interrupts we'll be using */ - if (msi > 1 && cxgb_enable_msix(adapter) == 0) - adapter->flags |= USING_MSIX; - else if (msi > 0 && pci_enable_msi(pdev) == 0) - adapter->flags |= USING_MSI; - - set_nqsets(adapter); - - err = sysfs_create_group(&adapter->port[0]->dev.kobj, - &cxgb3_attr_group); - - for_each_port(adapter, i) - cxgb_vlan_mode(adapter->port[i], adapter->port[i]->features); - - print_port_info(adapter, ai); - return 0; - -out_free_dev: - iounmap(adapter->regs); - for (i = ai->nports0 + ai->nports1 - 1; i >= 0; --i) - if (adapter->port[i]) - free_netdev(adapter->port[i]); - -out_free_adapter: - kfree(adapter); - -out_release_regions: - pci_release_regions(pdev); -out_disable_device: - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); -out: - return err; -} - -static void __devexit remove_one(struct pci_dev *pdev) -{ - struct adapter *adapter = pci_get_drvdata(pdev); - - if (adapter) { - int i; - - t3_sge_stop(adapter); - sysfs_remove_group(&adapter->port[0]->dev.kobj, - &cxgb3_attr_group); - - if (is_offload(adapter)) { - cxgb3_adapter_unofld(adapter); - if (test_bit(OFFLOAD_DEVMAP_BIT, - &adapter->open_device_map)) - offload_close(&adapter->tdev); - } - - for_each_port(adapter, i) - if (test_bit(i, &adapter->registered_device_map)) - unregister_netdev(adapter->port[i]); - - t3_stop_sge_timers(adapter); - t3_free_sge_resources(adapter); - cxgb_disable_msi(adapter); - - for_each_port(adapter, i) - if (adapter->port[i]) - free_netdev(adapter->port[i]); - - iounmap(adapter->regs); - if (adapter->nofail_skb) - kfree_skb(adapter->nofail_skb); - kfree(adapter); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - } -} - -static struct pci_driver driver = { - .name = DRV_NAME, - .id_table = cxgb3_pci_tbl, - .probe = init_one, - .remove = __devexit_p(remove_one), - .err_handler = &t3_err_handler, -}; - -static int __init cxgb3_init_module(void) -{ - int ret; - - cxgb3_offload_init(); - - ret = pci_register_driver(&driver); - return ret; -} - -static void __exit cxgb3_cleanup_module(void) -{ - pci_unregister_driver(&driver); - if (cxgb3_wq) - destroy_workqueue(cxgb3_wq); -} - -module_init(cxgb3_init_module); -module_exit(cxgb3_cleanup_module); |