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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-04-07 06:57:17 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 19:54:52 -0700
commitf7917c009c28c941ba151ee66f04dc7f6a2e1e0b (patch)
tree91cd66b3b846b1113654de2ac31f085d0d7989ba /drivers/net/cxgb3/cxgb3_main.c
parentadfc5217e9db68d3f0cec8dd847c1a6d3ab549ee (diff)
chelsio: Move the Chelsio drivers
Moves the drivers for the Chelsio chipsets into drivers/net/ethernet/chelsio/ and the necessary Kconfig and Makefile changes. CC: Divy Le Ray <divy@chelsio.com> CC: Dimitris Michailidis <dm@chelsio.com> CC: Casey Leedom <leedom@chelsio.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/cxgb3/cxgb3_main.c')
-rw-r--r--drivers/net/cxgb3/cxgb3_main.c3448
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 93b41a7ac175..000000000000
--- 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);