diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-07 06:57:17 -0700 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-10 19:54:52 -0700 |
commit | f7917c009c28c941ba151ee66f04dc7f6a2e1e0b (patch) | |
tree | 91cd66b3b846b1113654de2ac31f085d0d7989ba /drivers/net/cxgb3/cxgb3_main.c | |
parent | adfc5217e9db68d3f0cec8dd847c1a6d3ab549ee (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.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 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. |