diff options
Diffstat (limited to 'drivers/net/chelsio/cxgb2.c')
| -rw-r--r-- | drivers/net/chelsio/cxgb2.c | 238 |
1 files changed, 226 insertions, 12 deletions
diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c index 42ad9cfd670a..a8c873b0af54 100644 --- a/drivers/net/chelsio/cxgb2.c +++ b/drivers/net/chelsio/cxgb2.c @@ -53,7 +53,9 @@ #include "gmac.h" #include "cphy.h" #include "sge.h" +#include "tp.h" #include "espi.h" +#include "elmer0.h" #include <linux/workqueue.h> @@ -73,10 +75,9 @@ static inline void cancel_mac_stats_update(struct adapter *ap) #define MAX_RX_JUMBO_BUFFERS 16384 #define MAX_TX_BUFFERS_HIGH 16384U #define MAX_TX_BUFFERS_LOW 1536U +#define MAX_TX_BUFFERS 1460U #define 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) @@ -94,8 +95,17 @@ MODULE_LICENSE("GPL"); static int dflt_msg_enable = DFLT_MSG_ENABLE; module_param(dflt_msg_enable, int, 0); -MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 message enable bitmap"); +MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap"); + +#define HCLOCK 0x0 +#define LCLOCK 0x1 + +/* T1 cards powersave mode */ +static int t1_clock(struct adapter *adapter, int mode); +static int t1powersave = 1; /* HW default is powersave mode. */ +module_param(t1powersave, int, 0); +MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode"); static const char pci_speed[][4] = { "33", "66", "100", "133" @@ -135,7 +145,7 @@ static void link_report(struct port_info *p) } } -void t1_link_changed(struct adapter *adapter, int port_id, int link_stat, +void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat, int speed, int duplex, int pause) { struct port_info *p = &adapter->port[port_id]; @@ -147,6 +157,22 @@ void t1_link_changed(struct adapter *adapter, int port_id, int link_stat, netif_carrier_off(p->dev); link_report(p); + /* multi-ports: inform toe */ + if ((speed > 0) && (adapter->params.nports > 1)) { + unsigned int sched_speed = 10; + switch (speed) { + case SPEED_1000: + sched_speed = 1000; + break; + case SPEED_100: + sched_speed = 100; + break; + case SPEED_10: + sched_speed = 10; + break; + } + t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed); + } } } @@ -165,8 +191,10 @@ static void link_start(struct port_info *p) static void enable_hw_csum(struct adapter *adapter) { if (adapter->flags & TSO_CAPABLE) - t1_tp_set_ip_checksum_offload(adapter, 1); /* for TSO only */ - t1_tp_set_tcp_checksum_offload(adapter, 1); + t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */ + if (adapter->flags & UDP_CSUM_CAPABLE) + t1_tp_set_udp_checksum_offload(adapter->tp, 1); + t1_tp_set_tcp_checksum_offload(adapter->tp, 1); } /* @@ -468,6 +496,18 @@ static void get_stats(struct net_device *dev, struct ethtool_stats *stats, *data++ = (u64)t->tx_reg_pkts; *data++ = (u64)t->tx_lso_pkts; *data++ = (u64)t->tx_do_cksum; + + if (adapter->espi) { + const struct espi_intr_counts *e; + + e = t1_espi_get_intr_counts(adapter->espi); + *data++ = (u64) e->DIP2_parity_err; + *data++ = (u64) e->DIP4_err; + *data++ = (u64) e->rx_drops; + *data++ = (u64) e->tx_drops; + *data++ = (u64) e->rx_ovflw; + *data++ = (u64) e->parity_err; + } } static inline void reg_block_dump(struct adapter *ap, void *buf, @@ -491,6 +531,15 @@ static void get_regs(struct net_device *dev, struct ethtool_regs *regs, memset(buf, 0, T2_REGMAP_SIZE); reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER); + reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE); + reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR); + reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT); + reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE); + reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE); + reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT); + reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL); + reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE); + reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD); } static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) @@ -729,7 +778,9 @@ static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) static int get_eeprom_len(struct net_device *dev) { - return EEPROM_SIZE; + struct adapter *adapter = dev->priv; + + return t1_is_asic(adapter) ? EEPROM_SIZE : 0; } #define EEPROM_MAGIC(ap) \ @@ -914,7 +965,7 @@ static void ext_intr_task(void *data) { struct adapter *adapter = data; - elmer0_ext_intr_handler(adapter); + t1_elmer0_ext_intr_handler(adapter); /* Now reenable external interrupts */ spin_lock_irq(&adapter->async_lock); @@ -1074,16 +1125,19 @@ static int __devinit init_one(struct pci_dev *pdev, netdev->vlan_rx_register = vlan_rx_register; netdev->vlan_rx_kill_vid = vlan_rx_kill_vid; #endif - adapter->flags |= TSO_CAPABLE; - netdev->features |= NETIF_F_TSO; + + /* T204: disable TSO */ + if (!(is_T2(adapter)) || bi->port_number != 4) { + adapter->flags |= TSO_CAPABLE; + netdev->features |= NETIF_F_TSO; + } } netdev->open = cxgb_open; netdev->stop = cxgb_close; netdev->hard_start_xmit = t1_start_xmit; netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ? - sizeof(struct cpl_tx_pkt_lso) : - sizeof(struct cpl_tx_pkt); + sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt); netdev->get_stats = t1_get_stats; netdev->set_multicast_list = t1_set_rxmode; netdev->do_ioctl = t1_ioctl; @@ -1134,6 +1188,17 @@ static int __devinit init_one(struct pci_dev *pdev, bi->desc, adapter->params.chip_revision, adapter->params.pci.is_pcix ? "PCIX" : "PCI", adapter->params.pci.speed, adapter->params.pci.width); + + /* + * Set the T1B ASIC and memory clocks. + */ + if (t1powersave) + adapter->t1powersave = LCLOCK; /* HW default is powersave mode. */ + else + adapter->t1powersave = HCLOCK; + if (t1_is_T1B(adapter)) + t1_clock(adapter, t1powersave); + return 0; out_release_adapter_res: @@ -1153,6 +1218,155 @@ static int __devinit init_one(struct pci_dev *pdev, return err; } +static void bit_bang(struct adapter *adapter, int bitdata, int nbits) +{ + int data; + int i; + u32 val; + + enum { + S_CLOCK = 1 << 3, + S_DATA = 1 << 4 + }; + + for (i = (nbits - 1); i > -1; i--) { + + udelay(50); + + data = ((bitdata >> i) & 0x1); + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + + if (data) + val |= S_DATA; + else + val &= ~S_DATA; + + udelay(50); + + /* Set SCLOCK low */ + val &= ~S_CLOCK; + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + + udelay(50); + + /* Write SCLOCK high */ + val |= S_CLOCK; + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + + } +} + +static int t1_clock(struct adapter *adapter, int mode) +{ + u32 val; + int M_CORE_VAL; + int M_MEM_VAL; + + enum { + M_CORE_BITS = 9, + T_CORE_VAL = 0, + T_CORE_BITS = 2, + N_CORE_VAL = 0, + N_CORE_BITS = 2, + M_MEM_BITS = 9, + T_MEM_VAL = 0, + T_MEM_BITS = 2, + N_MEM_VAL = 0, + N_MEM_BITS = 2, + NP_LOAD = 1 << 17, + S_LOAD_MEM = 1 << 5, + S_LOAD_CORE = 1 << 6, + S_CLOCK = 1 << 3 + }; + + if (!t1_is_T1B(adapter)) + return -ENODEV; /* Can't re-clock this chip. */ + + if (mode & 2) { + return 0; /* show current mode. */ + } + + if ((adapter->t1powersave & 1) == (mode & 1)) + return -EALREADY; /* ASIC already running in mode. */ + + if ((mode & 1) == HCLOCK) { + M_CORE_VAL = 0x14; + M_MEM_VAL = 0x18; + adapter->t1powersave = HCLOCK; /* overclock */ + } else { + M_CORE_VAL = 0xe; + M_MEM_VAL = 0x10; + adapter->t1powersave = LCLOCK; /* underclock */ + } + + /* Don't interrupt this serial stream! */ + spin_lock(&adapter->tpi_lock); + + /* Initialize for ASIC core */ + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val |= NP_LOAD; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~S_LOAD_CORE; + val &= ~S_CLOCK; + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + + /* Serial program the ASIC clock synthesizer */ + bit_bang(adapter, T_CORE_VAL, T_CORE_BITS); + bit_bang(adapter, N_CORE_VAL, N_CORE_BITS); + bit_bang(adapter, M_CORE_VAL, M_CORE_BITS); + udelay(50); + + /* Finish ASIC core */ + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val |= S_LOAD_CORE; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~S_LOAD_CORE; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + + /* Initialize for memory */ + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val |= NP_LOAD; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~S_LOAD_MEM; + val &= ~S_CLOCK; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + + /* Serial program the memory clock synthesizer */ + bit_bang(adapter, T_MEM_VAL, T_MEM_BITS); + bit_bang(adapter, N_MEM_VAL, N_MEM_BITS); + bit_bang(adapter, M_MEM_VAL, M_MEM_BITS); + udelay(50); + + /* Finish memory */ + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val |= S_LOAD_MEM; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(50); + __t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~S_LOAD_MEM; + udelay(50); + __t1_tpi_write(adapter, A_ELMER0_GPO, val); + + spin_unlock(&adapter->tpi_lock); + + return 0; +} + static inline void t1_sw_reset(struct pci_dev *pdev) { pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3); |