diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/tg3.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/tg3.c | 284 |
1 files changed, 242 insertions, 42 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index e47ff8be1d7b..fce4c1e4dd3f 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -44,6 +44,10 @@ #include <linux/prefetch.h> #include <linux/dma-mapping.h> #include <linux/firmware.h> +#if IS_ENABLED(CONFIG_HWMON) +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#endif #include <net/checksum.h> #include <net/ip.h> @@ -298,6 +302,7 @@ static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)}, {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)}, {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5720)}, + {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57762)}, {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)}, {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)}, {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)}, @@ -730,44 +735,131 @@ static void tg3_ape_unlock(struct tg3 *tp, int locknum) tg3_ape_write32(tp, gnt + 4 * locknum, bit); } -static void tg3_ape_send_event(struct tg3 *tp, u32 event) +static int tg3_ape_event_lock(struct tg3 *tp, u32 timeout_us) { - int i; u32 apedata; - /* NCSI does not support APE events */ - if (tg3_flag(tp, APE_HAS_NCSI)) - return; + while (timeout_us) { + if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM)) + return -EBUSY; + + apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS); + if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) + break; + + tg3_ape_unlock(tp, TG3_APE_LOCK_MEM); + + udelay(10); + timeout_us -= (timeout_us > 10) ? 10 : timeout_us; + } + + return timeout_us ? 0 : -EBUSY; +} + +static int tg3_ape_wait_for_event(struct tg3 *tp, u32 timeout_us) +{ + u32 i, apedata; + + for (i = 0; i < timeout_us / 10; i++) { + apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS); + + if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) + break; + + udelay(10); + } + + return i == timeout_us / 10; +} + +int tg3_ape_scratchpad_read(struct tg3 *tp, u32 *data, u32 base_off, u32 len) +{ + int err; + u32 i, bufoff, msgoff, maxlen, apedata; + + if (!tg3_flag(tp, APE_HAS_NCSI)) + return 0; apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG); if (apedata != APE_SEG_SIG_MAGIC) - return; + return -ENODEV; apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS); if (!(apedata & APE_FW_STATUS_READY)) - return; + return -EAGAIN; - /* Wait for up to 1 millisecond for APE to service previous event. */ - for (i = 0; i < 10; i++) { - if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM)) - return; + bufoff = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_OFF) + + TG3_APE_SHMEM_BASE; + msgoff = bufoff + 2 * sizeof(u32); + maxlen = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_LEN); - apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS); + while (len) { + u32 length; - if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) - tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, - event | APE_EVENT_STATUS_EVENT_PENDING); + /* Cap xfer sizes to scratchpad limits. */ + length = (len > maxlen) ? maxlen : len; + len -= length; + + apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS); + if (!(apedata & APE_FW_STATUS_READY)) + return -EAGAIN; + + /* Wait for up to 1 msec for APE to service previous event. */ + err = tg3_ape_event_lock(tp, 1000); + if (err) + return err; + + apedata = APE_EVENT_STATUS_DRIVER_EVNT | + APE_EVENT_STATUS_SCRTCHPD_READ | + APE_EVENT_STATUS_EVENT_PENDING; + tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, apedata); + + tg3_ape_write32(tp, bufoff, base_off); + tg3_ape_write32(tp, bufoff + sizeof(u32), length); tg3_ape_unlock(tp, TG3_APE_LOCK_MEM); + tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1); - if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) - break; + base_off += length; - udelay(100); + if (tg3_ape_wait_for_event(tp, 30000)) + return -EAGAIN; + + for (i = 0; length; i += 4, length -= 4) { + u32 val = tg3_ape_read32(tp, msgoff + i); + memcpy(data, &val, sizeof(u32)); + data++; + } } - if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) - tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1); + return 0; +} + +static int tg3_ape_send_event(struct tg3 *tp, u32 event) +{ + int err; + u32 apedata; + + apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG); + if (apedata != APE_SEG_SIG_MAGIC) + return -EAGAIN; + + apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS); + if (!(apedata & APE_FW_STATUS_READY)) + return -EAGAIN; + + /* Wait for up to 1 millisecond for APE to service previous event. */ + err = tg3_ape_event_lock(tp, 1000); + if (err) + return err; + + tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, + event | APE_EVENT_STATUS_EVENT_PENDING); + + tg3_ape_unlock(tp, TG3_APE_LOCK_MEM); + tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1); + + return 0; } static void tg3_ape_driver_state_change(struct tg3 *tp, int kind) @@ -9393,6 +9485,110 @@ static int tg3_init_hw(struct tg3 *tp, int reset_phy) return tg3_reset_hw(tp, reset_phy); } +#if IS_ENABLED(CONFIG_HWMON) +static void tg3_sd_scan_scratchpad(struct tg3 *tp, struct tg3_ocir *ocir) +{ + int i; + + for (i = 0; i < TG3_SD_NUM_RECS; i++, ocir++) { + u32 off = i * TG3_OCIR_LEN, len = TG3_OCIR_LEN; + + tg3_ape_scratchpad_read(tp, (u32 *) ocir, off, len); + off += len; + + if (ocir->signature != TG3_OCIR_SIG_MAGIC || + !(ocir->version_flags & TG3_OCIR_FLAG_ACTIVE)) + memset(ocir, 0, TG3_OCIR_LEN); + } +} + +/* sysfs attributes for hwmon */ +static ssize_t tg3_show_temp(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct net_device *netdev = pci_get_drvdata(pdev); + struct tg3 *tp = netdev_priv(netdev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + u32 temperature; + + spin_lock_bh(&tp->lock); + tg3_ape_scratchpad_read(tp, &temperature, attr->index, + sizeof(temperature)); + spin_unlock_bh(&tp->lock); + return sprintf(buf, "%u\n", temperature); +} + + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tg3_show_temp, NULL, + TG3_TEMP_SENSOR_OFFSET); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, tg3_show_temp, NULL, + TG3_TEMP_CAUTION_OFFSET); +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, tg3_show_temp, NULL, + TG3_TEMP_MAX_OFFSET); + +static struct attribute *tg3_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + NULL +}; + +static const struct attribute_group tg3_group = { + .attrs = tg3_attributes, +}; + +#endif + +static void tg3_hwmon_close(struct tg3 *tp) +{ +#if IS_ENABLED(CONFIG_HWMON) + if (tp->hwmon_dev) { + hwmon_device_unregister(tp->hwmon_dev); + tp->hwmon_dev = NULL; + sysfs_remove_group(&tp->pdev->dev.kobj, &tg3_group); + } +#endif +} + +static void tg3_hwmon_open(struct tg3 *tp) +{ +#if IS_ENABLED(CONFIG_HWMON) + int i, err; + u32 size = 0; + struct pci_dev *pdev = tp->pdev; + struct tg3_ocir ocirs[TG3_SD_NUM_RECS]; + + tg3_sd_scan_scratchpad(tp, ocirs); + + for (i = 0; i < TG3_SD_NUM_RECS; i++) { + if (!ocirs[i].src_data_length) + continue; + + size += ocirs[i].src_hdr_length; + size += ocirs[i].src_data_length; + } + + if (!size) + return; + + /* Register hwmon sysfs hooks */ + err = sysfs_create_group(&pdev->dev.kobj, &tg3_group); + if (err) { + dev_err(&pdev->dev, "Cannot create sysfs group, aborting\n"); + return; + } + + tp->hwmon_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(tp->hwmon_dev)) { + tp->hwmon_dev = NULL; + dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n"); + sysfs_remove_group(&pdev->dev.kobj, &tg3_group); + } +#endif +} + + #define TG3_STAT_ADD32(PSTAT, REG) \ do { u32 __val = tr32(REG); \ (PSTAT)->low += __val; \ @@ -9908,7 +10104,7 @@ static bool tg3_enable_msix(struct tg3 *tp) int i, rc; struct msix_entry msix_ent[tp->irq_max]; - tp->irq_cnt = num_online_cpus(); + tp->irq_cnt = netif_get_num_default_rss_queues(); if (tp->irq_cnt > 1) { /* We want as many rx rings enabled as there are cpus. * In multiqueue MSI-X mode, the first MSI-X vector @@ -10101,6 +10297,8 @@ static int tg3_open(struct net_device *dev) tg3_phy_start(tp); + tg3_hwmon_open(tp); + tg3_full_lock(tp, 0); tg3_timer_start(tp); @@ -10150,6 +10348,8 @@ static int tg3_close(struct net_device *dev) tg3_timer_stop(tp); + tg3_hwmon_close(tp); + tg3_phy_stop(tp); tg3_full_lock(tp, 1); @@ -13857,14 +14057,9 @@ static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp) } } -static void __devinit tg3_read_dash_ver(struct tg3 *tp) +static void __devinit tg3_probe_ncsi(struct tg3 *tp) { - int vlen; u32 apedata; - char *fwtype; - - if (!tg3_flag(tp, ENABLE_APE) || !tg3_flag(tp, ENABLE_ASF)) - return; apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG); if (apedata != APE_SEG_SIG_MAGIC) @@ -13874,14 +14069,22 @@ static void __devinit tg3_read_dash_ver(struct tg3 *tp) if (!(apedata & APE_FW_STATUS_READY)) return; + if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI) + tg3_flag_set(tp, APE_HAS_NCSI); +} + +static void __devinit tg3_read_dash_ver(struct tg3 *tp) +{ + int vlen; + u32 apedata; + char *fwtype; + apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION); - if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI) { - tg3_flag_set(tp, APE_HAS_NCSI); + if (tg3_flag(tp, APE_HAS_NCSI)) fwtype = "NCSI"; - } else { + else fwtype = "DASH"; - } vlen = strlen(tp->fw_ver); @@ -13915,20 +14118,17 @@ static void __devinit tg3_read_fw_ver(struct tg3 *tp) tg3_read_sb_ver(tp, val); else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW) tg3_read_hwsb_ver(tp); - else - return; - - if (vpd_vers) - goto done; - if (tg3_flag(tp, ENABLE_APE)) { - if (tg3_flag(tp, ENABLE_ASF)) - tg3_read_dash_ver(tp); - } else if (tg3_flag(tp, ENABLE_ASF)) { - tg3_read_mgmtfw_ver(tp); + if (tg3_flag(tp, ENABLE_ASF)) { + if (tg3_flag(tp, ENABLE_APE)) { + tg3_probe_ncsi(tp); + if (!vpd_vers) + tg3_read_dash_ver(tp); + } else if (!vpd_vers) { + tg3_read_mgmtfw_ver(tp); + } } -done: tp->fw_ver[TG3_VER_SIZE - 1] = 0; } |