diff options
Diffstat (limited to 'drivers/infiniband/hw/qib')
| -rw-r--r-- | drivers/infiniband/hw/qib/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib.h | 26 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_7220.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_diag.c | 6 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_driver.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_file_ops.c | 9 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_iba6120.c | 62 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_iba7220.c | 75 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_iba7322.c | 179 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_mad.c | 14 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_pcie.c | 128 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_rc.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_sd7220.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_sdma.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_tx.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_verbs.c | 3 |
16 files changed, 139 insertions, 383 deletions
diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig index e0fdb9201423..cb06314a2ae2 100644 --- a/drivers/infiniband/hw/qib/Kconfig +++ b/drivers/infiniband/hw/qib/Kconfig @@ -1,6 +1,7 @@ config INFINIBAND_QIB tristate "Intel PCIe HCA support" depends on 64BIT && INFINIBAND_RDMAVT + depends on PCI ---help--- This is a low-level driver for Intel PCIe QLE InfiniBand host channel adapters. This driver does not support the Intel diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index f9e1c69603a5..689f5d001892 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -102,18 +102,6 @@ extern const struct pci_error_handlers qib_pci_err_handler; #define QIB_TRAFFIC_ACTIVE_THRESHOLD (2000) /* - * Struct used to indicate which errors are logged in each of the - * error-counters that are logged to EEPROM. A counter is incremented - * _once_ (saturating at 255) for each event with any bits set in - * the error or hwerror register masks below. - */ -#define QIB_EEP_LOG_CNT (4) -struct qib_eep_log_mask { - u64 errs_to_log; - u64 hwerrs_to_log; -}; - -/* * Below contains all data related to a single context (formerly called port). */ @@ -443,14 +431,12 @@ struct qib_irq_notify; #endif struct qib_msix_entry { - int irq; void *arg; #ifdef CONFIG_INFINIBAND_QIB_DCA int dca; int rcv; struct qib_irq_notify *notifier; #endif - char name[MAX_NAME_SIZE]; cpumask_var_t mask; }; @@ -1081,11 +1067,6 @@ struct qib_devdata { /* control high-level access to EEPROM */ struct mutex eep_lock; uint64_t traffic_wds; - /* - * masks for which bits of errs, hwerrs that cause - * each of the counters to increment. - */ - struct qib_eep_log_mask eep_st_masks[QIB_EEP_LOG_CNT]; struct qib_diag_client *diag_client; spinlock_t qib_diag_trans_lock; /* protect diag observer ops */ struct diag_observer_list_elt *diag_observer_list; @@ -1299,7 +1280,6 @@ int qib_twsi_blk_rd(struct qib_devdata *dd, int dev, int addr, void *buffer, int qib_twsi_blk_wr(struct qib_devdata *dd, int dev, int addr, const void *buffer, int len); void qib_get_eeprom_info(struct qib_devdata *); -#define qib_inc_eeprom_err(dd, eidx, incr) void qib_dump_lookup_output_queue(struct qib_devdata *); void qib_force_pio_avail_update(struct qib_devdata *); void qib_clear_symerror_on_linkup(unsigned long opaque); @@ -1434,10 +1414,8 @@ int qib_pcie_ddinit(struct qib_devdata *, struct pci_dev *, const struct pci_device_id *); void qib_pcie_ddcleanup(struct qib_devdata *); int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent); -int qib_reinit_intr(struct qib_devdata *); -void qib_enable_intx(struct qib_devdata *dd); -void qib_nomsi(struct qib_devdata *); -void qib_nomsix(struct qib_devdata *); +void qib_free_irq(struct qib_devdata *dd); +int qib_reinit_intr(struct qib_devdata *dd); void qib_pcie_getcmd(struct qib_devdata *, u16 *, u8 *, u8 *); void qib_pcie_reenable(struct qib_devdata *, u16, u8, u8); /* interrupts for device */ diff --git a/drivers/infiniband/hw/qib/qib_7220.h b/drivers/infiniband/hw/qib/qib_7220.h index a5356cb4252e..4ec3dc1fbfb4 100644 --- a/drivers/infiniband/hw/qib/qib_7220.h +++ b/drivers/infiniband/hw/qib/qib_7220.h @@ -67,7 +67,6 @@ struct qib_chip_specific { u32 lastbuf_for_pio; u32 updthresh; /* current AvailUpdThld */ u32 updthresh_dflt; /* default AvailUpdThld */ - int irq; u8 presets_needed; u8 relock_timer_active; char emsgbuf[128]; diff --git a/drivers/infiniband/hw/qib/qib_diag.c b/drivers/infiniband/hw/qib/qib_diag.c index 775018b32b0d..a9377eee8734 100644 --- a/drivers/infiniband/hw/qib/qib_diag.c +++ b/drivers/infiniband/hw/qib/qib_diag.c @@ -761,7 +761,6 @@ static ssize_t qib_diag_read(struct file *fp, char __user *data, { struct qib_diag_client *dc = fp->private_data; struct qib_devdata *dd = dc->dd; - void __iomem *kreg_base; ssize_t ret; if (dc->pid != current->pid) { @@ -769,8 +768,6 @@ static ssize_t qib_diag_read(struct file *fp, char __user *data, goto bail; } - kreg_base = dd->kregbase; - if (count == 0) ret = 0; else if ((count % 4) || (*off % 4)) @@ -838,7 +835,6 @@ static ssize_t qib_diag_write(struct file *fp, const char __user *data, { struct qib_diag_client *dc = fp->private_data; struct qib_devdata *dd = dc->dd; - void __iomem *kreg_base; ssize_t ret; if (dc->pid != current->pid) { @@ -846,8 +842,6 @@ static ssize_t qib_diag_write(struct file *fp, const char __user *data, goto bail; } - kreg_base = dd->kregbase; - if (count == 0) ret = 0; else if ((count % 4) || (*off % 4)) diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c index 719906a9fd51..2314e8a9ca3f 100644 --- a/drivers/infiniband/hw/qib/qib_driver.c +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -735,11 +735,9 @@ void qib_set_led_override(struct qib_pportdata *ppd, unsigned int val) */ if (atomic_inc_return(&ppd->led_override_timer_active) == 1) { /* Need to start timer */ - init_timer(&ppd->led_override_timer); - ppd->led_override_timer.function = qib_run_led_override; - ppd->led_override_timer.data = (unsigned long) ppd; - ppd->led_override_timer.expires = jiffies + 1; - add_timer(&ppd->led_override_timer); + setup_timer(&ppd->led_override_timer, qib_run_led_override, + (unsigned long)ppd); + mod_timer(&ppd->led_override_timer, jiffies + 1); } else { if (ppd->led_override_vals[0] || ppd->led_override_vals[1]) mod_timer(&ppd->led_override_timer, jiffies + 1); diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 9396c1807cc3..2d6a191afec0 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -696,15 +696,8 @@ static void qib_clean_part_key(struct qib_ctxtdata *rcd, struct qib_devdata *dd) { int i, j, pchanged = 0; - u64 oldpkey; struct qib_pportdata *ppd = rcd->ppd; - /* for debugging only */ - oldpkey = (u64) ppd->pkeys[0] | - ((u64) ppd->pkeys[1] << 16) | - ((u64) ppd->pkeys[2] << 32) | - ((u64) ppd->pkeys[3] << 48); - for (i = 0; i < ARRAY_SIZE(rcd->pkeys); i++) { if (!rcd->pkeys[i]) continue; @@ -1817,7 +1810,6 @@ static int qib_close(struct inode *in, struct file *fp) struct qib_devdata *dd; unsigned long flags; unsigned ctxt; - pid_t pid; mutex_lock(&qib_mutex); @@ -1859,7 +1851,6 @@ static int qib_close(struct inode *in, struct file *fp) spin_lock_irqsave(&dd->uctxt_lock, flags); ctxt = rcd->ctxt; dd->rcd[ctxt] = NULL; - pid = rcd->pid; rcd->pid = 0; spin_unlock_irqrestore(&dd->uctxt_lock, flags); diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c index 3259a60e4f4f..3a0a28e10b86 100644 --- a/drivers/infiniband/hw/qib/qib_iba6120.c +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -245,7 +245,6 @@ struct qib_chip_specific { u64 iblnkerrsnap; u64 ibcctrl; /* shadow for kr_ibcctrl */ u32 lastlinkrecov; /* link recovery issue */ - int irq; u32 cntrnamelen; u32 portcntrnamelen; u32 ncntrs; @@ -749,7 +748,6 @@ static void qib_handle_6120_hwerrors(struct qib_devdata *dd, char *msg, u32 bits, ctrl; int isfatal = 0; char *bitsmsg; - int log_idx; hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); if (!hwerrs) @@ -771,11 +769,6 @@ static void qib_handle_6120_hwerrors(struct qib_devdata *dd, char *msg, hwerrs &= dd->cspec->hwerrmask; - /* We log some errors to EEPROM, check if we have any of those. */ - for (log_idx = 0; log_idx < QIB_EEP_LOG_CNT; ++log_idx) - if (hwerrs & dd->eep_st_masks[log_idx].hwerrs_to_log) - qib_inc_eeprom_err(dd, log_idx, 1); - /* * Make sure we get this much out, unless told to be quiet, * or it's occurred within the last 5 seconds. @@ -1005,7 +998,6 @@ static void handle_6120_errors(struct qib_devdata *dd, u64 errs) char *msg; u64 ignore_this_time = 0; u64 iserr = 0; - int log_idx; struct qib_pportdata *ppd = dd->pport; u64 mask; @@ -1016,10 +1008,6 @@ static void handle_6120_errors(struct qib_devdata *dd, u64 errs) /* do these first, they are most important */ if (errs & ERR_MASK(HardwareErr)) qib_handle_6120_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); - else - for (log_idx = 0; log_idx < QIB_EEP_LOG_CNT; ++log_idx) - if (errs & dd->eep_st_masks[log_idx].errs_to_log) - qib_inc_eeprom_err(dd, log_idx, 1); if (errs & ~IB_E_BITSEXTANT) qib_dev_err(dd, @@ -1485,15 +1473,6 @@ static void qib_6120_setup_setextled(struct qib_pportdata *ppd, u32 on) spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); } -static void qib_6120_free_irq(struct qib_devdata *dd) -{ - if (dd->cspec->irq) { - free_irq(dd->cspec->irq, dd); - dd->cspec->irq = 0; - } - qib_nomsi(dd); -} - /** * qib_6120_setup_cleanup - clean up any per-chip chip-specific stuff * @dd: the qlogic_ib device @@ -1502,7 +1481,7 @@ static void qib_6120_free_irq(struct qib_devdata *dd) */ static void qib_6120_setup_cleanup(struct qib_devdata *dd) { - qib_6120_free_irq(dd); + qib_free_irq(dd); kfree(dd->cspec->cntrs); kfree(dd->cspec->portcntrs); if (dd->cspec->dummy_hdrq) { @@ -1706,6 +1685,8 @@ bail: */ static void qib_setup_6120_interrupt(struct qib_devdata *dd) { + int ret; + /* * If the chip supports added error indication via GPIO pins, * enable interrupts on those bits so the interrupt routine @@ -1719,19 +1700,12 @@ static void qib_setup_6120_interrupt(struct qib_devdata *dd) qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); } - if (!dd->cspec->irq) + ret = pci_request_irq(dd->pcidev, 0, qib_6120intr, NULL, dd, + QIB_DRV_NAME); + if (ret) qib_dev_err(dd, - "irq is 0, BIOS error? Interrupts won't work\n"); - else { - int ret; - - ret = request_irq(dd->cspec->irq, qib_6120intr, 0, - QIB_DRV_NAME, dd); - if (ret) - qib_dev_err(dd, - "Couldn't setup interrupt (irq=%d): %d\n", - dd->cspec->irq, ret); - } + "Couldn't setup interrupt (irq=%d): %d\n", + pci_irq_vector(dd->pcidev, 0), ret); } /** @@ -1929,7 +1903,6 @@ static void qib_6120_put_tid_2(struct qib_devdata *dd, u64 __iomem *tidptr, u32 type, unsigned long pa) { u32 __iomem *tidp32 = (u32 __iomem *)tidptr; - u32 tidx; if (!dd->kregbase) return; @@ -1953,7 +1926,6 @@ static void qib_6120_put_tid_2(struct qib_devdata *dd, u64 __iomem *tidptr, else /* for now, always full 4KB page */ pa |= 2 << 29; } - tidx = tidptr - dd->egrtidbase; writel(pa, tidp32); mmiowb(); } @@ -3242,20 +3214,6 @@ static int init_6120_variables(struct qib_devdata *dd) if (qib_unordered_wc()) dd->flags |= QIB_PIO_FLUSH_WC; - /* - * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity. - * 2 is Some Misc, 3 is reserved for future. - */ - dd->eep_st_masks[0].hwerrs_to_log = HWE_MASK(TXEMemParityErr); - - /* Ignore errors in PIO/PBC on systems with unordered write-combining */ - if (qib_unordered_wc()) - dd->eep_st_masks[0].hwerrs_to_log &= ~TXE_PIO_PARITY; - - dd->eep_st_masks[1].hwerrs_to_log = HWE_MASK(RXEMemParityErr); - - dd->eep_st_masks[2].errs_to_log = ERR_MASK(ResetNegated); - ret = qib_init_pportdata(ppd, dd, 0, 1); if (ret) goto bail; @@ -3490,7 +3448,7 @@ struct qib_devdata *qib_init_iba6120_funcs(struct pci_dev *pdev, dd->f_bringup_serdes = qib_6120_bringup_serdes; dd->f_cleanup = qib_6120_setup_cleanup; dd->f_clear_tids = qib_6120_clear_tids; - dd->f_free_irq = qib_6120_free_irq; + dd->f_free_irq = qib_free_irq; dd->f_get_base_info = qib_6120_get_base_info; dd->f_get_msgheader = qib_6120_get_msgheader; dd->f_getsendbuf = qib_6120_getsendbuf; @@ -3559,8 +3517,6 @@ struct qib_devdata *qib_init_iba6120_funcs(struct pci_dev *pdev, if (qib_pcie_params(dd, 8, NULL)) qib_dev_err(dd, "Failed to setup PCIe or interrupts; continuing anyway\n"); - dd->cspec->irq = pdev->irq; /* save IRQ */ - /* clear diagctrl register, in case diags were running and crashed */ qib_write_kreg(dd, kr_hwdiagctrl, 0); diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c index 04bdd3d487b1..d66d68e2cf24 100644 --- a/drivers/infiniband/hw/qib/qib_iba7220.c +++ b/drivers/infiniband/hw/qib/qib_iba7220.c @@ -1094,7 +1094,6 @@ static void handle_7220_errors(struct qib_devdata *dd, u64 errs) char *msg; u64 ignore_this_time = 0; u64 iserr = 0; - int log_idx; struct qib_pportdata *ppd = dd->pport; u64 mask; @@ -1105,10 +1104,6 @@ static void handle_7220_errors(struct qib_devdata *dd, u64 errs) /* do these first, they are most important */ if (errs & ERR_MASK(HardwareErr)) qib_7220_handle_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); - else - for (log_idx = 0; log_idx < QIB_EEP_LOG_CNT; ++log_idx) - if (errs & dd->eep_st_masks[log_idx].errs_to_log) - qib_inc_eeprom_err(dd, log_idx, 1); if (errs & QLOGIC_IB_E_SDMAERRS) sdma_7220_errors(ppd, errs); @@ -1302,7 +1297,6 @@ static void qib_7220_handle_hwerrors(struct qib_devdata *dd, char *msg, u32 bits, ctrl; int isfatal = 0; char *bitsmsg; - int log_idx; hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); if (!hwerrs) @@ -1326,10 +1320,6 @@ static void qib_7220_handle_hwerrors(struct qib_devdata *dd, char *msg, hwerrs &= dd->cspec->hwerrmask; - /* We log some errors to EEPROM, check if we have any of those. */ - for (log_idx = 0; log_idx < QIB_EEP_LOG_CNT; ++log_idx) - if (hwerrs & dd->eep_st_masks[log_idx].hwerrs_to_log) - qib_inc_eeprom_err(dd, log_idx, 1); if (hwerrs & ~(TXEMEMPARITYERR_PIOBUF | TXEMEMPARITYERR_PIOPBC | RXE_PARITY)) qib_devinfo(dd->pcidev, @@ -1780,15 +1770,6 @@ static void qib_setup_7220_setextled(struct qib_pportdata *ppd, u32 on) qib_write_kreg(dd, kr_rcvpktledcnt, ledblink); } -static void qib_7220_free_irq(struct qib_devdata *dd) -{ - if (dd->cspec->irq) { - free_irq(dd->cspec->irq, dd); - dd->cspec->irq = 0; - } - qib_nomsi(dd); -} - /* * qib_setup_7220_cleanup - clean up any per-chip chip-specific stuff * @dd: the qlogic_ib device @@ -1798,7 +1779,7 @@ static void qib_7220_free_irq(struct qib_devdata *dd) */ static void qib_setup_7220_cleanup(struct qib_devdata *dd) { - qib_7220_free_irq(dd); + qib_free_irq(dd); kfree(dd->cspec->cntrs); kfree(dd->cspec->portcntrs); } @@ -2026,20 +2007,14 @@ bail: */ static void qib_setup_7220_interrupt(struct qib_devdata *dd) { - if (!dd->cspec->irq) - qib_dev_err(dd, - "irq is 0, BIOS error? Interrupts won't work\n"); - else { - int ret = request_irq(dd->cspec->irq, qib_7220intr, - dd->msi_lo ? 0 : IRQF_SHARED, - QIB_DRV_NAME, dd); + int ret; - if (ret) - qib_dev_err(dd, - "Couldn't setup %s interrupt (irq=%d): %d\n", - dd->msi_lo ? "MSI" : "INTx", - dd->cspec->irq, ret); - } + ret = pci_request_irq(dd->pcidev, 0, qib_7220intr, NULL, dd, + QIB_DRV_NAME); + if (ret) + qib_dev_err(dd, "Couldn't setup %s interrupt (irq=%d): %d\n", + dd->pcidev->msi_enabled ? "MSI" : "INTx", + pci_irq_vector(dd->pcidev, 0), ret); } /** @@ -3302,16 +3277,12 @@ static int qib_7220_intr_fallback(struct qib_devdata *dd) return 0; qib_devinfo(dd->pcidev, - "MSI interrupt not detected, trying INTx interrupts\n"); - qib_7220_free_irq(dd); - qib_enable_intx(dd); - /* - * Some newer kernels require free_irq before disable_msi, - * and irq can be changed during disable and INTx enable - * and we need to therefore use the pcidev->irq value, - * not our saved MSI value. - */ - dd->cspec->irq = dd->pcidev->irq; + "MSI interrupt not detected, trying INTx interrupts\n"); + + qib_free_irq(dd); + dd->msi_lo = 0; + if (pci_alloc_irq_vectors(dd->pcidev, 1, 1, PCI_IRQ_LEGACY) < 0) + qib_dev_err(dd, "Failed to enable INTx\n"); qib_setup_7220_interrupt(dd); return 1; } @@ -3543,7 +3514,6 @@ static void autoneg_7220_work(struct work_struct *work) { struct qib_pportdata *ppd; struct qib_devdata *dd; - u64 startms; u32 i; unsigned long flags; @@ -3551,8 +3521,6 @@ static void autoneg_7220_work(struct work_struct *work) autoneg_work.work)->pportdata; dd = ppd->dd; - startms = jiffies_to_msecs(jiffies); - /* * Busy wait for this first part, it should be at most a * few hundred usec, since we scheduled ourselves for 2msec. @@ -4035,16 +4003,6 @@ static int qib_init_7220_variables(struct qib_devdata *dd) dd->flags |= qib_special_trigger ? QIB_USE_SPCL_TRIG : QIB_HAS_SEND_DMA; - /* - * EEPROM error log 0 is TXE Parity errors. 1 is RXE Parity. - * 2 is Some Misc, 3 is reserved for future. - */ - dd->eep_st_masks[0].hwerrs_to_log = HWE_MASK(TXEMemParityErr); - - dd->eep_st_masks[1].hwerrs_to_log = HWE_MASK(RXEMemParityErr); - - dd->eep_st_masks[2].errs_to_log = ERR_MASK(ResetNegated); - init_waitqueue_head(&cpspec->autoneg_wait); INIT_DELAYED_WORK(&cpspec->autoneg_work, autoneg_7220_work); @@ -4535,7 +4493,7 @@ struct qib_devdata *qib_init_iba7220_funcs(struct pci_dev *pdev, dd->f_bringup_serdes = qib_7220_bringup_serdes; dd->f_cleanup = qib_setup_7220_cleanup; dd->f_clear_tids = qib_7220_clear_tids; - dd->f_free_irq = qib_7220_free_irq; + dd->f_free_irq = qib_free_irq; dd->f_get_base_info = qib_7220_get_base_info; dd->f_get_msgheader = qib_7220_get_msgheader; dd->f_getsendbuf = qib_7220_getsendbuf; @@ -4618,9 +4576,6 @@ struct qib_devdata *qib_init_iba7220_funcs(struct pci_dev *pdev, qib_dev_err(dd, "Failed to setup PCIe or interrupts; continuing anyway\n"); - /* save IRQ for possible later use */ - dd->cspec->irq = pdev->irq; - if (qib_read_kreg64(dd, kr_hwerrstatus) & QLOGIC_IB_HWE_SERDESPLLFAILED) qib_write_kreg(dd, kr_hwerrclear, diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 14cadf6d6214..b0413f9ecbe3 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -553,7 +553,6 @@ struct qib_chip_specific { u32 updthresh; /* current AvailUpdThld */ u32 updthresh_dflt; /* default AvailUpdThld */ u32 r1; - int irq; u32 num_msix_entries; u32 sdmabufcnt; u32 lastbuf_for_pio; @@ -756,10 +755,8 @@ static void check_7322_rxe_status(struct qib_pportdata *); static u32 __iomem *qib_7322_getsendbuf(struct qib_pportdata *, u64, u32 *); #ifdef CONFIG_INFINIBAND_QIB_DCA static void qib_setup_dca(struct qib_devdata *dd); -static void setup_dca_notifier(struct qib_devdata *dd, - struct qib_msix_entry *m); -static void reset_dca_notifier(struct qib_devdata *dd, - struct qib_msix_entry *m); +static void setup_dca_notifier(struct qib_devdata *dd, int msixnum); +static void reset_dca_notifier(struct qib_devdata *dd, int msixnum); #endif /** @@ -1647,7 +1644,6 @@ static noinline void handle_7322_errors(struct qib_devdata *dd) u64 iserr = 0; u64 errs; u64 mask; - int log_idx; qib_stats.sps_errints++; errs = qib_read_kreg64(dd, kr_errstatus); @@ -1665,10 +1661,7 @@ static noinline void handle_7322_errors(struct qib_devdata *dd) if (errs & QIB_E_HARDWARE) { *msg = '\0'; qib_7322_handle_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); - } else - for (log_idx = 0; log_idx < QIB_EEP_LOG_CNT; ++log_idx) - if (errs & dd->eep_st_masks[log_idx].errs_to_log) - qib_inc_eeprom_err(dd, log_idx, 1); + } if (errs & QIB_E_SPKTERRS) { qib_disarm_7322_senderrbufs(dd->pport); @@ -2778,7 +2771,7 @@ static void qib_setup_dca(struct qib_devdata *dd) qib_write_kreg(dd, KREG_IDX(DCACtrlB) + i, cspec->dca_rcvhdr_ctrl[i]); for (i = 0; i < cspec->num_msix_entries; i++) - setup_dca_notifier(dd, &cspec->msix_entries[i]); + setup_dca_notifier(dd, i); } static void qib_irq_notifier_notify(struct irq_affinity_notify *notify, @@ -2820,49 +2813,41 @@ static void qib_irq_notifier_release(struct kref *ref) } #endif -/* - * Disable MSIx interrupt if enabled, call generic MSIx code - * to cleanup, and clear pending MSIx interrupts. - * Used for fallback to INTx, after reset, and when MSIx setup fails. - */ -static void qib_7322_nomsix(struct qib_devdata *dd) +static void qib_7322_free_irq(struct qib_devdata *dd) { u64 intgranted; - int n; + int i; dd->cspec->main_int_mask = ~0ULL; - n = dd->cspec->num_msix_entries; - if (n) { - int i; - dd->cspec->num_msix_entries = 0; - for (i = 0; i < n; i++) { + for (i = 0; i < dd->cspec->num_msix_entries; i++) { + /* only free IRQs that were allocated */ + if (dd->cspec->msix_entries[i].arg) { #ifdef CONFIG_INFINIBAND_QIB_DCA - reset_dca_notifier(dd, &dd->cspec->msix_entries[i]); + reset_dca_notifier(dd, i); #endif - irq_set_affinity_hint( - dd->cspec->msix_entries[i].irq, NULL); + irq_set_affinity_hint(pci_irq_vector(dd->pcidev, i), + NULL); free_cpumask_var(dd->cspec->msix_entries[i].mask); - free_irq(dd->cspec->msix_entries[i].irq, - dd->cspec->msix_entries[i].arg); + pci_free_irq(dd->pcidev, i, + dd->cspec->msix_entries[i].arg); } - qib_nomsix(dd); } + + /* If num_msix_entries was 0, disable the INTx IRQ */ + if (!dd->cspec->num_msix_entries) + pci_free_irq(dd->pcidev, 0, dd); + else + dd->cspec->num_msix_entries = 0; + + pci_free_irq_vectors(dd->pcidev); + /* make sure no MSIx interrupts are left pending */ intgranted = qib_read_kreg64(dd, kr_intgranted); if (intgranted) qib_write_kreg(dd, kr_intgranted, intgranted); } -static void qib_7322_free_irq(struct qib_devdata *dd) -{ - if (dd->cspec->irq) { - free_irq(dd->cspec->irq, dd); - dd->cspec->irq = 0; - } - qib_7322_nomsix(dd); -} - static void qib_setup_7322_cleanup(struct qib_devdata *dd) { int i; @@ -3329,22 +3314,20 @@ static irqreturn_t sdma_cleanup_intr(int irq, void *data) #ifdef CONFIG_INFINIBAND_QIB_DCA -static void reset_dca_notifier(struct qib_devdata *dd, struct qib_msix_entry *m) +static void reset_dca_notifier(struct qib_devdata *dd, int msixnum) { - if (!m->dca) + if (!dd->cspec->msix_entries[msixnum].dca) return; - qib_devinfo(dd->pcidev, - "Disabling notifier on HCA %d irq %d\n", - dd->unit, - m->irq); - irq_set_affinity_notifier( - m->irq, - NULL); - m->notifier = NULL; + + qib_devinfo(dd->pcidev, "Disabling notifier on HCA %d irq %d\n", + dd->unit, pci_irq_vector(dd->pcidev, msixnum)); + irq_set_affinity_notifier(pci_irq_vector(dd->pcidev, msixnum), NULL); + dd->cspec->msix_entries[msixnum].notifier = NULL; } -static void setup_dca_notifier(struct qib_devdata *dd, struct qib_msix_entry *m) +static void setup_dca_notifier(struct qib_devdata *dd, int msixnum) { + struct qib_msix_entry *m = &dd->cspec->msix_entries[msixnum]; struct qib_irq_notify *n; if (!m->dca) @@ -3354,7 +3337,7 @@ static void setup_dca_notifier(struct qib_devdata *dd, struct qib_msix_entry *m) int ret; m->notifier = n; - n->notify.irq = m->irq; + n->notify.irq = pci_irq_vector(dd->pcidev, msixnum); n->notify.notify = qib_irq_notifier_notify; n->notify.release = qib_irq_notifier_release; n->arg = m->arg; @@ -3415,22 +3398,17 @@ static void qib_setup_7322_interrupt(struct qib_devdata *dd, int clearpend) if (!dd->cspec->num_msix_entries) { /* Try to get INTx interrupt */ try_intx: - if (!dd->pcidev->irq) { - qib_dev_err(dd, - "irq is 0, BIOS error? Interrupts won't work\n"); - goto bail; - } - ret = request_irq(dd->pcidev->irq, qib_7322intr, - IRQF_SHARED, QIB_DRV_NAME, dd); + ret = pci_request_irq(dd->pcidev, 0, qib_7322intr, NULL, dd, + QIB_DRV_NAME); if (ret) { - qib_dev_err(dd, + qib_dev_err( + dd, "Couldn't setup INTx interrupt (irq=%d): %d\n", - dd->pcidev->irq, ret); - goto bail; + pci_irq_vector(dd->pcidev, 0), ret); + return; } - dd->cspec->irq = dd->pcidev->irq; dd->cspec->main_int_mask = ~0ULL; - goto bail; + return; } /* Try to get MSIx interrupts */ @@ -3453,15 +3431,10 @@ try_intx: for (i = 0; msixnum < dd->cspec->num_msix_entries; i++) { irq_handler_t handler; void *arg; - u64 val; int lsb, reg, sh; #ifdef CONFIG_INFINIBAND_QIB_DCA int dca = 0; #endif - - dd->cspec->msix_entries[msixnum]. - name[sizeof(dd->cspec->msix_entries[msixnum].name) - 1] - = '\0'; if (i < ARRAY_SIZE(irq_table)) { if (irq_table[i].port) { /* skip if for a non-configured port */ @@ -3475,11 +3448,10 @@ try_intx: #endif lsb = irq_table[i].lsb; handler = irq_table[i].handler; - snprintf(dd->cspec->msix_entries[msixnum].name, - sizeof(dd->cspec->msix_entries[msixnum].name) - - 1, - QIB_DRV_NAME "%d%s", dd->unit, - irq_table[i].name); + ret = pci_request_irq(dd->pcidev, msixnum, handler, + NULL, arg, QIB_DRV_NAME "%d%s", + dd->unit, + irq_table[i].name); } else { unsigned ctxt; @@ -3495,37 +3467,25 @@ try_intx: #endif lsb = QIB_I_RCVAVAIL_LSB + ctxt; handler = qib_7322pintr; - snprintf(dd->cspec->msix_entries[msixnum].name, - sizeof(dd->cspec->msix_entries[msixnum].name) - - 1, - QIB_DRV_NAME "%d (kctx)", dd->unit); + ret = pci_request_irq(dd->pcidev, msixnum, handler, + NULL, arg, + QIB_DRV_NAME "%d (kctx)", + dd->unit); } - dd->cspec->msix_entries[msixnum].irq = pci_irq_vector( - dd->pcidev, msixnum); - if (dd->cspec->msix_entries[msixnum].irq < 0) { - qib_dev_err(dd, - "Couldn't get MSIx irq (vec=%d): %d\n", - msixnum, - dd->cspec->msix_entries[msixnum].irq); - qib_7322_nomsix(dd); - goto try_intx; - } - ret = request_irq(dd->cspec->msix_entries[msixnum].irq, - handler, 0, - dd->cspec->msix_entries[msixnum].name, - arg); if (ret) { /* * Shouldn't happen since the enable said we could * have as many as we are trying to setup here. */ qib_dev_err(dd, - "Couldn't setup MSIx interrupt (vec=%d, irq=%d): %d\n", - msixnum, - dd->cspec->msix_entries[msixnum].irq, - ret); - qib_7322_nomsix(dd); + "Couldn't setup MSIx interrupt (vec=%d, irq=%d): %d\n", + msixnum, + pci_irq_vector(dd->pcidev, msixnum), + ret); + qib_7322_free_irq(dd); + pci_alloc_irq_vectors(dd->pcidev, 1, 1, + PCI_IRQ_LEGACY); goto try_intx; } dd->cspec->msix_entries[msixnum].arg = arg; @@ -3541,8 +3501,8 @@ try_intx: mask &= ~(1ULL << lsb); redirect[reg] |= ((u64) msixnum) << sh; } - val = qib_read_kreg64(dd, 2 * msixnum + 1 + - (QIB_7322_MsixTable_OFFS / sizeof(u64))); + qib_read_kreg64(dd, 2 * msixnum + 1 + + (QIB_7322_MsixTable_OFFS / sizeof(u64))); if (firstcpu < nr_cpu_ids && zalloc_cpumask_var( &dd->cspec->msix_entries[msixnum].mask, @@ -3559,7 +3519,7 @@ try_intx: dd->cspec->msix_entries[msixnum].mask); } irq_set_affinity_hint( - dd->cspec->msix_entries[msixnum].irq, + pci_irq_vector(dd->pcidev, msixnum), dd->cspec->msix_entries[msixnum].mask); } msixnum++; @@ -3570,7 +3530,6 @@ try_intx: dd->cspec->main_int_mask = mask; tasklet_init(&dd->error_tasklet, qib_error_tasklet, (unsigned long)dd); -bail:; } /** @@ -3674,8 +3633,9 @@ static int qib_do_7322_reset(struct qib_devdata *dd) /* no interrupts till re-initted */ qib_7322_set_intr_state(dd, 0); + qib_7322_free_irq(dd); + if (msix_entries) { - qib_7322_nomsix(dd); /* can be up to 512 bytes, too big for stack */ msix_vecsave = kmalloc(2 * dd->cspec->num_msix_entries * sizeof(u64), GFP_KERNEL); @@ -3765,11 +3725,11 @@ static int qib_do_7322_reset(struct qib_devdata *dd) write_7322_init_portregs(&dd->pport[i]); write_7322_initregs(dd); - if (qib_pcie_params(dd, dd->lbus_width, - &dd->cspec->num_msix_entries)) + if (qib_pcie_params(dd, dd->lbus_width, &msix_entries)) qib_dev_err(dd, "Reset failed to setup PCIe or interrupts; continuing anyway\n"); + dd->cspec->num_msix_entries = msix_entries; qib_setup_7322_interrupt(dd, 1); for (i = 0; i < dd->num_pports; ++i) { @@ -5197,8 +5157,9 @@ static int qib_7322_intr_fallback(struct qib_devdata *dd) qib_devinfo(dd->pcidev, "MSIx interrupt not detected, trying INTx interrupts\n"); - qib_7322_nomsix(dd); - qib_enable_intx(dd); + qib_7322_free_irq(dd); + if (pci_alloc_irq_vectors(dd->pcidev, 1, 1, PCI_IRQ_LEGACY) < 0) + qib_dev_err(dd, "Failed to enable INTx\n"); qib_setup_7322_interrupt(dd, 0); return 1; } @@ -5396,16 +5357,11 @@ static void try_7322_autoneg(struct qib_pportdata *ppd) static void autoneg_7322_work(struct work_struct *work) { struct qib_pportdata *ppd; - struct qib_devdata *dd; - u64 startms; u32 i; unsigned long flags; ppd = container_of(work, struct qib_chippport_specific, autoneg_work.work)->ppd; - dd = ppd->dd; - - startms = jiffies_to_msecs(jiffies); /* * Busy wait for this first part, it should be at most a @@ -7845,13 +7801,12 @@ static void ibsd_wr_allchans(struct qib_pportdata *ppd, int addr, unsigned data, { struct qib_devdata *dd = ppd->dd; int chan; - u32 rbc; for (chan = 0; chan < SERDES_CHANS; ++chan) { ahb_mod(dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), addr, data, mask); - rbc = ahb_mod(dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), - addr, 0, 0); + ahb_mod(dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), addr, + 0, 0); } } diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 82d9da9b6997..841312f60dfd 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -280,7 +280,7 @@ static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev, { struct ib_node_info *nip = (struct ib_node_info *)&smp->data; struct qib_devdata *dd = dd_from_ibdev(ibdev); - u32 vendor, majrev, minrev; + u32 majrev, minrev; unsigned pidx = port - 1; /* IB number port from 1, hdw from 0 */ /* GUID 0 is illegal */ @@ -303,7 +303,6 @@ static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev, minrev = dd->minrev; nip->revision = cpu_to_be32((majrev << 16) | minrev); nip->local_port_num = port; - vendor = dd->vendorid; nip->vendor_id[0] = QIB_SRC_OUI_1; nip->vendor_id[1] = QIB_SRC_OUI_2; nip->vendor_id[2] = QIB_SRC_OUI_3; @@ -434,6 +433,7 @@ static int check_mkey(struct qib_ibport *ibp, struct ib_smp *smp, int mad_flags) /* Bad mkey not a violation below level 2 */ if (ibp->rvp.mkeyprot < 2) break; + /* fall through */ case IB_MGMT_METHOD_SET: case IB_MGMT_METHOD_TRAP_REPRESS: if (ibp->rvp.mkey_violations != 0xFFFF) @@ -2478,12 +2478,10 @@ void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx) /* Initialize xmit_wait structure */ dd->pport[port_idx].cong_stats.counter = 0; - init_timer(&dd->pport[port_idx].cong_stats.timer); - dd->pport[port_idx].cong_stats.timer.function = xmit_wait_timer_func; - dd->pport[port_idx].cong_stats.timer.data = - (unsigned long)(&dd->pport[port_idx]); - dd->pport[port_idx].cong_stats.timer.expires = 0; - add_timer(&dd->pport[port_idx].cong_stats.timer); + setup_timer(&dd->pport[port_idx].cong_stats.timer, + xmit_wait_timer_func, + (unsigned long)(&dd->pport[port_idx])); + mod_timer(&dd->pport[port_idx].cong_stats.timer, 0); } void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx) diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c index d90403e31a9d..5ac7b31c346b 100644 --- a/drivers/infiniband/hw/qib/qib_pcie.c +++ b/drivers/infiniband/hw/qib/qib_pcie.c @@ -193,7 +193,7 @@ void qib_pcie_ddcleanup(struct qib_devdata *dd) * chip reset (the kernel PCI infrastructure doesn't yet handle that * correctly. */ -static void qib_msi_setup(struct qib_devdata *dd, int pos) +static void qib_cache_msi_info(struct qib_devdata *dd, int pos) { struct pci_dev *pdev = dd->pcidev; u16 control; @@ -208,64 +208,39 @@ static void qib_msi_setup(struct qib_devdata *dd, int pos) &dd->msi_data); } -static int qib_allocate_irqs(struct qib_devdata *dd, u32 maxvec) -{ - unsigned int flags = PCI_IRQ_LEGACY; - - /* Check our capabilities */ - if (dd->pcidev->msix_cap) { - flags |= PCI_IRQ_MSIX; - } else { - if (dd->pcidev->msi_cap) { - flags |= PCI_IRQ_MSI; - /* Get msi_lo and msi_hi */ - qib_msi_setup(dd, dd->pcidev->msi_cap); - } - } - - if (!(flags & (PCI_IRQ_MSIX | PCI_IRQ_MSI))) - qib_dev_err(dd, "No PCI MSI or MSIx capability!\n"); - - return pci_alloc_irq_vectors(dd->pcidev, 1, maxvec, flags); -} - int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent) { u16 linkstat, speed; int nvec; int maxvec; - int ret = 0; + unsigned int flags = PCI_IRQ_MSIX | PCI_IRQ_MSI; if (!pci_is_pcie(dd->pcidev)) { qib_dev_err(dd, "Can't find PCI Express capability!\n"); /* set up something... */ dd->lbus_width = 1; dd->lbus_speed = 2500; /* Gen1, 2.5GHz */ - ret = -1; + nvec = -1; goto bail; } + if (dd->flags & QIB_HAS_INTX) + flags |= PCI_IRQ_LEGACY; maxvec = (nent && *nent) ? *nent : 1; - nvec = qib_allocate_irqs(dd, maxvec); - if (nvec < 0) { - ret = nvec; + nvec = pci_alloc_irq_vectors(dd->pcidev, 1, maxvec, flags); + if (nvec < 0) goto bail; - } /* - * If nent exists, make sure to record how many vectors were allocated + * If nent exists, make sure to record how many vectors were allocated. + * If msix_enabled is false, return 0 so the fallback code works + * correctly. */ - if (nent) { - *nent = nvec; + if (nent) + *nent = !dd->pcidev->msix_enabled ? 0 : nvec; - /* - * If we requested (nent) MSIX, but msix_enabled is not set, - * pci_alloc_irq_vectors() enabled INTx. - */ - if (!dd->pcidev->msix_enabled) - qib_dev_err(dd, - "no msix vectors allocated, using INTx\n"); - } + if (dd->pcidev->msi_enabled) + qib_cache_msi_info(dd, dd->pcidev->msi_cap); pcie_capability_read_word(dd->pcidev, PCI_EXP_LNKSTA, &linkstat); /* @@ -306,7 +281,21 @@ bail: /* fill in string, even on errors */ snprintf(dd->lbus_info, sizeof(dd->lbus_info), "PCIe,%uMHz,x%u\n", dd->lbus_speed, dd->lbus_width); - return ret; + return nvec < 0 ? nvec : 0; +} + +/** + * qib_free_irq - Cleanup INTx and MSI interrupts + * @dd: valid pointer to qib dev data + * + * Since cleanup for INTx and MSI interrupts is trivial, have a common + * routine. + * + */ +void qib_free_irq(struct qib_devdata *dd) +{ + pci_free_irq(dd->pcidev, 0, dd); + pci_free_irq_vectors(dd->pcidev); } /* @@ -351,10 +340,10 @@ int qib_reinit_intr(struct qib_devdata *dd) dd->msi_data); ret = 1; bail: - if (!ret && (dd->flags & QIB_HAS_INTX)) { - qib_enable_intx(dd); + qib_free_irq(dd); + + if (!ret && (dd->flags & QIB_HAS_INTX)) ret = 1; - } /* and now set the pci master bit again */ pci_set_master(dd->pcidev); @@ -363,56 +352,6 @@ bail: } /* - * Disable msi interrupt if enabled, and clear msi_lo. - * This is used primarily for the fallback to INTx, but - * is also used in reinit after reset, and during cleanup. - */ -void qib_nomsi(struct qib_devdata *dd) -{ - dd->msi_lo = 0; - pci_free_irq_vectors(dd->pcidev); -} - -/* - * Same as qib_nosmi, but for MSIx. - */ -void qib_nomsix(struct qib_devdata *dd) -{ - pci_free_irq_vectors(dd->pcidev); -} - -/* - * Similar to pci_intx(pdev, 1), except that we make sure - * msi(x) is off. - */ -void qib_enable_intx(struct qib_devdata *dd) -{ - u16 cw, new; - int pos; - struct pci_dev *pdev = dd->pcidev; - - if (pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY) < 0) - qib_dev_err(dd, "Failed to enable INTx\n"); - - pos = pdev->msi_cap; - if (pos) { - /* then turn off MSI */ - pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &cw); - new = cw & ~PCI_MSI_FLAGS_ENABLE; - if (new != cw) - pci_write_config_word(pdev, pos + PCI_MSI_FLAGS, new); - } - pos = pdev->msix_cap; - if (pos) { - /* then turn off MSIx */ - pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, &cw); - new = cw & ~PCI_MSIX_FLAGS_ENABLE; - if (new != cw) - pci_write_config_word(pdev, pos + PCI_MSIX_FLAGS, new); - } -} - -/* * These two routines are helper routines for the device reset code * to move all the pcie code out of the chip-specific driver code. */ @@ -458,7 +397,6 @@ MODULE_PARM_DESC(pcie_coalesce, "tune PCIe colescing on some Intel chipsets"); */ static void qib_tune_pcie_coalesce(struct qib_devdata *dd) { - int r; struct pci_dev *parent; u16 devid; u32 mask, bits, val; @@ -513,7 +451,7 @@ static void qib_tune_pcie_coalesce(struct qib_devdata *dd) pci_read_config_dword(parent, 0x48, &val); val &= ~mask; val |= bits; - r = pci_write_config_dword(parent, 0x48, val); + pci_write_config_dword(parent, 0x48, val); } /* diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c index e9a91736b12d..8f5754fb8579 100644 --- a/drivers/infiniband/hw/qib/qib_rc.c +++ b/drivers/infiniband/hw/qib/qib_rc.c @@ -1869,7 +1869,7 @@ send_middle: qp->r_rcv_len = 0; if (opcode == OP(SEND_ONLY)) goto no_immediate_data; - /* FALLTHROUGH for SEND_ONLY_WITH_IMMEDIATE */ + /* fall through -- for SEND_ONLY_WITH_IMMEDIATE */ case OP(SEND_LAST_WITH_IMMEDIATE): send_last_imm: wc.ex.imm_data = ohdr->u.imm_data; diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c index c72775f27212..ad52f7ac620c 100644 --- a/drivers/infiniband/hw/qib/qib_sd7220.c +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -755,7 +755,6 @@ static int qib_sd7220_ram_xfer(struct qib_devdata *dd, int sdnum, u32 loc, int addr; int ret; unsigned long flags; - const char *op; /* Pick appropriate transaction reg and "Chip select" for this serdes */ switch (sdnum) { @@ -775,7 +774,6 @@ static int qib_sd7220_ram_xfer(struct qib_devdata *dd, int sdnum, u32 loc, return -1; } - op = rd_notwr ? "Rd" : "Wr"; spin_lock_irqsave(&dd->cspec->sdepb_lock, flags); owned = epb_access(dd, sdnum, 1); diff --git a/drivers/infiniband/hw/qib/qib_sdma.c b/drivers/infiniband/hw/qib/qib_sdma.c index 891873b38a1e..c3690bd51582 100644 --- a/drivers/infiniband/hw/qib/qib_sdma.c +++ b/drivers/infiniband/hw/qib/qib_sdma.c @@ -808,7 +808,7 @@ void __qib_sdma_process_event(struct qib_pportdata *ppd, * bringing the link up with traffic active on * 7220, e.g. */ ss->go_s99_running = 1; - /* fall through and start dma engine */ + /* fall through -- and start dma engine */ case qib_sdma_event_e10_go_hw_start: /* This reference means the state machine is started */ sdma_get(&ppd->sdma_state); diff --git a/drivers/infiniband/hw/qib/qib_tx.c b/drivers/infiniband/hw/qib/qib_tx.c index eface3b3dacf..c9537cfc12ce 100644 --- a/drivers/infiniband/hw/qib/qib_tx.c +++ b/drivers/infiniband/hw/qib/qib_tx.c @@ -179,8 +179,6 @@ void qib_disarm_piobufs_set(struct qib_devdata *dd, unsigned long *mask, pppd[i] = NULL; for (i = 0; i < cnt; i++) { - int which; - if (!test_bit(i, mask)) continue; /* @@ -201,9 +199,7 @@ void qib_disarm_piobufs_set(struct qib_devdata *dd, unsigned long *mask, (!test_bit(i << 1, dd->pioavailkernel) && find_ctxt(dd, i))) { __set_bit(i, dd->pio_need_disarm); - which = 0; } else { - which = 1; dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(i)); } spin_unlock_irqrestore(&dd->pioavail_lock, flags); diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 9d92aeb8d9a1..46e2da09d05b 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -701,7 +701,7 @@ void qib_put_txreq(struct qib_verbs_txreq *tx) */ void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail) { - struct rvt_qp *qp, *nqp; + struct rvt_qp *qp; struct qib_qp_priv *qpp, *nqpp; struct rvt_qp *qps[20]; struct qib_ibdev *dev; @@ -714,7 +714,6 @@ void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail) /* Search wait list for first QP wanting DMA descriptors. */ list_for_each_entry_safe(qpp, nqpp, &dev->dmawait, iowait) { qp = qpp->owner; - nqp = nqpp->owner; if (qp->port_num != ppd->port) continue; if (n == ARRAY_SIZE(qps)) |