diff options
Diffstat (limited to 'drivers/infiniband/hw')
25 files changed, 259 insertions, 189 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index b6a953aed7e8..80f988984f44 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -333,6 +333,8 @@ static void remove_ep_tid(struct c4iw_ep *ep) spin_lock_irqsave(&ep->com.dev->lock, flags); _remove_handle(ep->com.dev, &ep->com.dev->hwtid_idr, ep->hwtid, 0); + if (idr_is_empty(&ep->com.dev->hwtid_idr)) + wake_up(&ep->com.dev->wait); spin_unlock_irqrestore(&ep->com.dev->lock, flags); } @@ -2117,8 +2119,10 @@ static int import_ep(struct c4iw_ep *ep, int iptype, __u8 *peer_ip, } ep->l2t = cxgb4_l2t_get(cdev->rdev.lldi.l2t, n, pdev, rt_tos2priority(tos)); - if (!ep->l2t) + if (!ep->l2t) { + dev_put(pdev); goto out; + } ep->mtu = pdev->mtu; ep->tx_chan = cxgb4_port_chan(pdev); ep->smac_idx = cxgb4_tp_smt_idx(adapter_type, diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index 071d7332ec06..3c4b2126e0d1 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -872,9 +872,13 @@ static void c4iw_rdev_close(struct c4iw_rdev *rdev) static void c4iw_dealloc(struct uld_ctx *ctx) { c4iw_rdev_close(&ctx->dev->rdev); + WARN_ON_ONCE(!idr_is_empty(&ctx->dev->cqidr)); idr_destroy(&ctx->dev->cqidr); + WARN_ON_ONCE(!idr_is_empty(&ctx->dev->qpidr)); idr_destroy(&ctx->dev->qpidr); + WARN_ON_ONCE(!idr_is_empty(&ctx->dev->mmidr)); idr_destroy(&ctx->dev->mmidr); + wait_event(ctx->dev->wait, idr_is_empty(&ctx->dev->hwtid_idr)); idr_destroy(&ctx->dev->hwtid_idr); idr_destroy(&ctx->dev->stid_idr); idr_destroy(&ctx->dev->atid_idr); @@ -992,6 +996,7 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) mutex_init(&devp->rdev.stats.lock); mutex_init(&devp->db_mutex); INIT_LIST_HEAD(&devp->db_fc_list); + init_waitqueue_head(&devp->wait); devp->avail_ird = devp->rdev.lldi.max_ird_adapter; if (c4iw_debugfs_root) { diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index aa47e0ae80bc..4b83b84f7ddf 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -263,6 +263,7 @@ struct c4iw_dev { struct idr stid_idr; struct list_head db_fc_list; u32 avail_ird; + wait_queue_head_t wait; }; static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index edb1172b6f54..690435229be7 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -683,7 +683,7 @@ static int build_inv_stag(union t4_wr *wqe, struct ib_send_wr *wr, return 0; } -void _free_qp(struct kref *kref) +static void _free_qp(struct kref *kref) { struct c4iw_qp *qhp; diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index b32638d58ae8..cc38004cea42 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -9490,6 +9490,78 @@ static void init_lcb(struct hfi1_devdata *dd) write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x00); } +/* + * Perform a test read on the QSFP. Return 0 on success, -ERRNO + * on error. + */ +static int test_qsfp_read(struct hfi1_pportdata *ppd) +{ + int ret; + u8 status; + + /* report success if not a QSFP */ + if (ppd->port_type != PORT_TYPE_QSFP) + return 0; + + /* read byte 2, the status byte */ + ret = one_qsfp_read(ppd, ppd->dd->hfi1_id, 2, &status, 1); + if (ret < 0) + return ret; + if (ret != 1) + return -EIO; + + return 0; /* success */ +} + +/* + * Values for QSFP retry. + * + * Give up after 10s (20 x 500ms). The overall timeout was empirically + * arrived at from experience on a large cluster. + */ +#define MAX_QSFP_RETRIES 20 +#define QSFP_RETRY_WAIT 500 /* msec */ + +/* + * Try a QSFP read. If it fails, schedule a retry for later. + * Called on first link activation after driver load. + */ +static void try_start_link(struct hfi1_pportdata *ppd) +{ + if (test_qsfp_read(ppd)) { + /* read failed */ + if (ppd->qsfp_retry_count >= MAX_QSFP_RETRIES) { + dd_dev_err(ppd->dd, "QSFP not responding, giving up\n"); + return; + } + dd_dev_info(ppd->dd, + "QSFP not responding, waiting and retrying %d\n", + (int)ppd->qsfp_retry_count); + ppd->qsfp_retry_count++; + queue_delayed_work(ppd->hfi1_wq, &ppd->start_link_work, + msecs_to_jiffies(QSFP_RETRY_WAIT)); + return; + } + ppd->qsfp_retry_count = 0; + + /* + * Tune the SerDes to a ballpark setting for optimal signal and bit + * error rate. Needs to be done before starting the link. + */ + tune_serdes(ppd); + start_link(ppd); +} + +/* + * Workqueue function to start the link after a delay. + */ +void handle_start_link(struct work_struct *work) +{ + struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, + start_link_work.work); + try_start_link(ppd); +} + int bringup_serdes(struct hfi1_pportdata *ppd) { struct hfi1_devdata *dd = ppd->dd; @@ -9525,14 +9597,8 @@ int bringup_serdes(struct hfi1_pportdata *ppd) set_qsfp_int_n(ppd, 1); } - /* - * Tune the SerDes to a ballpark setting for - * optimal signal and bit error rate - * Needs to be done before starting the link - */ - tune_serdes(ppd); - - return start_link(ppd); + try_start_link(ppd); + return 0; } void hfi1_quiet_serdes(struct hfi1_pportdata *ppd) @@ -9549,6 +9615,10 @@ void hfi1_quiet_serdes(struct hfi1_pportdata *ppd) ppd->driver_link_ready = 0; ppd->link_enabled = 0; + ppd->qsfp_retry_count = MAX_QSFP_RETRIES; /* prevent more retries */ + flush_delayed_work(&ppd->start_link_work); + cancel_delayed_work_sync(&ppd->start_link_work); + ppd->offline_disabled_reason = HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED); set_link_down_reason(ppd, OPA_LINKDOWN_REASON_SMA_DISABLED, 0, @@ -12865,7 +12935,7 @@ fail: */ static int set_up_context_variables(struct hfi1_devdata *dd) { - int num_kernel_contexts; + unsigned long num_kernel_contexts; int total_contexts; int ret; unsigned ngroups; @@ -12894,9 +12964,9 @@ static int set_up_context_variables(struct hfi1_devdata *dd) */ if (num_kernel_contexts > (dd->chip_send_contexts - num_vls - 1)) { dd_dev_err(dd, - "Reducing # kernel rcv contexts to: %d, from %d\n", + "Reducing # kernel rcv contexts to: %d, from %lu\n", (int)(dd->chip_send_contexts - num_vls - 1), - (int)num_kernel_contexts); + num_kernel_contexts); num_kernel_contexts = dd->chip_send_contexts - num_vls - 1; } /* diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h index ed11107c50fe..e29573769efc 100644 --- a/drivers/infiniband/hw/hfi1/chip.h +++ b/drivers/infiniband/hw/hfi1/chip.h @@ -706,6 +706,7 @@ void handle_link_up(struct work_struct *work); void handle_link_down(struct work_struct *work); void handle_link_downgrade(struct work_struct *work); void handle_link_bounce(struct work_struct *work); +void handle_start_link(struct work_struct *work); void handle_sma_message(struct work_struct *work); void reset_qsfp(struct hfi1_pportdata *ppd); void qsfp_event(struct work_struct *work); diff --git a/drivers/infiniband/hw/hfi1/debugfs.c b/drivers/infiniband/hw/hfi1/debugfs.c index a49cc88f08a2..5e9be16f6cd3 100644 --- a/drivers/infiniband/hw/hfi1/debugfs.c +++ b/drivers/infiniband/hw/hfi1/debugfs.c @@ -59,6 +59,40 @@ static struct dentry *hfi1_dbg_root; +/* wrappers to enforce srcu in seq file */ +static ssize_t hfi1_seq_read( + struct file *file, + char __user *buf, + size_t size, + loff_t *ppos) +{ + struct dentry *d = file->f_path.dentry; + int srcu_idx; + ssize_t r; + + r = debugfs_use_file_start(d, &srcu_idx); + if (likely(!r)) + r = seq_read(file, buf, size, ppos); + debugfs_use_file_finish(srcu_idx); + return r; +} + +static loff_t hfi1_seq_lseek( + struct file *file, + loff_t offset, + int whence) +{ + struct dentry *d = file->f_path.dentry; + int srcu_idx; + loff_t r; + + r = debugfs_use_file_start(d, &srcu_idx); + if (likely(!r)) + r = seq_lseek(file, offset, whence); + debugfs_use_file_finish(srcu_idx); + return r; +} + #define private2dd(file) (file_inode(file)->i_private) #define private2ppd(file) (file_inode(file)->i_private) @@ -87,8 +121,8 @@ static int _##name##_open(struct inode *inode, struct file *s) \ static const struct file_operations _##name##_file_ops = { \ .owner = THIS_MODULE, \ .open = _##name##_open, \ - .read = seq_read, \ - .llseek = seq_lseek, \ + .read = hfi1_seq_read, \ + .llseek = hfi1_seq_lseek, \ .release = seq_release \ } @@ -105,11 +139,9 @@ do { \ DEBUGFS_FILE_CREATE(#name, parent, data, &_##name##_file_ops, S_IRUGO) static void *_opcode_stats_seq_start(struct seq_file *s, loff_t *pos) -__acquires(RCU) { struct hfi1_opcode_stats_perctx *opstats; - rcu_read_lock(); if (*pos >= ARRAY_SIZE(opstats->stats)) return NULL; return pos; @@ -126,9 +158,7 @@ static void *_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) } static void _opcode_stats_seq_stop(struct seq_file *s, void *v) -__releases(RCU) { - rcu_read_unlock(); } static int _opcode_stats_seq_show(struct seq_file *s, void *v) @@ -285,12 +315,10 @@ DEBUGFS_SEQ_FILE_OPEN(qp_stats) DEBUGFS_FILE_OPS(qp_stats); static void *_sdes_seq_start(struct seq_file *s, loff_t *pos) -__acquires(RCU) { struct hfi1_ibdev *ibd; struct hfi1_devdata *dd; - rcu_read_lock(); ibd = (struct hfi1_ibdev *)s->private; dd = dd_from_dev(ibd); if (!dd->per_sdma || *pos >= dd->num_sdma) @@ -310,9 +338,7 @@ static void *_sdes_seq_next(struct seq_file *s, void *v, loff_t *pos) } static void _sdes_seq_stop(struct seq_file *s, void *v) -__releases(RCU) { - rcu_read_unlock(); } static int _sdes_seq_show(struct seq_file *s, void *v) @@ -339,11 +365,9 @@ static ssize_t dev_counters_read(struct file *file, char __user *buf, struct hfi1_devdata *dd; ssize_t rval; - rcu_read_lock(); dd = private2dd(file); avail = hfi1_read_cntrs(dd, NULL, &counters); rval = simple_read_from_buffer(buf, count, ppos, counters, avail); - rcu_read_unlock(); return rval; } @@ -356,11 +380,9 @@ static ssize_t dev_names_read(struct file *file, char __user *buf, struct hfi1_devdata *dd; ssize_t rval; - rcu_read_lock(); dd = private2dd(file); avail = hfi1_read_cntrs(dd, &names, NULL); rval = simple_read_from_buffer(buf, count, ppos, names, avail); - rcu_read_unlock(); return rval; } @@ -383,11 +405,9 @@ static ssize_t portnames_read(struct file *file, char __user *buf, struct hfi1_devdata *dd; ssize_t rval; - rcu_read_lock(); dd = private2dd(file); avail = hfi1_read_portcntrs(dd->pport, &names, NULL); rval = simple_read_from_buffer(buf, count, ppos, names, avail); - rcu_read_unlock(); return rval; } @@ -400,11 +420,9 @@ static ssize_t portcntrs_debugfs_read(struct file *file, char __user *buf, struct hfi1_pportdata *ppd; ssize_t rval; - rcu_read_lock(); ppd = private2ppd(file); avail = hfi1_read_portcntrs(ppd, NULL, &counters); rval = simple_read_from_buffer(buf, count, ppos, counters, avail); - rcu_read_unlock(); return rval; } @@ -434,16 +452,13 @@ static ssize_t asic_flags_read(struct file *file, char __user *buf, int used; int i; - rcu_read_lock(); ppd = private2ppd(file); dd = ppd->dd; size = PAGE_SIZE; used = 0; tmp = kmalloc(size, GFP_KERNEL); - if (!tmp) { - rcu_read_unlock(); + if (!tmp) return -ENOMEM; - } scratch0 = read_csr(dd, ASIC_CFG_SCRATCH); used += scnprintf(tmp + used, size - used, @@ -470,7 +485,6 @@ static ssize_t asic_flags_read(struct file *file, char __user *buf, used += scnprintf(tmp + used, size - used, "Write bits to clear\n"); ret = simple_read_from_buffer(buf, count, ppos, tmp, used); - rcu_read_unlock(); kfree(tmp); return ret; } @@ -486,15 +500,12 @@ static ssize_t asic_flags_write(struct file *file, const char __user *buf, u64 scratch0; u64 clear; - rcu_read_lock(); ppd = private2ppd(file); dd = ppd->dd; buff = kmalloc(count + 1, GFP_KERNEL); - if (!buff) { - ret = -ENOMEM; - goto do_return; - } + if (!buff) + return -ENOMEM; ret = copy_from_user(buff, buf, count); if (ret > 0) { @@ -527,8 +538,6 @@ static ssize_t asic_flags_write(struct file *file, const char __user *buf, do_free: kfree(buff); - do_return: - rcu_read_unlock(); return ret; } @@ -542,18 +551,14 @@ static ssize_t qsfp_debugfs_dump(struct file *file, char __user *buf, char *tmp; int ret; - rcu_read_lock(); ppd = private2ppd(file); tmp = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (!tmp) { - rcu_read_unlock(); + if (!tmp) return -ENOMEM; - } ret = qsfp_dump(ppd, tmp, PAGE_SIZE); if (ret > 0) ret = simple_read_from_buffer(buf, count, ppos, tmp, ret); - rcu_read_unlock(); kfree(tmp); return ret; } @@ -569,7 +574,6 @@ static ssize_t __i2c_debugfs_write(struct file *file, const char __user *buf, int offset; int total_written; - rcu_read_lock(); ppd = private2ppd(file); /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */ @@ -577,16 +581,12 @@ static ssize_t __i2c_debugfs_write(struct file *file, const char __user *buf, offset = *ppos & 0xffff; /* explicitly reject invalid address 0 to catch cp and cat */ - if (i2c_addr == 0) { - ret = -EINVAL; - goto _return; - } + if (i2c_addr == 0) + return -EINVAL; buff = kmalloc(count, GFP_KERNEL); - if (!buff) { - ret = -ENOMEM; - goto _return; - } + if (!buff) + return -ENOMEM; ret = copy_from_user(buff, buf, count); if (ret > 0) { @@ -606,8 +606,6 @@ static ssize_t __i2c_debugfs_write(struct file *file, const char __user *buf, _free: kfree(buff); - _return: - rcu_read_unlock(); return ret; } @@ -636,7 +634,6 @@ static ssize_t __i2c_debugfs_read(struct file *file, char __user *buf, int offset; int total_read; - rcu_read_lock(); ppd = private2ppd(file); /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */ @@ -644,16 +641,12 @@ static ssize_t __i2c_debugfs_read(struct file *file, char __user *buf, offset = *ppos & 0xffff; /* explicitly reject invalid address 0 to catch cp and cat */ - if (i2c_addr == 0) { - ret = -EINVAL; - goto _return; - } + if (i2c_addr == 0) + return -EINVAL; buff = kmalloc(count, GFP_KERNEL); - if (!buff) { - ret = -ENOMEM; - goto _return; - } + if (!buff) + return -ENOMEM; total_read = i2c_read(ppd, target, i2c_addr, offset, buff, count); if (total_read < 0) { @@ -673,8 +666,6 @@ static ssize_t __i2c_debugfs_read(struct file *file, char __user *buf, _free: kfree(buff); - _return: - rcu_read_unlock(); return ret; } @@ -701,26 +692,20 @@ static ssize_t __qsfp_debugfs_write(struct file *file, const char __user *buf, int ret; int total_written; - rcu_read_lock(); - if (*ppos + count > QSFP_PAGESIZE * 4) { /* base page + page00-page03 */ - ret = -EINVAL; - goto _return; - } + if (*ppos + count > QSFP_PAGESIZE * 4) /* base page + page00-page03 */ + return -EINVAL; ppd = private2ppd(file); buff = kmalloc(count, GFP_KERNEL); - if (!buff) { - ret = -ENOMEM; - goto _return; - } + if (!buff) + return -ENOMEM; ret = copy_from_user(buff, buf, count); if (ret > 0) { ret = -EFAULT; goto _free; } - total_written = qsfp_write(ppd, target, *ppos, buff, count); if (total_written < 0) { ret = total_written; @@ -733,8 +718,6 @@ static ssize_t __qsfp_debugfs_write(struct file *file, const char __user *buf, _free: kfree(buff); - _return: - rcu_read_unlock(); return ret; } @@ -761,7 +744,6 @@ static ssize_t __qsfp_debugfs_read(struct file *file, char __user *buf, int ret; int total_read; - rcu_read_lock(); if (*ppos + count > QSFP_PAGESIZE * 4) { /* base page + page00-page03 */ ret = -EINVAL; goto _return; @@ -794,7 +776,6 @@ static ssize_t __qsfp_debugfs_read(struct file *file, char __user *buf, _free: kfree(buff); _return: - rcu_read_unlock(); return ret; } @@ -1010,7 +991,6 @@ void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd) debugfs_remove_recursive(ibd->hfi1_ibdev_dbg); out: ibd->hfi1_ibdev_dbg = NULL; - synchronize_rcu(); } /* @@ -1035,9 +1015,7 @@ static const char * const hfi1_statnames[] = { }; static void *_driver_stats_names_seq_start(struct seq_file *s, loff_t *pos) -__acquires(RCU) { - rcu_read_lock(); if (*pos >= ARRAY_SIZE(hfi1_statnames)) return NULL; return pos; @@ -1055,9 +1033,7 @@ static void *_driver_stats_names_seq_next( } static void _driver_stats_names_seq_stop(struct seq_file *s, void *v) -__releases(RCU) { - rcu_read_unlock(); } static int _driver_stats_names_seq_show(struct seq_file *s, void *v) @@ -1073,9 +1049,7 @@ DEBUGFS_SEQ_FILE_OPEN(driver_stats_names) DEBUGFS_FILE_OPS(driver_stats_names); static void *_driver_stats_seq_start(struct seq_file *s, loff_t *pos) -__acquires(RCU) { - rcu_read_lock(); if (*pos >= ARRAY_SIZE(hfi1_statnames)) return NULL; return pos; @@ -1090,9 +1064,7 @@ static void *_driver_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) } static void _driver_stats_seq_stop(struct seq_file *s, void *v) -__releases(RCU) { - rcu_read_unlock(); } static u64 hfi1_sps_ints(void) diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h index a021e660d482..325ec211370f 100644 --- a/drivers/infiniband/hw/hfi1/hfi.h +++ b/drivers/infiniband/hw/hfi1/hfi.h @@ -605,6 +605,7 @@ struct hfi1_pportdata { struct work_struct freeze_work; struct work_struct link_downgrade_work; struct work_struct link_bounce_work; + struct delayed_work start_link_work; /* host link state variables */ struct mutex hls_lock; u32 host_link_state; @@ -659,6 +660,7 @@ struct hfi1_pportdata { u8 linkinit_reason; u8 local_tx_rate; /* rate given to 8051 firmware */ u8 last_pstate; /* info only */ + u8 qsfp_retry_count; /* placeholders for IB MAD packet settings */ u8 overrun_threshold; @@ -1804,7 +1806,7 @@ extern unsigned int hfi1_max_mtu; extern unsigned int hfi1_cu; extern unsigned int user_credit_return_threshold; extern int num_user_contexts; -extern unsigned n_krcvqs; +extern unsigned long n_krcvqs; extern uint krcvqs[]; extern int krcvqsset; extern uint kdeth_qp; diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index b7935451093c..384b43d2fd49 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -94,7 +94,7 @@ module_param_array(krcvqs, uint, &krcvqsset, S_IRUGO); MODULE_PARM_DESC(krcvqs, "Array of the number of non-control kernel receive queues by VL"); /* computed based on above array */ -unsigned n_krcvqs; +unsigned long n_krcvqs; static unsigned hfi1_rcvarr_split = 25; module_param_named(rcvarr_split, hfi1_rcvarr_split, uint, S_IRUGO); @@ -500,6 +500,7 @@ void hfi1_init_pportdata(struct pci_dev *pdev, struct hfi1_pportdata *ppd, INIT_WORK(&ppd->link_downgrade_work, handle_link_downgrade); INIT_WORK(&ppd->sma_message_work, handle_sma_message); INIT_WORK(&ppd->link_bounce_work, handle_link_bounce); + INIT_DELAYED_WORK(&ppd->start_link_work, handle_start_link); INIT_WORK(&ppd->linkstate_active_work, receive_interrupt_work); INIT_WORK(&ppd->qsfp_info.qsfp_work, qsfp_event); diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c index 39e42c373a01..7ffc14f21523 100644 --- a/drivers/infiniband/hw/hfi1/mad.c +++ b/drivers/infiniband/hw/hfi1/mad.c @@ -2604,7 +2604,7 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp, u8 lq, num_vls; u8 res_lli, res_ler; u64 port_mask; - unsigned long port_num; + u8 port_num; unsigned long vl; u32 vl_select_mask; int vfi; @@ -2638,9 +2638,9 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp, */ port_mask = be64_to_cpu(req->port_select_mask[3]); port_num = find_first_bit((unsigned long *)&port_mask, - sizeof(port_mask)); + sizeof(port_mask) * 8); - if ((u8)port_num != port) { + if (port_num != port) { pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; return reply((struct ib_mad_hdr *)pmp); } @@ -2842,7 +2842,7 @@ static int pma_get_opa_porterrors(struct opa_pma_mad *pmp, */ port_mask = be64_to_cpu(req->port_select_mask[3]); port_num = find_first_bit((unsigned long *)&port_mask, - sizeof(port_mask)); + sizeof(port_mask) * 8); if (port_num != port) { pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; @@ -3015,7 +3015,7 @@ static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp, */ port_mask = be64_to_cpu(req->port_select_mask[3]); port_num = find_first_bit((unsigned long *)&port_mask, - sizeof(port_mask)); + sizeof(port_mask) * 8); if (port_num != port) { pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; @@ -3252,7 +3252,7 @@ static int pma_set_opa_errorinfo(struct opa_pma_mad *pmp, */ port_mask = be64_to_cpu(req->port_select_mask[3]); port_num = find_first_bit((unsigned long *)&port_mask, - sizeof(port_mask)); + sizeof(port_mask) * 8); if (port_num != port) { pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; diff --git a/drivers/infiniband/hw/hfi1/pio_copy.c b/drivers/infiniband/hw/hfi1/pio_copy.c index 8c25e1b58849..3a1ef3056282 100644 --- a/drivers/infiniband/hw/hfi1/pio_copy.c +++ b/drivers/infiniband/hw/hfi1/pio_copy.c @@ -771,6 +771,9 @@ void seg_pio_copy_mid(struct pio_buf *pbuf, const void *from, size_t nbytes) read_extra_bytes(pbuf, from, to_fill); from += to_fill; nbytes -= to_fill; + /* may not be enough valid bytes left to align */ + if (extra > nbytes) + extra = nbytes; /* ...now write carry */ dest = pbuf->start + (pbuf->qw_written * sizeof(u64)); @@ -798,6 +801,15 @@ void seg_pio_copy_mid(struct pio_buf *pbuf, const void *from, size_t nbytes) read_low_bytes(pbuf, from, extra); from += extra; nbytes -= extra; + /* + * If no bytes are left, return early - we are done. + * NOTE: This short-circuit is *required* because + * "extra" may have been reduced in size and "from" + * is not aligned, as required when leaving this + * if block. + */ + if (nbytes == 0) + return; } /* at this point, from is QW aligned */ diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c index 0ecf27903dc2..1694037d1eee 100644 --- a/drivers/infiniband/hw/hfi1/user_sdma.c +++ b/drivers/infiniband/hw/hfi1/user_sdma.c @@ -114,6 +114,8 @@ MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 12 #define KDETH_HCRC_LOWER_SHIFT 24 #define KDETH_HCRC_LOWER_MASK 0xff +#define AHG_KDETH_INTR_SHIFT 12 + #define PBC2LRH(x) ((((x) & 0xfff) << 2) - 4) #define LRH2PBC(x) ((((x) >> 2) + 1) & 0xfff) @@ -1480,7 +1482,8 @@ static int set_txreq_header_ahg(struct user_sdma_request *req, /* Clear KDETH.SH on last packet */ if (unlikely(tx->flags & TXREQ_FLAGS_REQ_LAST_PKT)) { val |= cpu_to_le16(KDETH_GET(hdr->kdeth.ver_tid_offset, - INTR) >> 16); + INTR) << + AHG_KDETH_INTR_SHIFT); val &= cpu_to_le16(~(1U << 13)); AHG_HEADER_SET(req->ahg, diff, 7, 16, 14, val); } else { diff --git a/drivers/infiniband/hw/i40iw/i40iw_hw.c b/drivers/infiniband/hw/i40iw/i40iw_hw.c index 3ee0cad96bc6..0c92a40b3e86 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_hw.c +++ b/drivers/infiniband/hw/i40iw/i40iw_hw.c @@ -265,6 +265,7 @@ void i40iw_next_iw_state(struct i40iw_qp *iwqp, info.dont_send_fin = false; if (iwqp->sc_qp.term_flags && (state == I40IW_QP_STATE_ERROR)) info.reset_tcp_conn = true; + iwqp->hw_iwarp_state = state; i40iw_hw_modify_qp(iwqp->iwdev, iwqp, &info, 0); } diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c index 0cbbe4038298..445e230d5ff8 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_main.c +++ b/drivers/infiniband/hw/i40iw/i40iw_main.c @@ -100,7 +100,7 @@ static struct notifier_block i40iw_net_notifier = { .notifier_call = i40iw_net_event }; -static int i40iw_notifiers_registered; +static atomic_t i40iw_notifiers_registered; /** * i40iw_find_i40e_handler - find a handler given a client info @@ -1342,12 +1342,11 @@ exit: */ static void i40iw_register_notifiers(void) { - if (!i40iw_notifiers_registered) { + if (atomic_inc_return(&i40iw_notifiers_registered) == 1) { register_inetaddr_notifier(&i40iw_inetaddr_notifier); register_inet6addr_notifier(&i40iw_inetaddr6_notifier); register_netevent_notifier(&i40iw_net_notifier); } - i40iw_notifiers_registered++; } /** @@ -1429,8 +1428,7 @@ static void i40iw_deinit_device(struct i40iw_device *iwdev, bool reset, bool del i40iw_del_macip_entry(iwdev, (u8)iwdev->mac_ip_table_idx); /* fallthrough */ case INET_NOTIFIER: - if (i40iw_notifiers_registered > 0) { - i40iw_notifiers_registered--; + if (!atomic_dec_return(&i40iw_notifiers_registered)) { unregister_netevent_notifier(&i40iw_net_notifier); unregister_inetaddr_notifier(&i40iw_inetaddr_notifier); unregister_inet6addr_notifier(&i40iw_inetaddr6_notifier); diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 006db6436e3b..5df63dacaaa3 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -687,12 +687,6 @@ repoll: is_error = (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == MLX4_CQE_OPCODE_ERROR; - if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == MLX4_OPCODE_NOP && - is_send)) { - pr_warn("Completion for NOP opcode detected!\n"); - return -EAGAIN; - } - /* Resize CQ in progress */ if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == MLX4_CQE_OPCODE_RESIZE)) { if (cq->resize_buf) { @@ -718,12 +712,6 @@ repoll: */ mqp = __mlx4_qp_lookup(to_mdev(cq->ibcq.device)->dev, be32_to_cpu(cqe->vlan_my_qpn)); - if (unlikely(!mqp)) { - pr_warn("CQ %06x with entry for unknown QPN %06x\n", - cq->mcq.cqn, be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_QPN_MASK); - return -EAGAIN; - } - *cur_qp = to_mibqp(mqp); } @@ -736,11 +724,6 @@ repoll: /* SRQ is also in the radix tree */ msrq = mlx4_srq_lookup(to_mdev(cq->ibcq.device)->dev, srq_num); - if (unlikely(!msrq)) { - pr_warn("CQ %06x with entry for unknown SRQN %06x\n", - cq->mcq.cqn, srq_num); - return -EAGAIN; - } } if (is_send) { @@ -891,7 +874,6 @@ int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) struct mlx4_ib_qp *cur_qp = NULL; unsigned long flags; int npolled; - int err = 0; struct mlx4_ib_dev *mdev = to_mdev(cq->ibcq.device); spin_lock_irqsave(&cq->lock, flags); @@ -901,8 +883,7 @@ int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) } for (npolled = 0; npolled < num_entries; ++npolled) { - err = mlx4_ib_poll_one(cq, &cur_qp, wc + npolled); - if (err) + if (mlx4_ib_poll_one(cq, &cur_qp, wc + npolled)) break; } @@ -911,10 +892,7 @@ int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) out: spin_unlock_irqrestore(&cq->lock, flags); - if (err == 0 || err == -EAGAIN) - return npolled; - else - return err; + return npolled; } int mlx4_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 9c2e53d28f98..0f21c3a25552 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -1128,6 +1128,27 @@ void handle_port_mgmt_change_event(struct work_struct *work) /* Generate GUID changed event */ if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK) { + if (mlx4_is_master(dev->dev)) { + union ib_gid gid; + int err = 0; + + if (!eqe->event.port_mgmt_change.params.port_info.gid_prefix) + err = __mlx4_ib_query_gid(&dev->ib_dev, port, 0, &gid, 1); + else + gid.global.subnet_prefix = + eqe->event.port_mgmt_change.params.port_info.gid_prefix; + if (err) { + pr_warn("Could not change QP1 subnet prefix for port %d: query_gid error (%d)\n", + port, err); + } else { + pr_debug("Changing QP1 subnet prefix for port %d. old=0x%llx. new=0x%llx\n", + port, + (u64)atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix), + be64_to_cpu(gid.global.subnet_prefix)); + atomic64_set(&dev->sriov.demux[port - 1].subnet_prefix, + be64_to_cpu(gid.global.subnet_prefix)); + } + } mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE); /*if master, notify all slaves*/ if (mlx4_is_master(dev->dev)) @@ -2202,6 +2223,8 @@ int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev) if (err) goto demux_err; dev->sriov.demux[i].guid_cache[0] = gid.global.interface_id; + atomic64_set(&dev->sriov.demux[i].subnet_prefix, + be64_to_cpu(gid.global.subnet_prefix)); err = alloc_pv_object(dev, mlx4_master_func_num(dev->dev), i + 1, &dev->sriov.sqps[i]); if (err) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 2af44c2de262..87ba9bca4181 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2202,6 +2202,9 @@ static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev) bool per_port = !!(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT); + if (mlx4_is_slave(ibdev->dev)) + return 0; + for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { /* i == 1 means we are building port counters */ if (i && !per_port) diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c index 8f7ad07915b0..097bfcc4ee99 100644 --- a/drivers/infiniband/hw/mlx4/mcg.c +++ b/drivers/infiniband/hw/mlx4/mcg.c @@ -489,7 +489,7 @@ static u8 get_leave_state(struct mcast_group *group) if (!group->members[i]) leave_state |= (1 << i); - return leave_state & (group->rec.scope_join_state & 7); + return leave_state & (group->rec.scope_join_state & 0xf); } static int join_group(struct mcast_group *group, int slave, u8 join_mask) @@ -564,8 +564,8 @@ static void mlx4_ib_mcg_timeout_handler(struct work_struct *work) } else mcg_warn_group(group, "DRIVER BUG\n"); } else if (group->state == MCAST_LEAVE_SENT) { - if (group->rec.scope_join_state & 7) - group->rec.scope_join_state &= 0xf8; + if (group->rec.scope_join_state & 0xf) + group->rec.scope_join_state &= 0xf0; group->state = MCAST_IDLE; mutex_unlock(&group->lock); if (release_group(group, 1)) @@ -605,7 +605,7 @@ static int handle_leave_req(struct mcast_group *group, u8 leave_mask, static int handle_join_req(struct mcast_group *group, u8 join_mask, struct mcast_req *req) { - u8 group_join_state = group->rec.scope_join_state & 7; + u8 group_join_state = group->rec.scope_join_state & 0xf; int ref = 0; u16 status; struct ib_sa_mcmember_data *sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data; @@ -690,8 +690,8 @@ static void mlx4_ib_mcg_work_handler(struct work_struct *work) u8 cur_join_state; resp_join_state = ((struct ib_sa_mcmember_data *) - group->response_sa_mad.data)->scope_join_state & 7; - cur_join_state = group->rec.scope_join_state & 7; + group->response_sa_mad.data)->scope_join_state & 0xf; + cur_join_state = group->rec.scope_join_state & 0xf; if (method == IB_MGMT_METHOD_GET_RESP) { /* successfull join */ @@ -710,7 +710,7 @@ process_requests: req = list_first_entry(&group->pending_list, struct mcast_req, group_list); sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data; - req_join_state = sa_data->scope_join_state & 0x7; + req_join_state = sa_data->scope_join_state & 0xf; /* For a leave request, we will immediately answer the VF, and * update our internal counters. The actual leave will be sent diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index 7c5832ede4bd..686ab48ff644 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -448,7 +448,7 @@ struct mlx4_ib_demux_ctx { struct workqueue_struct *wq; struct workqueue_struct *ud_wq; spinlock_t ud_lock; - __be64 subnet_prefix; + atomic64_t subnet_prefix; __be64 guid_cache[128]; struct mlx4_ib_dev *dev; /* the following lock protects both mcg_table and mcg_mgid0_list */ diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 768085f59566..7fb9629bd12b 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -2493,24 +2493,27 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_ud_wr *wr, sqp->ud_header.grh.flow_label = ah->av.ib.sl_tclass_flowlabel & cpu_to_be32(0xfffff); sqp->ud_header.grh.hop_limit = ah->av.ib.hop_limit; - if (is_eth) + if (is_eth) { memcpy(sqp->ud_header.grh.source_gid.raw, sgid.raw, 16); - else { - if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) { - /* When multi-function is enabled, the ib_core gid - * indexes don't necessarily match the hw ones, so - * we must use our own cache */ - sqp->ud_header.grh.source_gid.global.subnet_prefix = - to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1]. - subnet_prefix; - sqp->ud_header.grh.source_gid.global.interface_id = - to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1]. - guid_cache[ah->av.ib.gid_index]; - } else - ib_get_cached_gid(ib_dev, - be32_to_cpu(ah->av.ib.port_pd) >> 24, - ah->av.ib.gid_index, - &sqp->ud_header.grh.source_gid, NULL); + } else { + if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) { + /* When multi-function is enabled, the ib_core gid + * indexes don't necessarily match the hw ones, so + * we must use our own cache + */ + sqp->ud_header.grh.source_gid.global.subnet_prefix = + cpu_to_be64(atomic64_read(&(to_mdev(ib_dev)->sriov. + demux[sqp->qp.port - 1]. + subnet_prefix))); + sqp->ud_header.grh.source_gid.global.interface_id = + to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1]. + guid_cache[ah->av.ib.gid_index]; + } else { + ib_get_cached_gid(ib_dev, + be32_to_cpu(ah->av.ib.port_pd) >> 24, + ah->av.ib.gid_index, + &sqp->ud_header.grh.source_gid, NULL); + } } memcpy(sqp->ud_header.grh.destination_gid.raw, ah->av.ib.dgid, 16); diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 308a358e5b46..e4fac9292e4a 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -553,12 +553,6 @@ repoll: * from the table. */ mqp = __mlx5_qp_lookup(dev->mdev, qpn); - if (unlikely(!mqp)) { - mlx5_ib_warn(dev, "CQE@CQ %06x for unknown QPN %6x\n", - cq->mcq.cqn, qpn); - return -EINVAL; - } - *cur_qp = to_mibqp(mqp); } @@ -619,13 +613,6 @@ repoll: read_lock(&dev->mdev->priv.mkey_table.lock); mmkey = __mlx5_mr_lookup(dev->mdev, mlx5_base_mkey(be32_to_cpu(sig_err_cqe->mkey))); - if (unlikely(!mmkey)) { - read_unlock(&dev->mdev->priv.mkey_table.lock); - mlx5_ib_warn(dev, "CQE@CQ %06x for unknown MR %6x\n", - cq->mcq.cqn, be32_to_cpu(sig_err_cqe->mkey)); - return -EINVAL; - } - mr = to_mibmr(mmkey); get_sig_err_item(sig_err_cqe, &mr->sig->err_item); mr->sig->sig_err_exists = true; @@ -676,7 +663,6 @@ int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) unsigned long flags; int soft_polled = 0; int npolled; - int err = 0; spin_lock_irqsave(&cq->lock, flags); if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) { @@ -688,8 +674,7 @@ int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) soft_polled = poll_soft_wc(cq, num_entries, wc); for (npolled = 0; npolled < num_entries - soft_polled; npolled++) { - err = mlx5_poll_one(cq, &cur_qp, wc + soft_polled + npolled); - if (err) + if (mlx5_poll_one(cq, &cur_qp, wc + soft_polled + npolled)) break; } @@ -698,10 +683,7 @@ int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) out: spin_unlock_irqrestore(&cq->lock, flags); - if (err == 0 || err == -EAGAIN) - return soft_polled + npolled; - else - return err; + return soft_polled + npolled; } int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 1b4094baa2de..e19537cf44ab 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -288,7 +288,9 @@ __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num, static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev) { - return !MLX5_CAP_GEN(dev->mdev, ib_virt); + if (MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_IB) + return !MLX5_CAP_GEN(dev->mdev, ib_virt); + return 0; } enum { @@ -1428,6 +1430,13 @@ static int parse_flow_attr(u32 *match_c, u32 *match_v, dmac_47_16), ib_spec->eth.val.dst_mac); + ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c, + smac_47_16), + ib_spec->eth.mask.src_mac); + ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_v, + smac_47_16), + ib_spec->eth.val.src_mac); + if (ib_spec->eth.mask.vlan_tag) { MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, vlan_tag, 1); @@ -1849,6 +1858,7 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, int domain) { struct mlx5_ib_dev *dev = to_mdev(qp->device); + struct mlx5_ib_qp *mqp = to_mqp(qp); struct mlx5_ib_flow_handler *handler = NULL; struct mlx5_flow_destination *dst = NULL; struct mlx5_ib_flow_prio *ft_prio; @@ -1875,7 +1885,10 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, } dst->type = MLX5_FLOW_DESTINATION_TYPE_TIR; - dst->tir_num = to_mqp(qp)->raw_packet_qp.rq.tirn; + if (mqp->flags & MLX5_IB_QP_RSS) + dst->tir_num = mqp->rss_qp.tirn; + else + dst->tir_num = mqp->raw_packet_qp.rq.tirn; if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) { diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c index 40df2cca0609..996b54e366b0 100644 --- a/drivers/infiniband/hw/mlx5/mem.c +++ b/drivers/infiniband/hw/mlx5/mem.c @@ -71,7 +71,7 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift, addr = addr >> page_shift; tmp = (unsigned long)addr; - m = find_first_bit(&tmp, sizeof(tmp)); + m = find_first_bit(&tmp, BITS_PER_LONG); skip = 1 << m; mask = skip - 1; i = 0; @@ -81,7 +81,7 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift, for (k = 0; k < len; k++) { if (!(i & mask)) { tmp = (unsigned long)pfn; - m = min_t(unsigned long, m, find_first_bit(&tmp, sizeof(tmp))); + m = min_t(unsigned long, m, find_first_bit(&tmp, BITS_PER_LONG)); skip = 1 << m; mask = skip - 1; base = pfn; @@ -89,7 +89,7 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift, } else { if (base + p != pfn) { tmp = (unsigned long)p; - m = find_first_bit(&tmp, sizeof(tmp)); + m = find_first_bit(&tmp, BITS_PER_LONG); skip = 1 << m; mask = skip - 1; base = pfn; diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 372385d0f993..95146f4aa3e3 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -402,6 +402,7 @@ enum mlx5_ib_qp_flags { /* QP uses 1 as its source QP number */ MLX5_IB_QP_SQPN_QP1 = 1 << 6, MLX5_IB_QP_CAP_SCATTER_FCS = 1 << 7, + MLX5_IB_QP_RSS = 1 << 8, }; struct mlx5_umr_wr { diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 0dd7d93cac95..affc3f6598ca 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1449,6 +1449,7 @@ create_tir: kvfree(in); /* qpn is reserved for that QP */ qp->trans_qp.base.mqp.qpn = 0; + qp->flags |= MLX5_IB_QP_RSS; return 0; err: @@ -3658,12 +3659,8 @@ static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, struct ib_send_wr *wr, unsigned *idx, int *size, int nreq) { - int err = 0; - - if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { - err = -ENOMEM; - return err; - } + if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) + return -ENOMEM; *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); *seg = mlx5_get_send_wqe(qp, *idx); @@ -3679,7 +3676,7 @@ static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, *seg += sizeof(**ctrl); *size = sizeof(**ctrl) / 16; - return err; + return 0; } static void finish_wqe(struct mlx5_ib_qp *qp, @@ -3758,7 +3755,7 @@ int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, num_sge = wr->num_sge; if (unlikely(num_sge > qp->sq.max_gs)) { mlx5_ib_warn(dev, "\n"); - err = -ENOMEM; + err = -EINVAL; *bad_wr = wr; goto out; } |