diff options
author | Jacob Keller <jacob.e.keller@intel.com> | 2017-01-13 02:59:39 +0300 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2017-04-06 08:47:30 +0300 |
commit | 469295578790150cf0ce3395bf815edce6e37fb1 (patch) | |
tree | 1df8e82e336e8b1fe85ed2a4eb7de7043ad7b02f /drivers/net/ethernet/intel/fm10k/fm10k_pci.c | |
parent | 3ee7b3a3b9deb26278af308743ec927847c70366 (diff) | |
download | linux-469295578790150cf0ce3395bf815edce6e37fb1.tar.xz |
fm10k: future-proof state bitmaps using DECLARE_BITMAP
This ensures that future programmers do not have to remember to re-size
the bitmaps due to adding new values. Although this is unlikely for this
driver, it may happen and it's best to prevent it from ever being an
issue.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_pci.c')
-rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 62 |
1 files changed, 31 insertions, 31 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index 7ae22dd5dd7c..2a54372975f6 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -93,18 +93,18 @@ static int fm10k_hw_ready(struct fm10k_intfc *interface) void fm10k_service_event_schedule(struct fm10k_intfc *interface) { - if (!test_bit(__FM10K_SERVICE_DISABLE, &interface->state) && - !test_and_set_bit(__FM10K_SERVICE_SCHED, &interface->state)) + if (!test_bit(__FM10K_SERVICE_DISABLE, interface->state) && + !test_and_set_bit(__FM10K_SERVICE_SCHED, interface->state)) queue_work(fm10k_workqueue, &interface->service_task); } static void fm10k_service_event_complete(struct fm10k_intfc *interface) { - WARN_ON(!test_bit(__FM10K_SERVICE_SCHED, &interface->state)); + WARN_ON(!test_bit(__FM10K_SERVICE_SCHED, interface->state)); /* flush memory to make sure state is correct before next watchog */ smp_mb__before_atomic(); - clear_bit(__FM10K_SERVICE_SCHED, &interface->state); + clear_bit(__FM10K_SERVICE_SCHED, interface->state); } /** @@ -159,7 +159,7 @@ static void fm10k_prepare_for_reset(struct fm10k_intfc *interface) /* put off any impending NetWatchDogTimeout */ netif_trans_update(netdev); - while (test_and_set_bit(__FM10K_RESETTING, &interface->state)) + while (test_and_set_bit(__FM10K_RESETTING, interface->state)) usleep_range(1000, 2000); rtnl_lock(); @@ -242,7 +242,7 @@ static int fm10k_handle_reset(struct fm10k_intfc *interface) rtnl_unlock(); - clear_bit(__FM10K_RESETTING, &interface->state); + clear_bit(__FM10K_RESETTING, interface->state); return err; err_open: @@ -254,7 +254,7 @@ reinit_err: rtnl_unlock(); - clear_bit(__FM10K_RESETTING, &interface->state); + clear_bit(__FM10K_RESETTING, interface->state); return err; } @@ -316,11 +316,11 @@ static void fm10k_watchdog_update_host_state(struct fm10k_intfc *interface) struct fm10k_hw *hw = &interface->hw; s32 err; - if (test_bit(__FM10K_LINK_DOWN, &interface->state)) { + if (test_bit(__FM10K_LINK_DOWN, interface->state)) { interface->host_ready = false; if (time_is_after_jiffies(interface->link_down_event)) return; - clear_bit(__FM10K_LINK_DOWN, &interface->state); + clear_bit(__FM10K_LINK_DOWN, interface->state); } if (test_bit(FM10K_FLAG_SWPRI_CONFIG, interface->flags)) { @@ -411,7 +411,7 @@ void fm10k_update_stats(struct fm10k_intfc *interface) int i; /* ensure only one thread updates stats at a time */ - if (test_and_set_bit(__FM10K_UPDATING_STATS, &interface->state)) + if (test_and_set_bit(__FM10K_UPDATING_STATS, interface->state)) return; /* do not allow stats update via service task for next second */ @@ -492,7 +492,7 @@ void fm10k_update_stats(struct fm10k_intfc *interface) net_stats->rx_errors = rx_errors; net_stats->rx_dropped = interface->stats.nodesc_drop.count; - clear_bit(__FM10K_UPDATING_STATS, &interface->state); + clear_bit(__FM10K_UPDATING_STATS, interface->state); } /** @@ -532,8 +532,8 @@ static void fm10k_watchdog_flush_tx(struct fm10k_intfc *interface) static void fm10k_watchdog_subtask(struct fm10k_intfc *interface) { /* if interface is down do nothing */ - if (test_bit(__FM10K_DOWN, &interface->state) || - test_bit(__FM10K_RESETTING, &interface->state)) + if (test_bit(__FM10K_DOWN, interface->state) || + test_bit(__FM10K_RESETTING, interface->state)) return; if (interface->host_ready) @@ -563,8 +563,8 @@ static void fm10k_check_hang_subtask(struct fm10k_intfc *interface) int i; /* If we're down or resetting, just bail */ - if (test_bit(__FM10K_DOWN, &interface->state) || - test_bit(__FM10K_RESETTING, &interface->state)) + if (test_bit(__FM10K_DOWN, interface->state) || + test_bit(__FM10K_RESETTING, interface->state)) return; /* rate limit tx hang checks to only once every 2 seconds */ @@ -663,7 +663,7 @@ static void fm10k_configure_tx_ring(struct fm10k_intfc *interface, FM10K_PFVTCTL_FTAG_DESC_ENABLE); /* Initialize XPS */ - if (!test_and_set_bit(__FM10K_TX_XPS_INIT_DONE, &ring->state) && + if (!test_and_set_bit(__FM10K_TX_XPS_INIT_DONE, ring->state) && ring->q_vector) netif_set_xps_queue(ring->netdev, &ring->q_vector->affinity_mask, @@ -980,7 +980,7 @@ void fm10k_netpoll(struct net_device *netdev) int i; /* if interface is down do nothing */ - if (test_bit(__FM10K_DOWN, &interface->state)) + if (test_bit(__FM10K_DOWN, interface->state)) return; for (i = 0; i < interface->num_q_vectors; i++) @@ -1173,7 +1173,7 @@ static irqreturn_t fm10k_msix_mbx_pf(int __always_unused irq, void *data) if (eicr & FM10K_EICR_SWITCHNOTREADY) { /* force link down for at least 4 seconds */ interface->link_down_event = jiffies + (4 * HZ); - set_bit(__FM10K_LINK_DOWN, &interface->state); + set_bit(__FM10K_LINK_DOWN, interface->state); /* reset dglort_map back to no config */ hw->mac.dglort_map = FM10K_DGLORTMAP_NONE; @@ -1325,7 +1325,7 @@ static s32 fm10k_lport_map(struct fm10k_hw *hw, u32 **results, if (!err && hw->swapi.status) { /* force link down for a reasonable delay */ interface->link_down_event = jiffies + (2 * HZ); - set_bit(__FM10K_LINK_DOWN, &interface->state); + set_bit(__FM10K_LINK_DOWN, interface->state); /* reset dglort_map back to no config */ hw->mac.dglort_map = FM10K_DGLORTMAP_NONE; @@ -1623,10 +1623,10 @@ void fm10k_up(struct fm10k_intfc *interface) hw->mac.ops.update_int_moderator(hw); /* enable statistics capture again */ - clear_bit(__FM10K_UPDATING_STATS, &interface->state); + clear_bit(__FM10K_UPDATING_STATS, interface->state); /* clear down bit to indicate we are ready to go */ - clear_bit(__FM10K_DOWN, &interface->state); + clear_bit(__FM10K_DOWN, interface->state); /* enable polling cleanups */ fm10k_napi_enable_all(interface); @@ -1660,7 +1660,7 @@ void fm10k_down(struct fm10k_intfc *interface) int err, i = 0, count = 0; /* signal that we are down to the interrupt handler and service task */ - if (test_and_set_bit(__FM10K_DOWN, &interface->state)) + if (test_and_set_bit(__FM10K_DOWN, interface->state)) return; /* call carrier off first to avoid false dev_watchdog timeouts */ @@ -1680,7 +1680,7 @@ void fm10k_down(struct fm10k_intfc *interface) fm10k_update_stats(interface); /* prevent updating statistics while we're down */ - while (test_and_set_bit(__FM10K_UPDATING_STATS, &interface->state)) + while (test_and_set_bit(__FM10K_UPDATING_STATS, interface->state)) usleep_range(1000, 2000); /* skip waiting for TX DMA if we lost PCIe link */ @@ -1849,8 +1849,8 @@ static int fm10k_sw_init(struct fm10k_intfc *interface, memcpy(interface->rssrk, rss_key, sizeof(rss_key)); /* Start off interface as being down */ - set_bit(__FM10K_DOWN, &interface->state); - set_bit(__FM10K_UPDATING_STATS, &interface->state); + set_bit(__FM10K_DOWN, interface->state); + set_bit(__FM10K_UPDATING_STATS, interface->state); return 0; } @@ -2027,7 +2027,7 @@ static int fm10k_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * must ensure it is disabled since we haven't yet requested the timer * or work item. */ - set_bit(__FM10K_SERVICE_DISABLE, &interface->state); + set_bit(__FM10K_SERVICE_DISABLE, interface->state); err = fm10k_mbx_request_irq(interface); if (err) @@ -2068,7 +2068,7 @@ static int fm10k_probe(struct pci_dev *pdev, const struct pci_device_id *ent) fm10k_iov_configure(pdev, 0); /* clear the service task disable bit to allow service task to start */ - clear_bit(__FM10K_SERVICE_DISABLE, &interface->state); + clear_bit(__FM10K_SERVICE_DISABLE, interface->state); return 0; @@ -2106,7 +2106,7 @@ static void fm10k_remove(struct pci_dev *pdev) del_timer_sync(&interface->service_timer); - set_bit(__FM10K_SERVICE_DISABLE, &interface->state); + set_bit(__FM10K_SERVICE_DISABLE, interface->state); cancel_work_sync(&interface->service_task); /* free netdev, this may bounce the interrupts due to setup_tc */ @@ -2145,7 +2145,7 @@ static void fm10k_prepare_suspend(struct fm10k_intfc *interface) * stopped. We stop the watchdog task until after we resume software * activity. */ - set_bit(__FM10K_SERVICE_DISABLE, &interface->state); + set_bit(__FM10K_SERVICE_DISABLE, interface->state); cancel_work_sync(&interface->service_task); fm10k_prepare_for_reset(interface); @@ -2171,10 +2171,10 @@ static int fm10k_handle_resume(struct fm10k_intfc *interface) /* force link to stay down for a second to prevent link flutter */ interface->link_down_event = jiffies + (HZ); - set_bit(__FM10K_LINK_DOWN, &interface->state); + set_bit(__FM10K_LINK_DOWN, interface->state); /* clear the service task disable bit to allow service task to start */ - clear_bit(__FM10K_SERVICE_DISABLE, &interface->state); + clear_bit(__FM10K_SERVICE_DISABLE, interface->state); fm10k_service_event_schedule(interface); return err; |