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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-15 01:33:40 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-15 01:33:40 (GMT) |
commit | b4fe2a03422e6bd20bd8df5e428109a85c9ea961 (patch) | |
tree | b6505c0599251421fef39c9fa0655f255aac9ed6 /drivers/net/sfc/efx.c | |
parent | 85cb7f1264c4d9e60ccdce52740238222e77ccd0 (diff) | |
parent | 2a27a03d3a891e87ca33d27a858b4db734a4cbab (diff) | |
download | linux-fsl-qoriq-b4fe2a03422e6bd20bd8df5e428109a85c9ea961.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (75 commits)
pppoe.c: Fix kernel panic caused by __pppoe_xmit
WAN: Fix a TX IRQ causing BUG() in PC300 and PCI200SYN drivers.
bnx2x: Advance a version number to 1.60.01-0
bnx2x: Fixed a compilation warning
bnx2x: LSO code was broken on BE platforms
qlge: Fix deadlock when cancelling worker.
net: fix skb_defer_rx_timestamp()
cxgb4vf: Ingress Queue Entry Size needs to be 64 bytes
phy: add the IC+ IP1001 driver
atm: correct sysfs 'device' link creation and parent relationships
MAINTAINERS: remove me from tulip
SCTP: Fix SCTP_SET_PEER_PRIMARY_ADDR to accpet v4mapped address
enic: Bug Fix: Pass napi reference to the isr that services receive queue
ipv6: fix nl group when advertising a new link
connector: add module alias
net: Document the kernel_recvmsg() function
r8169: Fix runtime power management
hso: IP checksuming doesn't work on GE0301 option cards
xfrm: Fix xfrm_state_migrate leak
net: Convert netpoll blocking api in bonding driver to be a counter
...
Diffstat (limited to 'drivers/net/sfc/efx.c')
-rw-r--r-- | drivers/net/sfc/efx.c | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 05df20e..fb83cdd 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -197,7 +197,9 @@ MODULE_PARM_DESC(debug, "Bitmapped debugging message enable value"); static void efx_remove_channels(struct efx_nic *efx); static void efx_remove_port(struct efx_nic *efx); +static void efx_init_napi(struct efx_nic *efx); static void efx_fini_napi(struct efx_nic *efx); +static void efx_fini_napi_channel(struct efx_channel *channel); static void efx_fini_struct(struct efx_nic *efx); static void efx_start_all(struct efx_nic *efx); static void efx_stop_all(struct efx_nic *efx); @@ -335,8 +337,10 @@ void efx_process_channel_now(struct efx_channel *channel) /* Disable interrupts and wait for ISRs to complete */ efx_nic_disable_interrupts(efx); - if (efx->legacy_irq) + if (efx->legacy_irq) { synchronize_irq(efx->legacy_irq); + efx->legacy_irq_enabled = false; + } if (channel->irq) synchronize_irq(channel->irq); @@ -351,6 +355,8 @@ void efx_process_channel_now(struct efx_channel *channel) efx_channel_processed(channel); napi_enable(&channel->napi_str); + if (efx->legacy_irq) + efx->legacy_irq_enabled = true; efx_nic_enable_interrupts(efx); } @@ -426,6 +432,7 @@ efx_alloc_channel(struct efx_nic *efx, int i, struct efx_channel *old_channel) *channel = *old_channel; + channel->napi_dev = NULL; memset(&channel->eventq, 0, sizeof(channel->eventq)); rx_queue = &channel->rx_queue; @@ -736,9 +743,13 @@ efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries) if (rc) goto rollback; + efx_init_napi(efx); + /* Destroy old channels */ - for (i = 0; i < efx->n_channels; i++) + for (i = 0; i < efx->n_channels; i++) { + efx_fini_napi_channel(other_channel[i]); efx_remove_channel(other_channel[i]); + } out: /* Free unused channel structures */ for (i = 0; i < efx->n_channels; i++) @@ -1400,6 +1411,8 @@ static void efx_start_all(struct efx_nic *efx) efx_start_channel(channel); } + if (efx->legacy_irq) + efx->legacy_irq_enabled = true; efx_nic_enable_interrupts(efx); /* Switch to event based MCDI completions after enabling interrupts. @@ -1460,8 +1473,10 @@ static void efx_stop_all(struct efx_nic *efx) /* Disable interrupts and wait for ISR to complete */ efx_nic_disable_interrupts(efx); - if (efx->legacy_irq) + if (efx->legacy_irq) { synchronize_irq(efx->legacy_irq); + efx->legacy_irq_enabled = false; + } efx_for_each_channel(channel, efx) { if (channel->irq) synchronize_irq(channel->irq); @@ -1593,7 +1608,7 @@ static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd) * **************************************************************************/ -static int efx_init_napi(struct efx_nic *efx) +static void efx_init_napi(struct efx_nic *efx) { struct efx_channel *channel; @@ -1602,18 +1617,21 @@ static int efx_init_napi(struct efx_nic *efx) netif_napi_add(channel->napi_dev, &channel->napi_str, efx_poll, napi_weight); } - return 0; +} + +static void efx_fini_napi_channel(struct efx_channel *channel) +{ + if (channel->napi_dev) + netif_napi_del(&channel->napi_str); + channel->napi_dev = NULL; } static void efx_fini_napi(struct efx_nic *efx) { struct efx_channel *channel; - efx_for_each_channel(channel, efx) { - if (channel->napi_dev) - netif_napi_del(&channel->napi_str); - channel->napi_dev = NULL; - } + efx_for_each_channel(channel, efx) + efx_fini_napi_channel(channel); } /************************************************************************** @@ -2335,9 +2353,7 @@ static int efx_pci_probe_main(struct efx_nic *efx) if (rc) goto fail1; - rc = efx_init_napi(efx); - if (rc) - goto fail2; + efx_init_napi(efx); rc = efx->type->init(efx); if (rc) { @@ -2368,7 +2384,6 @@ static int efx_pci_probe_main(struct efx_nic *efx) efx->type->fini(efx); fail3: efx_fini_napi(efx); - fail2: efx_remove_all(efx); fail1: return rc; |