linux-toradex.git/drivers/net/cxgb3, branch v2.6.30-rc8

cxgb3: link fault fixes

2009-05-29T08:54:41+00:00

Do not call t3_link_fault() under spinlock, as it calls msleep().
Besides, only the access to pi->link_fault needs to be serialized.

Also initialize local variables before checking the link status,
link state fields might otherwise end up containing garbage.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

cxgb3: fix dma mapping regression

2009-05-29T08:54:37+00:00

Commit 5e68b772e6efd189d6aca76f6872fb75d51ace60
  cxgb3: map entire Rx page, feed map+offset to Rx ring.

introduced a regression on platforms defining DECLARE_PCI_UNMAP_ADDR()
and related macros as no-ops.

Rx descriptors are fed with the a page buffer bus address + page chunk offset.
The page buffer bus address is set and retrieved through
pci_unamp_addr_set(), pci_unmap_addr().
These functions being meaningless on x86 (if CONFIG_DMA_API_DEBUG is not set).
The HW ends up with a bogus bus address.

This patch saves the page buffer bus address for all plaftorms.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’

2009-05-01T16:15:09+00:00

Trivial: fixing gcc 4.4 compiler warning:
drivers/net/cxgb3/t3_hw.c: In function ‘t3_prep_adapter’:
drivers/net/cxgb3/t3_hw.c:3782: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’

Signed-off-by: Sergey Senozhatsky 
Signed-off-by: David S. Miller

cxgb3: Fix EEH final recovery attempt

2009-04-20T09:07:27+00:00

EEH attempts to recover up 6 times.
The last attempt leaves all the ports and adapter down.hen
The driver is then unloaded, bringing the adapter down again
unconditionally. The unload will hang.
Check if the adapter is already down before trying to bring it down again.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

cxgb3: Fix potential msi-x vector leak

2009-04-20T09:07:25+00:00

Release vectors when a MSI-X allocation fails.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

cxgb3: fix workqueue flush issues

2009-04-20T09:07:24+00:00

The fatal error task can be scheduled while processing an offload packet
in NAPI context when the connection handle is bogus. this can race
with the ports being brought down and the cxgb3 workqueue being flushed.
Stop napi processing before flushing the work queue.

The ULP drivers (iSCSI, iWARP) might also schedule a task on keventd_wk
while releasing a connection handle (cxgb3_offload.c::cxgb3_queue_tid_release()).
The driver however does not flush any work on keventd_wq while being unloaded.
This patch also fixes this.

Also call cancel_delayed_work_sync in place of the the deprecated
cancel_rearming_delayed_workqueue.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

cxgb3: fix link fault handling

2009-04-20T09:07:23+00:00

Use the existing periodic task to handle link faults.
The link fault interrupt handler is also called in work queue context,
which is wrong and might cause potential deadlocks.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller

dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

2009-04-07T15:31:11+00:00

Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

2009-04-07T15:31:10+00:00

Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cxgb3: map entire Rx page, feed map+offset to Rx ring.

2009-03-27T07:46:59+00:00

DMA mapping can be expensive in the presence of iommus.
Reduce the Rx iommu activity by mapping an entire page, and provide the H/W
the mapped address + offset of the current page chunk.
Reserve bits at the end of the page to track mapping references, so the page
can be unmapped.

Signed-off-by: Divy Le Ray 
Signed-off-by: David S. Miller