linux-toradex.git/drivers/net/ethernet/sfc/ptp.c, branch v3.12

sfc: Update copyright banners

2013-08-29T22:34:51+00:00

Update the dates for files that have been added to in 2012-2013.
Drop the 'Solarstorm' brand name that's still lingering here.

Signed-off-by: Ben Hutchings

sfc: Add a function pointer to abstract write of host time into NIC shared memory

2013-08-27T21:27:02+00:00

Signed-off-by: Ben Hutchings

sfc: PTP MCDI requests need to initialise periph ID field

2013-08-27T21:26:15+00:00

This field is ignored by Siena firmware but is significant to EF10 firmware.

Signed-off-by: Ben Hutchings

sfc: Add support for MCDI v2

2013-08-21T19:20:38+00:00

MCDI v2 adds a second header dword with wider command and length
fields.  It also defines extra error codes.

Change the fallback error number for unknown MCDI error codes from EIO
to EPROTO.  EIO is treated as indicating the MCDI transport has failed
and we need to reset the function, which is rather drastic.

v2 error codes and lengths don't fit into completion events, so for a
v2-capable transport, always read the response header rather then
using the event fields.

Signed-off-by: Ben Hutchings

sfc: Rename Falcon-architecture register definitions

2013-08-21T18:44:20+00:00

The EF10 architecture has a very different register layout from
previous controllers, so we'll use separate files for the two sets of
register definitions.  Use 'farch' as an abbreviation for
Falcon-architecture.

Signed-off-by: Ben Hutchings

sfc: Add GFP flags to efx_nic_alloc_buffer() and make most callers allow blocking

2013-08-21T18:43:47+00:00

Most call sites for efx_nic_alloc_buffer() are part of the probe or
reconfiguration paths and can allocate with GFP_KERNEL.  A few others
should use GFP_NOIO (I think).  Only one is in atomic context and
must use the current GFP_ATOMIC.

Signed-off-by: Ben Hutchings

sfc: Add and use MCDI_SET_QWORD() and MCDI_SET_ARRAY_QWORD()

2013-08-21T15:35:28+00:00

No need to keep open-coding the assignment of high and low dwords.

Signed-off-by: Ben Hutchings

sfc: Ensure MCDI buffers, but not lengths, are dword aligned

2013-08-21T15:35:27+00:00

We currently require that MCDI request and response lengths are
multiples of 4 bytes, because we will copy dwords in and out of shared
memory and we want to be sure we won't read or write out of bounds.
But all we really need to know is that there is sufficient padding for
that.  Also, we should ensure that buffers are dword-aligned, as on
some architectures misaligned access will result in data corruption or
a crash.

Change the buffer type to array-of-efx_dword_t and remove the
requirement that the lengths are multiples of 4.

Signed-off-by: Ben Hutchings

sfc: Use proper macros to declare and access MCDI arrays

2013-08-21T15:35:26+00:00

A few functions are using heap buffers; change them to use stack
buffers as we really don't need to resort to the heap for a 252
byte buffer in process context.

MC_CMD_MEMCPY is quite weird in that it can use inline data placed in
the request buffer after the array of records.  Thus there are two
variable-length arrays and we can't use the normal accessors for
the second.  So we have to use _MCDI_PTR() in efx_sriov_memcpy().

Signed-off-by: Ben Hutchings

sfc: Introduce and use MCDI_DECLARE_BUF macro

2013-08-21T15:35:21+00:00

MCDI_DECLARE_BUF declares a variable as an MCDI buffer of the
requested length, adding any necessary padding.

Signed-off-by: Ben Hutchings