Commit Graph

947 Commits

Author SHA1 Message Date
Enrico Mioso
9fea037de5 net: cdc_ncm: remove non-standard NCM device IDs
Remove device IDs of NCM-like (but not NCM-conformant) devices, that are
handled by the huawwei_cdc_ncm driver now.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-05 15:21:26 -05:00
Enrico Mioso
41c47d8cfd net: huawei_cdc_ncm: Introduce the huawei_cdc_ncm driver
This driver supports devices using the NCM protocol as an encapsulation layer
for other protocols, like the E3131 Huawei 3G modem. This drivers approach was
heavily inspired by the qmi_wwan/cdc_mbim approach & code model.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-05 15:21:25 -05:00
Enrico Mioso
2f69702c4d net: cdc_ncm: Export cdc_ncm_{tx, rx}_fixup functions for re-use
Some drivers implementing NCM-like protocols, may re-use those functions, as is
the case in the huawei_cdc_ncm driver.
Export them via EXPORT_SYMBOL_GPL, in accordance with how other functions have
been exported.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-05 15:21:25 -05:00
Bjørn Mork
e62416e8e4 net: cdc_mbim: fixup error return value
Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 15:40:16 -05:00
Bjørn Mork
c37ac9b22b net: cdc_mbim: no need to check for resume if suspend exists
Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 15:40:16 -05:00
Bjørn Mork
a298807b8d net: qmi_wwan: no need to check for resume if suspend exists
Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 15:40:16 -05:00
Bjørn Mork
79d9b62ad8 net: qmi_wwan: manage_power should always set needs_remote_wakeup
Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 15:40:16 -05:00
Bjørn Mork
04d948a9fc net: cdc_mbim: manage_power should always set needs_remote_wakeup
Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 15:40:16 -05:00
David S. Miller
394efd19d5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/emulex/benet/be.h
	drivers/net/netconsole.c
	net/bridge/br_private.h

Three mostly trivial conflicts.

The net/bridge/br_private.h conflict was a function signature (argument
addition) change overlapping with the extern removals from Joe Perches.

In drivers/net/netconsole.c we had one change adjusting a printk message
whilst another changed "printk(KERN_INFO" into "pr_info(".

Lastly, the emulex change was a new inline function addition overlapping
with Joe Perches's extern removals.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-04 13:48:30 -05:00
Bjørn Mork
a6fe67087d net: cdc_ncm: no not set tx_max higher than the device supports
There are MBIM devices out there reporting

  dwNtbInMaxSize=2048 dwNtbOutMaxSize=2048

and since the spec require a datagram max size of at least
2048, this means that a full sized datagram will never fit.

Still, sending larger NTBs than the device supports is not
going to help.  We do not have any other options than either
 a) refusing to bindi, or
 b) respect the insanely low value.

Alternative b will at least make these devices work, so go
for it.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:05 -04:00
Bjørn Mork
296e81f84c net: cdc_ncm: improve bind error debug messages
Make it a bit easier for users to figure out what goes
wrong when bind fails.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
59ede3168a net: cdc_ncm: return proper error if setup fails
Most setup errors are ignored to ensure maximum firmware
compatibilty.  But GET_NTB_PARAMETERS and the functional
descriptors are required.  Use proper error codes and
log level if these fail.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
47175e5f28 net: cdc_ncm: refactoring cdc_ncm_setup
Rewriting the "set max datagram" part of dc_ncm_setup to
separate the selection and validatation of the size from
the code which optionally informs the device of this
value.  This ensures that we use the correct value
regardless of device support for the get and set commands.

Removing some of the many indent levels while doing this
to make the code more readable.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
986e10d671 net: cdc_ncm: endian convert constants instead of variables
Converting the constants used in these comparisons at build
time instead of converting the variables for every received
frame at run time.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
5448d75f71 net: cdc_ncm: log signatures in hex
These signatures are well known bit patterns, mostly made up
of ascii characters.  Mentally parsing works best if they
are printed in hex.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
ae223cd406 net: cdc_ncm: use netif_* and dev_* instead of pr_*
Take advantage of standard device name prefixing and
netdevice msglvl control where possible.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:04 -04:00
Bjørn Mork
a26fd05deb net: cdc_ncm: log the length we warn about
Fix cut'n'paste typo.  Log the bogus length and not the
irrelevant signature.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
43c87f7838 net: cdc_ncm: set correct dev->hard_mtu
usbnet use the hard_mtu value for sizing the tx queue and nothing
else.  We will be transmitting buffers of up to tx_max size, so
that's the proper value to give usbnet.

The individual datagram size is completely irrelevant here.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
0e2c4a0054 net: cdc_ncm: remove ethtool ops
No need to keep this code duplicated from usbnet.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
085e50e1fe net: cdc_ncm: remove probe and disconnect wrappers
These functions were merely wrappers around the usbnet
variants.  Remove them.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
4d619f625a net: cdc_ncm: no point in filling up the NTBs if we send ZLPs
Padding NTBs to max size is part of the support for devices
optimizing their DMA transfers. This optimization depends on
max sized NTBs not being ZLP terminated. So we are much better
off dropping the padding if we are going to send a ZLP anyway.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
9fe0234c0b net: cdc_ncm: only the control intf can be probed
The probed interface must be the master/control interface of the
function.  Make this explicit and simplify redundant tests.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:03 -04:00
Bjørn Mork
832922362e net: cdc_ncm: remove descriptor pointers
header_desc was completely unused and union_desc was never used
outside cdc_ncm_bind_common.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:02 -04:00
Bjørn Mork
1b5287a7ab net: cdc_ncm: fix SET_MAX_DATAGRAM_SIZE
We need to inform the device about the *new* value, not the
old one.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:02 -04:00
Bjørn Mork
6a9612e2cb net: cdc_ncm: remove ncm_parm field
Moving the call to cdc_ncm_setup() after the endpoint
setup removes the last remaining reference to ncm_parm
outside cdc_ncm_setup.

Collecting all the ncm_parm based calculations in
cdc_ncm_setup improves readability.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-02 02:02:02 -04:00