Commit Graph

20289 Commits

Author SHA1 Message Date
Dimitris Michailidis
f1a051b930 cxgb4: report the PCIe link speed
Report the PCIe link speed (2.5 or 5 Gbps).

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:16 -07:00
Dimitris Michailidis
f8f5aafa96 cxgb4: configure HW VLAN extraction through FW
HW VLAN extraction needs to be configured through FW to work correctly in
virtualization environments.  Remove the direct register manipulation and
rely on FW.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:15 -07:00
Bruce Allan
10df0b9116 e1000e: add PCI device id to enable support for 82567V-4
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:15 -07:00
Bruce Allan
e98cac447c e1000e: Fix/cleanup PHY reset code for ICHx/PCHx
i) Fixes a bug where e1000_sw_lcd_config_ich8lan() was calling
e1000_lan_init_done_ich8lan() to poll the STATUS.LAN_INIT_DONE bit to
make sure the MAC had completed the PHY configuration.  However,
e1000_lan_init_done_ich8lan() had already been called in one of the two
places where PHY reset occurs for ICHx/PCHx parts, which caused the second
call to busy-wait for 150 msec because the LAN_INIT_DONE bit had already
been checked and cleared.

ii) Cleanup the two separate PHY reset code paths, i.e. the full-chip reset
in e1000_reset_hw_ich8lan() and the PHY-only reset in
e1000_phy_hw_reset_ich8lan().  There was duplicate code in both paths to be
performed post-reset that are now combined into one new function -
e1000_post_phy_reset_ich8lan().  This cleanup also included moving the
clearing of the PHY Reset Asserted bit in the STATUS register (now done for
all ICH/PCH parts) and the check for the indication from h/w that basic
configuration has completed back to where it previously was in
e1000_get_cfg_done_ich8lan().

iii) Corrected a few comments

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:14 -07:00
Bruce Allan
a305595b12 e1000e: move settting of flow control refresh timer to link setup code
The flow control refresh timer value needs to be saved off so that it can
be programmed into the approrpiate register when applicable but without a
reset, e.g. when changing flow control parameters via ethtool.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:13 -07:00
Bruce Allan
a65a4a0d51 e1000e: fix checks for manageability enabled and management pass-through
The mac->arc_subsystem was being incorrectly used to flag whether or not
manageability was enabled when it should only be used to state whether the
ARC (Host interface) subsystem is available on a particular MAC _and_ only
valid when any manageability is enabled. The ARC subsystem is currently
only available on 80003es2lan and 82573 parts supported by the driver.

A new flag, has_fwsm, is introduced to be used when checking if
manageability is enabled but only on parts that acutally have an FWSM
register. While the above parts have an FWSM register, there are other
parts that have FWSM but do not have support for the ARC subsystem,
namely 82571/2 and ICHx/PCH.

And then there are parts that have manageability, but do not have either
FWSM register or support for the ARC subsystem - these are 82574 and 82583.

For 80003es2lan, 82571/2/3 and ICH/PCH parts, this patch makes no
functional changes, it only corrects the usage of the manageability flags.
For 82574 and 82583, it fixes the incorrect accesses of the non-existent
FWSM register and ARC subsystem as well as corrects the check for
management pass-through.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:13 -07:00
Bruce Allan
eab50ffb22 e1000e: Incorrect function pointer set for force_speed_duplex on 82577
The force_speed_duplex function pointer was incorrectly set.  Instead of
calling the 82577-specific version it was calling the m88 version which,
among other incorrect things, reset the PHY causing autonegotiation to be
re-enabled in the PHY resulting in the link defaulting to half-duplex.
The 82577-specific force_speed_duplex function also had an issue where
it disabled Auto-MDI-X which caused the link to not come up.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:12 -07:00
Bruce Allan
8b802a7e94 e1000e: Cleanup e1000_sw_lcd_config_ich8lan()
After every reset all ICH/PCH parts call this function which acquires the
swflag, performs a workaround on applicable parts and releases the swflag.
There is no reason for parts for which this workaround is not applicable
to acquire and release the swflag so the function should just return
without doing anything for these parts.  This also provides for the
indentation of most of the function contents to be shifted left cleaning up
the code.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:12 -07:00
Bruce Allan
757c530407 e1000e: Remove EN_MAC_ADDR_FILTER check from enable_mng_pass_thru check
Patch addresses issues when manageability passthrough is enabled, but the
MAC_ADDR_FILTER bit is not set in the MANC register.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:11 -07:00
Bruce Allan
9c5e209d4b e1000e: cleanup multiple common exit points
...in e1000_update_nvm_checksum_ich8lan().

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:11 -07:00
Bruce Allan
52a9b23196 e1000e: s/w initiated LSC MSI-X interrupts not generated; no transmit
In MSI-X mode when an IMPI SoL session was active (i.e. the PHY reset was
blocked), the LSC interrupt generated by s/w to start the watchdog which
started the transmitter was not getting fired by the hardware because bit
24 (the 'other' cause bit) also needed to be set.  Without an active SoL
session, the PHY was reset which caused the h/w to fire the LSC interrupt.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:10 -07:00
Bruce Allan
cd791618c2 e1000e: initialize manageability (IPMI) pass-through in 82574/82583
82574/82583 uses different registers/bits to setup manageability filters
than all other parts supported by e1000e; set them accordingly for IPMI
pass-through.  Rename the function to better reflect what it does.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:10 -07:00
Bruce Allan
11b08be830 e1000e: bad state after running ethtool diagnostics with AMT enabled
When running ethtool online diagnostics with no open interface, there is a
short period of time where the driver relinquishes control of the adapter
during which time AMT (manageability firmware) can put the adapter into an
unknown state resulting in such things as link test failure, hardware hang,
reporting an incorrect link speed, etc.  Resetting the adapter during an
open() resolves this by putting the adapter into a quiescent state.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:09 -07:00
Bruce Allan
4fe4491fc5 e1000e: use static params to save stack space (part 2)
A couple stack cleanups missed in an earlier patch from Jesse.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:31:09 -07:00
Amit Kumar Salecha
0b9715e64f netxen: handle queue manager access
Check the access by tools for hardware queue engine and handle it
separately than other block registers, otherwise incorrect data
is returned.

Support for only NX3031 based cards.

Acked-by: Dhananjay Phadke <dhananjay.phadke@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:02:31 -07:00
Sucheta Chakraborty
14e2cfbb79 netxen: to fix onchip memory access.
Remove unnecessary remap of the region in bar 0 to access onhip memory
for NX3031.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:02:30 -07:00
Sucheta Chakraborty
215387a4b5 netxen: remove unnecessary size checks
NX3031 have 64bit on card memory. Fix the limit check to
64MB and remove unnecessary 128bit read/write check.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:02:30 -07:00
Amit Kumar Salecha
f8e21f8fe2 netxen: fix register usage
o For NX3031, MSI_MODE, CAPABILITIES_FW and SCRATCHPAD registers
  are obsolete. These register addresses can be used for different
  purpose.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12 23:02:29 -07:00
Gertjan van Wingerde
fd76f148eb rt2x00: In debugfs frame dumping allow the TX descriptor to be part of the skb.
Preparation for futher cleanups in the area of properly maintaining the skb
data without fiddling with the skb->data pointer.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:50:52 -04:00
Gertjan van Wingerde
185e5f77f8 rt2x00: Dump beacons under a different identifier than TX frames.
This allows for specific identification of beacons in the debugfs
frame stream.
Preparation for later differences between dumped TX frames and dumped
beacons.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:50:43 -04:00
Gertjan van Wingerde
85b7a8b387 rt2x00: Simplify TXD handling of beacons.
The handling of tx descriptors for beacons can be simplified by updating
write_tx_desc implementations of each driver to write directly to the
queue entry descriptor instead of to a provided memory area.
This is also a preparation for further clean ups where descriptors are
properly reserved in the skb instead of fiddling with the skb data
pointer.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:41:44 -04:00
Gertjan van Wingerde
e01f1ec35f rt2x00: Re-order tx descriptor writing code in drivers.
Where possible, write the tx descriptor words from start to end, to
follow a logical ordering of words.
Where this is not possible (in rt2400pci, rt2500pci and rt61pci) add
a comment as to why word 0 needs to be written last.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:41:44 -04:00
Gertjan van Wingerde
6b97cb04f2 rt2x00: Fix beacon descriptor writing for rt61pci.
The buffer address descriptor word is not part of the TXINFO structure
needed for beacons. The current writing of that word for beacons is
therefore an out-of-bounds write.
Fix this by only writing the buffer address descriptor word for TX
queues.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:41:43 -04:00
Gertjan van Wingerde
878f7045d8 rt2x00: Consistently name skb frame descriptor skbdesc.
The skb frame descriptor is called everywhere skbdesc, except in one
place in rt2x00debug_dump_frame. Change that occurence to have
consistent naming.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:41:43 -04:00
Steve Tanner
2cb1ba1537 ar9170usb: add vendor and device ID for Qwest/Actiontec 802AIN Wireless N USB Network Adapter
* add support for the Qwest/Actiontec 802AIN Wireless N USB Network Adapter.

lsusb identifies the device as: "ID 1668:1200 Actiontec Electronics, Inc. [hex]"

usb_modeswitch package and appropriate rules are required to switch
the device from "ID 0ace:20ff ZyDas"

Changes-licensed-under: GPL
Signed-off-by: Steve Tanner <steve.tanner@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:41:43 -04:00
Julia Lawall
aca8c6fa46 drivers/net/wireless/hostap: Drop memory allocation cast
Drop cast on the result of kmalloc and similar functions.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
@@

- (T *)
  (\(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
   kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...))
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:07 -04:00
Felix Fietkau
ffdc4cbe5b ath9k_hw: clean up EEPROM endian handling on AR9003
Remove the double swapping of the descriptor data structure, instead
keep it little-endian (native format of the eeprom data), and byteswap
on access.
This allows sparse to verify endian access to the eeprom struct.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:07 -04:00
Felix Fietkau
9bff0bc401 ath9k: add debugfs files for reading/writing registers
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:07 -04:00
Felix Fietkau
1534069491 ath9k: add debugfs files for reading/writing the rx and tx chainmask
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:06 -04:00
Felix Fietkau
c8a72c00c6 ath9k: use debugfs_remove_recursive() instead of keeping pointers to all entries
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:06 -04:00
Sujith.Manoharan@atheros.com
8116daf214 ath9k_htc: Fix array overflow
Use ENDPOINT_MAX instead of HST_ENDPOINT_MAX.
This fixes a stack corruption issue.

This is based on a patch sent by Dan Carpenter <error27@gmail.com>.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:06 -04:00
Sujith.Manoharan@atheros.com
d8c49ffb2e ath9k_htc: Fix target ready race condition
The ready message from the target could be processed
before the host HW init has completed. In this case,
htc_process_target_rdy() would assume the target has timed
out, when it hasn't. Fix this by checking if the target
has sent the ready message properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:06 -04:00
Sujith.Manoharan@atheros.com
47fce026d5 ath9k_htc: Reorder HTC initialization
The HTC state has to be setup before initializing
the target because the ready message could possibly
come before the control endpoints in HTC have been
identified.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:06 -04:00
Sujith.Manoharan@atheros.com
1d8af8cacc ath9k_htc: Allocate URBs properly
The URBs have to be allocated before uploading
the firmware to the target. This is needed to process
the target ready message properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:05 -04:00
Sujith.Manoharan@atheros.com
05a30f9cf2 ath9k_htc: Lock sta_notify() callback
Since ->sta_notify() can sleep, protect
the callback with a mutex.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:05 -04:00
David S. Miller
278554bd65 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/net/wireless/ath/ar9170/usb.c
	drivers/scsi/iscsi_tcp.c
	net/ipv4/ipmr.c
2010-05-12 00:05:35 -07:00
Inaky Perez-Gonzalez
0fb0a4f00a wimax/i2400m: driver defaults to firmware v1.5 for i6x60 devices
Firmware is available in the linux-firmware package.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
2010-05-11 15:00:49 -07:00
Inaky Perez-Gonzalez
6c6706b330 wimax/i2400m: driver defaults to firmware v1.5 for i5x50 devices
Updates the i2400m driver to default to firmware versions v1.5 for the
Intel Wireless WiMAX Connection 5150 and 5350 devices.

Firmware available in linux-firmware.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
2010-05-11 15:00:42 -07:00
Prasanna S Panchamukhi
9d7fdf1ba9 wimax/i2400m: Move module params to other file so they can be static
This patch moves the module parameters to the file where they
can be avoided to be global and allow them to be static.

The module param : idle_mode_disabled and power_save_disabled
are moved from  driver.c to control.c. Also these module parameters
are declared to be static as they are not required to be global anymore.
The module param : rx_reorder_disabled is moved from driver.c file to
rx.c file. Also this parameter is declated as static as it is not
required to be global anymore.

Signed-off-by: Prasanna S Panchamukhi<prasannax.s.panchamukhi@intel.com>
2010-05-11 14:10:24 -07:00
Dan Carpenter
3e02a06ae3 wimax: wimax_msg_alloc() returns ERR_PTR not null
wimax_msg_alloc() returns an ERR_PTR and not null.  I changed it to test
for ERR_PTR instead of null.  I also added a check in front of the
kfree() because kfree() can handle null but not ERR_PTR.

Signed-off-by: Dan Carpenter <error27@gmail.com>
2010-05-11 14:09:19 -07:00
Prasanna S. Panchamukhi
7ef9f9a4ee wimax/i2400m: USB specific TX queue's minimum buffer room required for new message
This patch specifies the TX queue's buffer room required by the
USB bus driver while allocating header space for a new message.
Please refer the documentation in the code.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:09:04 -07:00
Prasanna S. Panchamukhi
8a3a1b65ee wimax/i2400m: SDIO specific TX queue's minimum buffer room for new message
This patch specifies the TX queue's minimum buffer room required to
accommodate one smallest SDIO payload.
Please refer the documentation in the code.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:08:58 -07:00
Prasanna S. Panchamukhi
2750290886 wimax/i2400m: reserve additional space in the TX queue's buffer while allocating space for a new message header
Increase the possibilities of including at least one payload by reserving
some additional space in the TX queue while allocating TX queue's space
for new message header. Please refer the documentation in the code for details.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:08:50 -07:00
Prasanna S. Panchamukhi
0809a7bbe8 wimax/i2400m: fix incorrect handling of type 2 and 3 RX messages
According to Intel Wimax i3200, i5x50 and i6x60 device specification documents,
the host driver must not reset the device if the normalized sequence numbers
are greater than 1023 for type 2 and type 3 RX messages.
This patch removes the code that incorrectly used to reset the device.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:08:43 -07:00
Prasanna S. Panchamukhi
d11a6e4495 wimax i2400m: fix race condition while accessing rx_roq by using kref count
This patch fixes the race condition when one thread tries to destroy
the memory allocated for rx_roq, while another thread still happen
to access rx_roq.
Such a race condition occurs when i2400m-sdio kernel module gets
unloaded, destroying the memory allocated for rx_roq while rx_roq
is accessed by i2400m_rx_edata(), as explained below:
$thread1                                $thread2
$ void i2400m_rx_edata()                $
$Access rx_roq[]                        $
$roq = &i2400m->rx_roq[ro_cin]          $
$ i2400m_roq_[reset/queue/update_ws]    $
$                                       $ void i2400m_rx_release();
$                                       $kfree(rx->roq);
$                                       $rx->roq = NULL;
$Oops! rx_roq is NULL

This patch fixes the race condition using refcount approach.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:08:23 -07:00
Prasanna S. Panchamukhi
ded0fd62a8 wimax/i2400m: increase tx queue length from 5 to 20 [v1]
This patch increases the tx_queue_len to 20 so as to
minimize the jitter in the throughput.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:08:12 -07:00
Prasanna S. Panchamukhi
85a19e07e3 wimax/i2400m: fix system freeze caused by an infinite loop [v1]
This patch fixes an infinite loop caused by i2400m_tx_fifo_push() due
to a corner case where there is no tail space in the TX FIFO.
Please refer the documentation in the code for details.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:06:36 -07:00
Prasanna S. Panchamukhi
9e6e3bd52b wimax/i2400m: modify i2400m_tx_fifo_push() to check for head room space in the TX FIFO [v1]
This fixes i2400m_tx_fifo_push(); the check for having enough
space in the TX FIFO's tail was obscure and broken in certain
corner cases. The new check works in all cases and is way
clearer. Please refer the documentation in the code for details.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:06:29 -07:00
Prasanna S. Panchamukhi
718e94907d wimax/i2400m: fix BUILD_BUG_ON() to use the maximum message size constant [v1]
The older method of computing the maximum PDU size relied
on a method that doesn't work when we prop the maximum
number of payloads up to the physical limit, and thus we kill
the whole computation and just verify that the constants are
congruent.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:06:20 -07:00
Prasanna S. Panchamukhi
a40242f2cd wimax/i2400m: limit the message size upto 16KiB [v1]
According to Intel Wimax i3200, i5x50 and i6x50 specification
documents, the maximum size of each TX message can be upto 16KiB.
This patch modifies the i2400m_tx() routine to check that the
message size does not exceed the 16KiB limit.
Please refer the documentation in the code for details.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
2010-05-11 14:06:12 -07:00