Commit Graph

35649 Commits

Author SHA1 Message Date
Hante Meuleman 70398a5929 brcmfmac: use wait_event_timeout for fw control packets over usb.
firmware control packets over usb are async acked. This is
awaited for by using interruptible wait. This can be
interrupted by signal which results in undesirable behavior.
Instead wait_event_timeout is used.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:07 -04:00
Larry Finger 2d838bb608 b43legacy: Fix crash on unload when firmware not available
When b43legacy is loaded without the firmware being available, a following
unload generates a kernel NULL pointer dereference BUG as follows:

[  214.330789] BUG: unable to handle kernel NULL pointer dereference at 0000004c
[  214.330997] IP: [<c104c395>] drain_workqueue+0x15/0x170
[  214.331179] *pde = 00000000
[  214.331311] Oops: 0000 [#1] SMP
[  214.331471] Modules linked in: b43legacy(-) ssb pcmcia mac80211 cfg80211 af_packet mperf arc4 ppdev sr_mod cdrom sg shpchp yenta_socket pcmcia_rsrc pci_hotplug pcmcia_core battery parport_pc parport floppy container ac button edd autofs4 ohci_hcd ehci_hcd usbcore usb_common thermal processor scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua scsi_dh fan thermal_sys hwmon ata_generic pata_ali libata [last unloaded: cfg80211]
[  214.333421] Pid: 3639, comm: modprobe Not tainted 3.6.0-rc6-wl+ #163 Source Technology VIC 9921/ALI Based Notebook
[  214.333580] EIP: 0060:[<c104c395>] EFLAGS: 00010246 CPU: 0
[  214.333687] EIP is at drain_workqueue+0x15/0x170
[  214.333788] EAX: c162ac40 EBX: cdfb8360 ECX: 0000002a EDX: 00002a2a
[  214.333890] ESI: 00000000 EDI: 00000000 EBP: cd767e7c ESP: cd767e5c
[  214.333957]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  214.333957] CR0: 8005003b CR2: 0000004c CR3: 0c96a000 CR4: 00000090
[  214.333957] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[  214.333957] DR6: ffff0ff0 DR7: 00000400
[  214.333957] Process modprobe (pid: 3639, ti=cd766000 task=cf802e90 task.ti=cd766000)
[  214.333957] Stack:
[  214.333957]  00000292 cd767e74 c12c5e09 00000296 00000296 cdfb8360 cdfb9220 00000000
[  214.333957]  cd767e90 c104c4fd cdfb8360 cdfb9220 cd682800 cd767ea4 d0c10184 cd682800
[  214.333957]  cd767ea4 cba31064 cd767eb8 d0867908 cba31064 d087e09c cd96f034 cd767ec4
[  214.333957] Call Trace:
[  214.333957]  [<c12c5e09>] ? skb_dequeue+0x49/0x60
[  214.333957]  [<c104c4fd>] destroy_workqueue+0xd/0x150
[  214.333957]  [<d0c10184>] ieee80211_unregister_hw+0xc4/0x100 [mac80211]
[  214.333957]  [<d0867908>] b43legacy_remove+0x78/0x80 [b43legacy]
[  214.333957]  [<d083654d>] ssb_device_remove+0x1d/0x30 [ssb]
[  214.333957]  [<c126f15a>] __device_release_driver+0x5a/0xb0
[  214.333957]  [<c126fb07>] driver_detach+0x87/0x90
[  214.333957]  [<c126ef4c>] bus_remove_driver+0x6c/0xe0
[  214.333957]  [<c1270120>] driver_unregister+0x40/0x70
[  214.333957]  [<d083686b>] ssb_driver_unregister+0xb/0x10 [ssb]
[  214.333957]  [<d087c488>] b43legacy_exit+0xd/0xf [b43legacy]
[  214.333957]  [<c1089dde>] sys_delete_module+0x14e/0x2b0
[  214.333957]  [<c110a4a7>] ? vfs_write+0xf7/0x150
[  214.333957]  [<c1240050>] ? tty_write_lock+0x50/0x50
[  214.333957]  [<c110a6f8>] ? sys_write+0x38/0x70
[  214.333957]  [<c1397c55>] syscall_call+0x7/0xb
[  214.333957] Code: bc 27 00 00 00 00 a1 74 61 56 c1 55 89 e5 e8 a3 fc ff ff 5d c3 90 55 89 e5 57 56 89 c6 53 b8 40 ac 62 c1 83 ec 14 e8 bb b7 34 00 <8b> 46 4c 8d 50 01 85 c0 89 56 4c 75 03 83 0e 40 80 05 40 ac 62
[  214.333957] EIP: [<c104c395>] drain_workqueue+0x15/0x170 SS:ESP 0068:cd767e5c
[  214.333957] CR2: 000000000000004c
[  214.341110] ---[ end trace c7e90ec026d875a6 ]---Index: wireless-testing/drivers/net/wireless/b43legacy/main.c

The problem is fixed by making certain that the ucode pointer is not NULL
before deregistering the driver in mac80211.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>   [v 3.3.0+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:07 -04:00
Bala Shanmugam 6a73f507cf ath9k: Enable MCI for AR9565
Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:07 -04:00
Dan Carpenter 58901d181f brcmfmac: use kcalloc() to prevent integer overflow
The multiplication here looks like it could overflow.  I've changed it
to use kcalloc() to prevent that.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:06 -04:00
Sujith Manoharan 365d2ebcab ath9k: Fix chainmask selection for AR9462
Force chain 1 to be used for CCK rates since the target power
table stored in EEPROM is too high to transmit with both chains.
This is needed to avoid regulatory violation.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:06 -04:00
Kevin Gan 8b4509f642 mwifiex: add inactivity deauth support for ap
The firmware has support for this feature, so we offload it to
firmware. In start_ap, driver passes the inactivity timeout
value to firmware via TLVs and firmware will report STA_DEAUTH
event to driver when inactivity timer is fired.

Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:06 -04:00
Stone Piao 3215215a9e mwifiex: set txpd when send a mgmt frame for AP and GO mode
Set packet type and packet offset in txpd when send a mgmt frame
in AP and GO mode.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:06 -04:00
Stone Piao 8a6e231766 mwifiex: parse P2P IEs from beacon_data
Parse P2P IEs and set them to FW with related masks.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:06 -04:00
Stone Piao 9197ab9e5f mwifiex: add support for P2P GO in interface type change
When cfg80211 calls to change interface type for P2P GO, send
P2P mode config commands to firmware and set bss role and bss
mode accordingly.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:05 -04:00
Stone Piao e1a2b7a394 mwifiex: add support for P2P client in interface type change
When cfg80211 calls to change interface type for P2P client,
send P2P mode config commands to firmware.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:05 -04:00
Stone Piao 197f4a2ec9 mwifiex: add P2P interface
Due to firmware design, driver needs to add a default P2P interface
to implement find phase and action frame handshake.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:05 -04:00
Stone Piao 7bff9c974e mwifiex: send firmware initialization commands synchronously
The driver will send some commands to firmware during the
initialization. Currently these commands are sent asynchronously,
which means that we firstly insert all of them to a pre-allocated
command queue, and then start to process them one by one. The
command queue will soon be exhausted if we keep adding new
initialization commands.

This issue can be resolved by sending initialization commands
synchronously because each command is consumed and the buffer is
recycled before queuing next command.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:05 -04:00
Stone Piao ea021f5600 mwifiex: append each IE into a seperate IE buffer
When scan is triggered from cfg80211, the request contains some IEs
and we should parse all the IEs and append each IE into a seperate
IE buffer.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:04 -04:00
Stone Piao eab1c76bfc mwifiex: process remain on channel expired event
Process remain on channel expired event, and notify cfg80211.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:04 -04:00
Stone Piao 7feb4c4831 mwifiex: implement remain_on_channel and cancel_remain_on_channel
Add a new command to implement remain_on_channel and
cancel_remain_on_channel.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:04 -04:00
Stone Piao 2dbaf751b1 mwifiex: report received management frames to cfg80211
Process the management frames received from firmware and report
them to cfg80211.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:04 -04:00
Stone Piao 3cec68701a mwifiex: implement cfg80211 mgmt_frame_register handler
Add a new command to implement mgmt_frame_register.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:04 -04:00
Stone Piao 83719be861 mwifiex: advertise mgmt_stype to cfg80211
Advertise supported management frame types to cfg80211.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:03 -04:00
Stone Piao e39faa73ef mwifiex: implement cfg80211 mgmt_tx handler
Implement mgmt_tx in cfg80211 ops through data path.
Advertise probe resp offload and skip to send probe resp in AP
or GO mode.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:03 -04:00
Stone Piao a8aa69dca7 mwifiex: fix coding style issue
Remove unnecessary blank lines and extra tab.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:03 -04:00
Sujith Manoharan 302a3c3a38 ath9k: Add a debugfs file to adjust antenna diversity
Location: /<debugfs>/ieee80211/phy#/ath9k/diversity

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:03 -04:00
Sujith Manoharan 69c6ac60f5 ath9k: Handle errors properly in MCI initialization
The MCI initialization path has various points of failures,
handle these to ensure that we bail out correctly in such
cases.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:02 -04:00
Thomas Wagner a549459c96 ath9k: Fix rx filtering issue for older chips
We need to have the promiscuous mode enabled for older
chipsets so that the olderchips hardware does not
filters out some valid/necessary frames that need
to be sent to mac80211. Fix this by enabling promiscus
mode for all the chipsets whose macversion <= AR9160
chipsets. This should fix
https://bugzilla.kernel.org/show_bug.cgi?id=45591

shafi: made the fix generic by having the frame filtering
disabled for chipsets older than AR9280.

Cc: Javier Cardona <javier@cozybit.com>
Signed-off-by: Thomas Wagner <Thomas.Wagner@hs-rm.de>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 13:54:02 -04:00
John W. Linville c487606f83 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	net/nfc/netlink.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28 11:11:16 -04:00
Wei Yongjun df555b6653 netdev: octeon: fix return value check in octeon_mgmt_init_phy()
In case of error, the function of_phy_connect() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-28 01:18:32 -04:00
David S. Miller d9f72f359e Revert "be2net: fix vfs enumeration"
This reverts commit 51af6d7c1f.

Breaks the build with CONFIG_PCI_ATS not enabled.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 22:19:02 -04:00
Narendra K 68b3f28c11 qlcnic: Fix scheduling while atomic bug
In the device close path, 'qlcnic_fw_destroy_ctx' and
'qlcnic_poll_rsp' call msleep. But  'qlcnic_fw_destroy_ctx' and
'qlcnic_poll_rsp' are called with 'adapter->tx_clean_lock' spin lock
held resulting in scheduling while atomic bug causing the following
trace.

I observed that the commit 012dc19a45
from John Fastabend addresses a similar issue in ixgbevf driver.
Adopting the same approach used in the commit, this patch uses mdelay
to address the issue.

[79884.999115] BUG: scheduling while atomic: ip/30846/0x00000002
[79885.005562] INFO: lockdep is turned off.
[79885.009958] Modules linked in: qlcnic fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE bnep bluetooth rfkill ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables iptable_nat nf_nat iptable_mangle ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables dcdbas coretemp kvm_intel kvm iTCO_wdt ixgbe iTCO_vendor_support crc32c_intel ghash_clmulni_intel nfsd microcode sb_edac pcspkr edac_core dca bnx2x shpchp auth_rpcgss nfs_acl lpc_ich mfd_core mdio lockd libcrc32c wmi acpi_pad acpi_power_meter sunrpc uinput sd_mod sr_mod cdrom crc_t10dif ahci libahci libata megaraid_sas usb_storage dm_mirror dm_region_hash dm_log dm_mod [last unloaded: qlcnic]
[79885.083608] Pid: 30846, comm: ip Tainted: G        W  O 3.6.0-rc7+ #1
[79885.090805] Call Trace:
[79885.093569]  [<ffffffff816764d8>] __schedule_bug+0x68/0x76
[79885.099699]  [<ffffffff8168358e>] __schedule+0x99e/0xa00
[79885.105634]  [<ffffffff81683929>] schedule+0x29/0x70
[79885.111186]  [<ffffffff81680def>] schedule_timeout+0x16f/0x350
[79885.117724]  [<ffffffff811afb7a>] ? init_object+0x4a/0x90
[79885.123770]  [<ffffffff8107c190>] ? __internal_add_timer+0x140/0x140
[79885.130873]  [<ffffffff81680fee>] schedule_timeout_uninterruptible+0x1e/0x20
[79885.138773]  [<ffffffff8107e830>] msleep+0x20/0x30
[79885.144159]  [<ffffffffa04c7fbf>] qlcnic_issue_cmd+0xef/0x290 [qlcnic]
[79885.151478]  [<ffffffffa04c8265>] qlcnic_fw_cmd_destroy_rx_ctx+0x55/0x90 [qlcnic]
[79885.159868]  [<ffffffffa04c92fd>] qlcnic_fw_destroy_ctx+0x2d/0xa0 [qlcnic]
[79885.167576]  [<ffffffffa04bf2ed>] __qlcnic_down+0x11d/0x180 [qlcnic]
[79885.174708]  [<ffffffffa04bf6f8>] qlcnic_close+0x18/0x20 [qlcnic]
[79885.181547]  [<ffffffff8153b4c5>] __dev_close_many+0x95/0xe0
[79885.187899]  [<ffffffff8153b548>] __dev_close+0x38/0x50
[79885.193761]  [<ffffffff81545101>] __dev_change_flags+0xa1/0x180
[79885.200419]  [<ffffffff81545298>] dev_change_flags+0x28/0x70
[79885.206779]  [<ffffffff815531b8>] do_setlink+0x378/0xa00
[79885.212731]  [<ffffffff81354fe1>] ? nla_parse+0x31/0xe0
[79885.218612]  [<ffffffff815558ee>] rtnl_newlink+0x37e/0x560
[79885.224768]  [<ffffffff812cfa19>] ? selinux_capable+0x39/0x50
[79885.231217]  [<ffffffff812cbf98>] ? security_capable+0x18/0x20
[79885.237765]  [<ffffffff81555114>] rtnetlink_rcv_msg+0x114/0x2f0
[79885.244412]  [<ffffffff81551f87>] ? rtnl_lock+0x17/0x20
[79885.250280]  [<ffffffff81551f87>] ? rtnl_lock+0x17/0x20
[79885.256148]  [<ffffffff81555000>] ? __rtnl_unlock+0x20/0x20
[79885.262413]  [<ffffffff81570fc1>] netlink_rcv_skb+0xa1/0xb0
[79885.268661]  [<ffffffff81551fb5>] rtnetlink_rcv+0x25/0x40
[79885.274727]  [<ffffffff815708bd>] netlink_unicast+0x19d/0x220
[79885.281146]  [<ffffffff81570c45>] netlink_sendmsg+0x305/0x3f0
[79885.287595]  [<ffffffff8152b188>] ? sock_update_classid+0x148/0x2e0
[79885.294650]  [<ffffffff81525c2c>] sock_sendmsg+0xbc/0xf0
[79885.300600]  [<ffffffff8152600c>] __sys_sendmsg+0x3ac/0x3c0
[79885.306853]  [<ffffffff8109be23>] ? up_read+0x23/0x40
[79885.312510]  [<ffffffff816896cc>] ? do_page_fault+0x2bc/0x570
[79885.318968]  [<ffffffff81191854>] ? sys_brk+0x44/0x150
[79885.324715]  [<ffffffff811c458c>] ? fget_light+0x24c/0x520
[79885.330875]  [<ffffffff815286f9>] sys_sendmsg+0x49/0x90
[79885.336707]  [<ffffffff8168e429>] system_call_fastpath+0x16/0x1b

Signed-off-by: Narendra K <narendra_k@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 19:24:52 -04:00
Neil Horman 64f605c774 bnx2: Clean up remaining iounmap
commit c0357e975a modified bnx2 to switch from
using ioremap/iounmap to pci_iomap/pci_iounmap.  They missed a spot in the error
path of bnx2_init_one though.  This patch just cleans that up.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Michael Chan <mcan@broadcom.com>
CC: "David S. Miller" <davem@davemloft.net>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 19:18:50 -04:00
David S. Miller e905ed57ba bna: Fix warning false positive.
GCC can't see that in all non-error-return paths we do in fact
set *using_dac to something.

Add an explicit initialization to remove this warning:

drivers/net/ethernet/brocade/bna/bnad.c: In function ‘bnad_pci_probe’:
drivers/net/ethernet/brocade/bna/bnad.c:3079:5: warning: ‘using_dac’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/net/ethernet/brocade/bna/bnad.c:3233:7: note: ‘using_dac’ was declared here

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 18:31:58 -04:00
Marek Vasut b629820d18 net: phy: smsc: Implement PHY config_init for LAN87xx
The LAN8710/LAN8720 chips do have broken the "FlexPWR" smart power-saving
capability. Enabling it leads to the PHY not being able to detect Link when
cold-started without cable connected. Thus, make sure this is disabled.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Christian Hohnstaedt <chohnstaedt@innominate.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 18:28:30 -04:00
Ivan Vecera 51af6d7c1f be2net: fix vfs enumeration
Current VFs enumeration algorithm used in be_find_vfs does not take domain
number into the match. The match found in igb/ixgbe is more elegant and
safe.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 18:14:15 -04:00
Steve Glendinning a3cff128c9 smsc75xx: fix resume after device reset
On some systems this device fails to properly resume after suspend,
this patch fixes it by running the usbnet_resume handler.

I suspect this also fixes this bug:

http://code.google.com/p/chromium-os/issues/detail?id=31871

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:59:30 -04:00
LEROY Christophe 871d1d6b59 lxt PHY: Support for the buggy LXT973 rev A2
This patch adds proper handling of the buggy revision A2 of LXT973 phy, adding
precautions linked to ERRATA Item 4:

Revision A2 of LXT973 chip randomly returns the contents of the previous even
register when you read a odd register regularly

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:58:06 -04:00
Vipul Pandya 26f7cbc0a5 cxgb4: Don't attempt to upgrade T4 firmware when cxgb4 will end up as a slave
This patch adds a new common code routine to upgrade an adapter's
firmware.  This routine handles all of the complexities of working with the
the existing adapter firmware in order to quiesce the adapter and uP, etc.
For an automatic upgrade it will send a HELLO command to check if cxgb4
want/can upgrade firmware, i.e. if cxgb4 is MASTER and has newer firmware
that it wants to load and call the new common code routine t4_fw_upgrade.
Note that it should not issue a RESET command after a successful firmware
upgrade.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:51 -04:00
Vipul Pandya 1648a22b16 cxgb4: Inform caller if driver didn't upgrade firmware
If a card had already been initialized, on reloading cxgb4 driver firmware
required an upgrade but the upgrade did not happen. In that case a mailbox
timeout would occur during T4 configuration file stuff. The fix is to let the
caller know the firmware was not upgraded so a reset would be issued before
starting the T4 config stuff.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 13ee15d396 cxgb4: Add support for T4 hardwired driver configuration settings
In case if user defined configuration file at /lib/firmware/cxgb4/t4-config.txt
location and also factory default configuration file written to FLASH are not
present then driver will use hardwired configuration settings.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 636f9d371f cxgb4: Add support for T4 configuration file
Starting with T4 firmware version 1.3.11.0 the firmware now supports device
configuration via a Firmware Configuration File. The Firmware Configuration
File was primarily developed in order to centralize all of the configuration,
resource allocation, etc. for Unified Wire operation where multiple
Physical / Virtual Function Drivers would be using a T4 adapter simultaneously.

The Firmware Configuration file can live in three locations as shown below
in order of precedence.
1) User defined configuration file: /lib/firmware/cxgb4/t4-config.txt
2) Factory Default configuration file written to FLASH within
   the manufacturing process.
3) Hardwired driver configuration.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 52367a763d cxgb4/cxgb4vf: Code cleanup to enable T4 Configuration File support
This patch adds new enums and macros to enable T4 configuration file support. It
also removes duplicate macro definitions.

It fixes the build failure in cxgb4vf driver introduced because of old macro
definition removal.

It also performs SGE initialization based on T4 configuration file is provided
or not. If it is provided then it uses the parameters provided in it otherwise
it uses hard coded values.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 5afc8b84eb cxgb4: Add functions to read memory via PCIE memory window
This patch implements two new functions t4_mem_win_read and t4_memory_read.
These new functions can be used to read memory via the PCIE memory window.
Please note, for proper execution of these functions PCIE_MEM_ACCESS_BASE_WIN
registers must be setup correctly like how setup_memwin in the cxgb4 driver
does it.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 3eb4afbfce cxgb4: Fix incorrect values for MEMWIN*_APERTURE and MEMWIN*_BASE
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Wei Yongjun beb5ac20b3 netdev: pasemi: fix return value check in pasemi_mac_phy_init()
In case of error, the function of_phy_connect() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 13:20:50 -04:00
Wei Yongjun a326e6dd31 team: fix return value check
In case of error, the function genlmsg_put() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 13:18:19 -04:00
AnilKumar Ch c523530ce1 can: c_can: fix segfault during rmmod
This patch fixes an oops which occurs during unloading the driver.
unregister_c_can_dev() is doing c_can/d_can module interrupts disable, which
requires module clock enable. c_can/d_can interrupts enable/disable is handled
properly in c_can_start and c_can_stop, so removing from
unregister_c_can_dev().

The problem was triggered by adding runtime PM support to the c_can driver by
this commit:

4cdd34b can: c_can: Add runtime PM support to Bosch C_CAN/D_CAN controller

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-09-27 16:34:02 +02:00
Eliad Peller af390f4dd3 wlcore: protect wlcore_op_set_key with mutex
wlcore_op_set_key() calls wl18xx_set_key(),
which in turn executes some of his function
calls without acquiring wl->mutex and making
sure the fw is awake.

Adding mutex_lock()/ps_elp_wakeup() calls is
not enough, as wl18xx_set_key() calls
wl1271_tx_flush() which can't be called while
the mutex is taken.

Add the required calls to wlcore_op_set_key,
but limit the queues_stop and flushing
to the only encryption types in which
a spare block might be needed (GEM and TKIP).

[Arik - move state != ON check]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Eliad Peller ab2c4f37dc wlcore: decrease elp timeout
The current elp timeout (the same as the dynamic
ps timeout - 1500ms) is too high. Usually,
wl1271_ps_elp_sleep() get called right after tx/rx,
which is fine, but some command might get sent
even when there is no traffic (e.g. ht changes
triggered by beacon frames), and leaving the
device awake for 1500ms in this case is redundant.

Use a timeout of 30ms.
The fw won't enter elp anyway before the dynamic-ps
timeout was expired as well (and it entered ps
successfully).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv 6f8d6b20bb wlcore: Load the NVS file asynchronously
The NVS file is loaded by the device's probe callback with the help of
request_firmware(). Since request_firmware() relies on udevd, the
modules cannot be loaded before hotplug events are handled.

Fix this by loading the NVS file asynchronously and continue
initialization only after the firmware request is over.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv 3992eb2bf2 wlcore: Refactor probe
Move most of the device-specific probe functionality into setup(), a new
op. By doing this, wlcore_probe will be the first to request a firmware
from userspace, making it easier to load the NVS file asynchronously.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv d556023895 wlcore: Allow memory access when the FW crashes
When the no_recovery flag is used, the recovery work will not restart
the FW and the state will not be set to 'on'. To enable post-mortem
analysis, allow memory access in the 'restarting' state.

Also, since the FW might not be operational, don't fail the read/write
operations if elp_wakeup fails.

Reported-by: Arkady Miasnikov <a-miasnikov@ti.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Eliad Peller 001e39a8ef wlcore: use dynamic keep-alive template ids
Currently, all the (station) roles use the same
keep-alive template id (0). However, the klv
template ids shouldn't be shared by different
roles.

Implement a simple klv_templates bitmap, and let
each role allocate its own klv template id on
role initialization.

[Arik - remove invalidation of KLV template when getting into "idle".
This is already handled in unjoin]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Eliad Peller 4137c17c8c wlcore: invalidate keep-alive template on disconnection
Previously, invalidation of the keep-alive template was
done when going idle. However, while removing the
idle-handling we didn't move the keep-alive template
invalidation to another place.

This finally resulted in fw error when trying to use
the keep-alive template by another role.

(Note that we still have an error here - each role
should have its unique keep-alive template id, while
currently they all use CMD_TEMPL_KLV_IDX_NULL_DATA (0).
This only works now because we don't support concurrent
connected stations yet)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Arik Nemtsov 8c5dab1a84 wl18xx: default to siso40 in 2.4ghz with a single antenna
The driver used siso20 in this case for legacy reasons.

Reported-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Ido Yariv a8311c8a9a wlcore: Fix unbalanced interrupts enablement
The interrupt line is enabled by wl12xx_enable_interrupts and
wl18xx_enable_interrupts, but it will not be disabled in all failure
paths. Fix this.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Ido Yariv 792a58a872 wlcore: Don't recover during boot
While recursive recovery is avoided during shutdown, a new recovery may
be queued when the FW boots. The recovery work will then try to stop an
already stopped hardware, which will most likely result in a kernel
panic.

Fix this by verifying that wl->state is on before queueing a new
recovery.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Yair Shapira 1defbeb042 wlcore/wl18xx: add phy_fw_version_str to debugfs driver_state
add phy_fw_version_str to debugfs driver_state file.
information is taken during boot and stored in wl->chip.phy_fw_ver_str.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov 61932ba59f wlcore: spi: use private max-buf-size limit
Limit SPI transmissions to the wl12xx max buffer size, as only 12xx was
tested with SPI.

This allows us to remove the global aggregation buffer constant.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Yair Shapira e166de556f wl18xx: number_of_assembled_ant5 indicates if A band is enabled
Use number_of_assembled_ant5 phy param to indicate if A band is enabled:
if number_of_assembled_ant5 != 0 then it is enabled otherwise it is
disabled.

This aligns with phy implementation that uses this param both to indicate
if band is active and the number of antennas.

This parameter replaces enable_11a module param that was removed.

User-Space applications can use wlconf and/or INI files to disable A band
using this parameter.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov e7a6ba29d3 wlcore: allow up to 3 running STA interfaces in combinations
This allows us to have a p2p-management interface (in STA mode),
as we as a group dedicated interface.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller 889300fa53 wlcore: lazy-enable device roles
Enable device roles just before starting it.
This way, a single device role should be enough
for all vifs, as we can't use concurrent device
roles (which require ROC) anyway.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller 8dc574308b wlcore: always use wlvif->role_id for scans
enabled (but not-started) sta role should be good enough
for scanning (both normal and scheduled), so use it
instead of the device_role.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov fc3d1db5b6 wlcore: make debug prints work without dynamic debug
Make debug prints operational when dynamic debug is not defined.
This allows better debugging in production environments.

Change the driver prefix to "wlcore" while were at it.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov f4afbed944 wlcore/wl18xx/wl12xx: allow up to 3 mac addresses
Allow 3 native mac addresses on 18xx. On 12xx allow 2 native mac
addresses and set the LAA bit to create a third mac address. This
enabled operation with a separate group interface.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller d49524d3e8 wlcore: resume() only if sta is associated
mac80211's resume() callback might get called even if
the sta is not associated (but only up). The
resume sequence in this case results in configuring
the wake-up conditions of a non-started role, which
causes fw assertion.

Fix it by bailing out if the STA is not connected
(like we do on suspend()).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Eyal Shapira 11bc97eb90 wlcore: configure wowlan regardless of wakeup conditions
wowlan filters should be configured in any case in suspend/resume.
This shouldn't be dependent on whether wakeup conditions are the
same for suspend and resume states. Only the FW command to
reconfigure wakeup conditions should be avoided in such a case.

Reported-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Igal Chernobelsky 26a309c758 wlcore/wl18xx/wl12xx: aggregation buffer size set
Aggregation buffer size is set separately per 18xx/12xx chip family.
For 18xx aggragation buffer is set to 13 pages to utilize all
the available tx/rx descriptors for aggregation.

[Arik - remove redundant parts from the patch]

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Igal Chernobelsky f1c434df67 wl18xx/wl12xx: defines for Tx/Rx descriptors num
Use defines for number of Tx/Rx descriptors.

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov f83e54134a wlcore: tx_flush - optimize flow and force Tx during the flush
Force Tx during the flush if there are packets pending in the driver.
This actually solves a bug where we would get called from the mac80211
wq context, which would prevent tx_work from getting queued, even when
the mutex is unlocked.

Don't stop the queues needlessly if there's nothing to flush. Use a
larger delay when sleeping to give the driver a chance to flush and
avoid cpu busy looping. Re-arrange the loop so the last iteration is
not wasted.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov 958e303abb wlcore: make Tx flush timings more verbose
Print how much time a flush took. This will help debug the time it takes
to switch between channels.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov 714947600e wlcore: allow only the lowest OFDM rate for p2p setup frames
The IEEE80211_TX_CTL_NO_CCK_RATE flag is only set for mgmt packets
transmitted during p2p connection setup. Make sure to use the lowest
OFDM rate guarantee the peer always hears us.
Change the p2p rate policy to contain only the 6mpbs rate to acheive
this effect.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov c3e06fc03b wlcore: AP mode - send non-data packets with basic rates
This solves interoperability issues with peer that don't seem to "hear"
management packets transmitted in higher rates. Based on a previous
patch by Igal Chernobelsky.

Cc: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Eliad Peller 6dbc5fc259 wlcore: cancel recovery_work on stop() instead of remove_interface()
recovery_work should be cancelled when stopping the device,
not when removing an interface (this is probably a leftover
from the single-role days)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Reis 9ae48aeaa3 wl18xx: increase rx_ba_win_size to 32
The new FWs support a bigger BA window.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Yariv 4cc533830b wlcore: Prevent interaction with HW after recovery is queued
When a function requests to recover, it would normally abort and will
not send any additional commands to the HW. However, other threads may
not be aware of the failure and could try to communicate with the HW
after a recovery was queued, but before the recovery work began.

Fix this by introducing an intermediate state which is set when recovery
is queued, and modify all state checks accordingly.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Eliad Peller 9b1a0a7771 wlcore: consider single fw case
When a single fw is being used for both single-role
and multi-role cases (e.g. 18xx), wl->mr_fw_name is
NULL, which results in NULL dereference while trying
to load the multi-role fw.

In this case, always use the single-role fw, and avoid
redundant fw switch by checking for this case in
wl12xx_need_fw_change() as well.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Reis e1c497c3e4 wl18xx: update default phy configuration for pg2
default switch configuration set to pg2 chips (rdl 1/2/3/4).
removed hacks for specific board types.
pg1.x boards are now supported only using module params
or specific conf files.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Wei Yongjun 27b7ce7c7f wl12xx: remove duplicated include from main.c
Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:07:30 +03:00
Tim Gardner 0635ad4550 wlcore: Declare MODULE_FIRMWARE usage
Declare any firmware that might be used by this driver.
If all drivers declare their firmware usage, then a sufficiently
complete list of firmware files can then be used to pare down
the external linux-firmware package to just the files in actual use.

Cc: Luciano Coelho <coelho@ti.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:07:28 +03:00
Luciano Coelho ae35c30c14 wl12xx: use module_platform_driver
Use a module_platform_driver declaration instead of replicating the
init and exit functions in the driver.

Based on the patch for wl18xx by Devendra Naga.

Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:02:38 +03:00
Devendra Naga 77e7b30b23 wl18xx: use module_platform_driver
the driver's init and exit routines can be implemented with the
module_platform_driver, as the init and exit code is same as
that of the module_platform_driver

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 11:44:40 +03:00
John W. Linville 944f8a1a6f ath5k: add missing breaks in ath5k_hw_set_spur_mitigation_filter
https://bugzilla.kernel.org/show_bug.cgi?id=47681

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:44 -04:00
Rajkumar Manoharan a50d1fd452 ath9k_hw: fix BT sleep state on chip wakeup
Whenever both WLAN and BT in/out sleep mode, sometimes WLAN
is not able to take back the shared LNA control after resumes
from sleep mode. The idea is that for WLAN to check if BT owns
LNA control and BT is in sleep mode when WLAN just resumes from
sleep mode. If the condition is true, do a BTCOEX_RC_WARM_RESET
for WLAN to take back the control of shared LNA.
Now the issue is the BT sleep value read from MCI register is
overlooked by assigning u32 into u8. Hence the above condition never
be met so that WLAN used to report beacon losses and frequent
connection drops.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Tested-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:44 -04:00
Gertjan van Wingerde 55d2e9da74 rt2x00: Replace open coded interface checking with interface combinations.
Mac80211 has formal infrastructure to specify which interface combinations
are supported. Make use of this facility in favor of open coding it
ourselves.
So far we only have to specify we can support multiple AP interfaces,
no other combinations are supported.

Inspired by an earlier patch from Paul Fertser.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:44 -04:00
Gertjan van Wingerde 3e4c4151e5 rt2x00: Deprecate max_sta_intf field of struct rt2x00_ops.
All drivers set this value to 1, so there is no need (currently) to let
drivers set this.
Therefor, remove the field; we can always add it back when it is needed.

Inspired by an earlier patch from Paul Fertser.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:43 -04:00
Dan Carpenter fd0fc5218d mwifiex: potential corruption in mwifiex_update_uap_custom_ie()
ap_custom_ie is a struct mwifiex_ie_list which is quite different and
also larger than struct mwifiex_ie.  It's a difference between 4196
bytes and 262.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Stone Piao <piaoyun@marvell.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:43 -04:00
Sujith Manoharan 046b6802c8 ath9k: Disable ASPM only for AR9285
Currently, ASPM is disabled for all WLAN+BT combo chipsets
when BTCOEX is enabled. This is incorrect since the workaround
is required only for WB195, which is a AR9285+AR3011 combo
solution. Fix this by checking for the HW version when enabling
the workaround.

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Tested-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-25 15:57:43 -04:00
John W. Linville 63c664242d Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2012-09-25 15:55:02 -04:00
John W. Linville 5419575e83 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-09-25 15:54:32 -04:00
David S. Miller 41e268565a Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
Please pull this last(?) batch of fixes intended for 3.6...

For the Bluetooth bits, Gustavo says this:

"Here goes probably my last update to 3.6. It includes the two patches
you were ok last week(from Andrzej Kaczmarek), those are critical
ones, and two other fixes one for a system crash and the other for
a missing lockdep annotation."

The referenced fixes from Andrzej prevent attempts to configure devices
that are powered-off.

Along with the Bluetooth fixes, there are a couple of 802.11 fixes.
Emmanuel Grumbach gives us an iwlwifi fix to prevent releasing an
interrupt twice.  Luis R. Rodriguez provides a fix for a possible
circular lock dependency in the cfg80211 regulatory enforcement code.

All of these have been in linux-next for a few days.  I hope they are
not too late to make the 3.6 release!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 22:00:00 -04:00
Steven J. Hill 718cffc4ac net: mipsnet: Remove the MIPSsim Ethernet driver.
The MIPSsim platform is no longer supported or used. This patch
deletes the Ethernet driver.

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 16:47:23 -04:00
Claudiu Manoil b98b8babd6 gianfar: Change default HW Tx queue scheduling mode
This is primarily to address transmission timeout occurrences, when
multiple H/W Tx queues are being used concurrently. Because in
the priority scheduling mode the controller does not service the
Tx queues equally (but in ascending index order), Tx timeouts are
being triggered rightaway for a basic test with multiple simultaneous
connections like:
iperf -c <server_ip> -n 100M -P 8

resulting in kernel trace:
NETDEV WATCHDOG: eth1 (fsl-gianfar): transmit queue <X> timed out
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:255
...
and controller reset during intense traffic, and possibly further
complications.

This patch changes the default H/W Tx scheduling setting (TXSCHED)
for multi-queue devices, from priority scheduling mode to a weighted
round robin mode with equal weights for all H/W Tx queues, and
addresses the issue above.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 16:25:16 -04:00
Eric Dumazet 0cf833aefa net: loopback: set default mtu to 64K
loopback current mtu of 16436 bytes allows no more than 3 MSS TCP
segments per frame, or 48 Kbytes. Changing mtu to 64K allows TCP
stack to build large frames and significantly reduces stack overhead.

Performance boost on bulk TCP transferts can be up to 30 %, partly
because we now have one ACK message for two 64KB segments, and a lower
probability of hitting /proc/sys/net/ipv4/tcp_reordering default limit.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 16:23:53 -04:00
Marek Vasut 510d573fef phy/micrel: Rename KS80xx to KSZ80xx
There is no such part as KS8001, KS8041 or KS8051. There are only
KSZ8001, KSZ8041 and KSZ8051. Rename these parts as such to match
the Micrel naming.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David J. Choi <david.choi@micrel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Cc: Linux ARM kernel <linux-arm-kernel@lists.infradead.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 15:54:33 -04:00
Marek Vasut 212ea99a85 phy/micrel: Implement support for KSZ8021
The KSZ8021 PHY was previously caught by KS8051, which is not correct.
This PHY needs additional setup if it is strapped for address 0. In such
case an reserved bit must be written in the 0x16, "Operation Mode Strap
Override" register. According to the KS8051 datasheet, that bit means
"PHY Address 0 in non-broadcast" and it indeed behaves as such on KSZ8021.
The issue where the ethernet controller (Freescale FEC) did not communicate
with network is fixed by writing this bit as 1.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David J. Choi <david.choi@micrel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 15:54:32 -04:00
Merav Sicron 5889335c50 bnx2x: Improve code around bnx2x_tests_str_arr
This patch changes the definition of bnx2x_tests_str_arr from static char
pointer to static const char bi-directional array. Also the
bnx2x_get_strings function is simplified.

Reported-by: Joe Perches <joe@perches.com>
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 15:46:44 -04:00
Chun-Yeow Yeoh 90e6274d2e ath5k: disable HW crypto in management frame
Hardware support for MFP is not available in ath5k. Thus,
this implementation allows the mac80211 stack to do the
actuall crypto operation.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:08 -04:00
Christian Lamparter e37b674156 carl9170: connect to 11w protected networks
Previously, it was not possible to connect to
networks which requires 11w to be supported by
the stations.

While the documentation hints that there's some
hardware support for offloading MFP "decryption",
this simple implementation relies on the mac80211
stack to do the actual crypto operations.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:08 -04:00
Christian Lamparter 960334a7d3 p54: connect to 11w protected networks
Previously, it was not possible to connect to
networks which requires 11w to be supported by
the stations.

Note:

As all current (and old) firmwares corrupt
incoming, protected management frames, the
decryption offloading needs to be disabled.
This will be done automatically if needed.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:08 -04:00
Johannes Berg 742e7a9322 iwlegacy: use eth_broadcast_addr
Instead of copying from a constant array
(which is still needed for other purposes)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:08 -04:00
Paul Bolle 3fc7bc8ea7 ipw2x00: silence GCC warning for unused variable 'dev'
Building the libipw component without CONFIG_LIBIPW_DEBUG set triggers this GCC
warning:
    drivers/net/wireless/ipw2x00/libipw_wx.c:526:21: warning: unused variable 'dev' [-Wunused-variable]

The cause of this warning is that, without CONFIG_LIBIPW_DEBUG set,
LIBIPW_DEBUG_WX compiles away. Fix it by substituting ieee->dev for (its
equivalent) dev.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:08 -04:00
Amitkumar Karwar de09364eca mwifiex: block scan request during heavy Tx traffic
Currently scan operation is delayed/aborted based on Tx traffic
consistency. This decision is taken after receiving scan
response of first scan command from FW. But when heavy traffic
is running, we can not even afford to send first scan command
and go off channel for 30msec. We will block scan request in
this case.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:07 -04:00
Amitkumar Karwar 22c22d2710 mwifiex: disconnect the device before entering suspend state
By default, device is disconnected before entering suspend state.
User can keep the connection alive by using module parameter
"disconect_on_suspend=0".

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:07 -04:00
Arend van Spriel ee928381ec brcmfmac: get rid of void pointer in struct brcmf_cfg80211_priv
Field 'pub' in struct brcmf_cfg80211_priv was types as void pointer
and filled with parameter passed in brcmf_cfg80211_attach(). This
patch makes the type specific, ie. struct brcmf_pub.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:07 -04:00
Arend van Spriel 02030eb61d brcmfmac: change struct brcmf_cfg80211_priv comments to kernel-doc
Small step to fix structure commenting using kernel-doc syntax.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:06 -04:00
Hante Meuleman 6385df2db7 brcmfmac: clear control lock on usb error.
On a usb error the lock bit should be cleared.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:06 -04:00
Piotr Haber 82d8eba358 brcmsmac: don't start device when RfKill is engaged
This patch fixes a bug when device is being started
while RfKill switch is engaged, leading to hang
due to partial initialization of hardware.

Tested-by: <dragonn@op.pl>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:06 -04:00
Hante Meuleman 816432922b brcmfmac: remove unused usb bmac model code.
clean up code.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:06 -04:00
Hante Meuleman 3ba8137676 brcmfmac: fix bug in determining phy bands.
This patch fixes a bug in routine where phy bands are determined.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:06 -04:00
Hante Meuleman 95f59e8cbd brcmfmac: remove unused function.
clean up code.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:05 -04:00
Franky Lin 4754fceeb9 brcmfmac: streamline SDIO read frame routine
SDIO read non-glomming frame routine handles first frame and
follow up frame read separately. But they share a lot of common
code. This patch abstracts a brcmf_sdio_hdparser function and
optimize the code flow for better readability and future
optimization.

Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:05 -04:00
Hante Meuleman 803599d404 brcmfmac: store usb fw images in local linked list.
For suspend/resume it is necessary to store firmware in memory.
In order to support multiple usb dongles at the same time a linked
list of firmwares was created.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:05 -04:00
Hante Meuleman 30c52bcf5c brcmfmac: fix debug printout of event data.
Some events result in printing of the buffer when debug is
enabled. This printing was not very efficient. Changed to
macro so it comes out nice and clean without filling log buffer.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:05 -04:00
Arend van Spriel e58060723c brcmfmac: introduce scheduled scan support
This change add support for NL80211 scheduled scan. This may be used to
offload scanning to the device, which may give the host opportunity to
sleep. The newer versions of wpa_supplicant have support for this
functionality.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:05 -04:00
Arend van Spriel 108a4bee9d brcmfmac: extend brcmf_term_iscan() to abort e-scan
With the introduction of E-Scan there are two scan mechanisms
in the driver. I-Scan was aborted on suspend and bringing down
the device using brcmf_term_iscan(). The function has been
renamed to brcmf_abort_scanning() and covers e-scan abort as
well.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:04 -04:00
Arend van Spriel 029591f348 brcmfmac: fix sparse warnings in e-scan related code
With the introduction of e-scan mechanism in brcmfmac
(e756af5 brcmfmac: add e-scan support.) a couple of sparse
warnings were introduced. This patch resolves those.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:04 -04:00
Amitkumar Karwar 9a17bad1c7 mwifiex: fix issue in resumed scan operation
When delayed scan operation is resumed, we just add next scan
command in queue but don't wakeup main thread to process the
command. Hence the command is downloaded to firmware only after
waking up the main thread by any other means.

This bug which was introduced after "mwifiex: improve scan delay
logic.." patch is fixed here.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 15:02:04 -04:00
Gertjan van Wingerde 7ad6303522 rt2x00: Clean up RFCSR1 programming in rt2800_config_channel_rf3xxx.
Setting of the individual fields of the RF register can be simplified.

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>
2012-09-24 14:59:13 -04:00
Gertjan van Wingerde 5b196139e5 rt2x00: Code style cleanup in rt2800lib.c
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>
2012-09-24 14:59:12 -04:00
Gertjan van Wingerde 59d1287428 rt2x00: rt2800lib - code cleanup.
Move RT3290 BBP initialization sequence (part) to the right place in the code.

This is just a code style change, no functional changes.

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>
2012-09-24 14:59:12 -04:00
Gertjan van Wingerde d961e447a6 rt2x00: rt2800 - Fix default vgc values for RT3572
Align with the values used by the RT3572 Ralink vendor driver v2.5.0.0.

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>
2012-09-24 14:59:12 -04:00
Gertjan van Wingerde 8c6728b08e rt2x00: Code clean up in rt2800lib.
Make the code in rt2800_get_default_vgc more understandable and
readable, especially for the 5GHz band values.

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>
2012-09-24 14:59:12 -04:00
Sujith Manoharan 06236e53ce ath9k_hw: Enable WLAN RX diversity for AR9565
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:12 -04:00
Sujith Manoharan e09f2dc73c ath9k: Add a module parameter to enable diversity
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:11 -04:00
Sujith Manoharan 362cd03fd8 ath9k_hw: Add a HW callback to set diversity
This patch adds a new callback to handle WLAN RX diversity for
AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:11 -04:00
Sujith Manoharan 68f7586c7b ath9k_hw: Update AR9565 initvals
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:11 -04:00
Sujith Manoharan 5317c9c3e9 ath9k_hw: Add antenna diversity group for AR9565
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:11 -04:00
Sujith Manoharan 9b460d77e7 ath9k: Remove a couple of unused variables
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:10 -04:00
Sujith Manoharan d85ed4196e ath9k: Remove redundant variable assignment
Set main_gaintb and alt_gaintb once instead of zero'ing them
in every case.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:10 -04:00
Sujith Manoharan 915154b62b ath9k_hw: Use HW cap ATH9K_HW_CAP_ANT_DIV_COMB
Instead of trying to determine whether antenna diversity is
enabled by parsing eeprom data, use ATH9K_HW_CAP_ANT_DIV_COMB
which is already filled at init time.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:10 -04:00
Mohammed Shafi Shajakhan 5418b0f0ad ath9k: update hw_timer_enabled to false when we stop generic timers
Update the 'hw_timer_enabled' to 'false' wherever we are stopping
hardware generic timers, excecpt the case where we start them
again immediately.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:10 -04:00
Arend van Spriel 97ed15c7eb brcmfmac: simplify handling e-scan result firmware event
Upon handling an e-scan result event from the firmware in
brcmf_cfg80211_escan_handler() the status may indicate e-scan
is completed or aborted. If so brcmf_notify_escan_complete()
is called. However, that function and brcmf_cfg80211_escan_handler()
both log the same debug message and both enable MPC flag in the
firmware.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:10 -04:00
Arend van Spriel 4f6e1cafe2 brcmfmac: add parameter check in brcmf_c_mkiovar()
This patch assures data is only appended in output buffer when
data is not NULL and datalen is not zero.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:09 -04:00
Hante Meuleman 9cd23a7191 brcmfmac: fix bug causing errorneous free on exception.
This patch fixes bug where driver frees resources twice when
an exception occurs.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:09 -04:00
Franky Lin 4531603a7a brcmfmac: clear status for in-band interrupt in brcmf_sdbrcm_isr
SDIO in-band interrupt is level sensitive according to SDIO standard.
When the register interrupt handler gets called by SDIO stack it is
running in non interrupt context and expected to clear the interrupt
from the dongle. Therefore in-band and out-of-band interrupt need to
be handled differently.

Cc: Wei Ni <wni@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>

Reported-by: Wei Ni <wni@nvidia.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:09 -04:00
Franky Lin 7057fd00da brcmfmac: raise SDIO host lock to higher level
Use SDIO host lock to protect the entire communication process
of register access or data read/write rather than function calls
to MMC/SDIO stack only. This can help to avoid unintentional
memory access and unexpected interruption.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:09 -04:00
Franky Lin 03d5c360dc brcmfmac: streamline SDIO dpc
Streamline SDIO dpc by removing some unnecessary code path.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:08 -04:00
Franky Lin f1e68c2e0a brcmfmac: convert SDIO dpc implementation to workqueue
Switch SDIO dpc implementation from kernel thread to workqueue for
better performance and compatibility.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:08 -04:00
Franky Lin 1d38227371 brcmfmac: use atomic variable for interrupt pending flag
Interrupt pending flag used in SDIO bus layer could be used in
multiple processes in different context. Use atomic_t make sure
every interrupt is handled.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:08 -04:00
Franky Lin 86761fcbea brcmfmac: remove obsolete sdio bus sleep mechanism
Remove sdio bus sleep mechanism since it is never invoked.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:08 -04:00
Franky Lin 8514fd02ba brcmfmac: absorb brcmf_sendpkt into brcmf_netdev_start_xmit
brcmf_sendpkt only called by brcmf_netdev_start_xmit now. Absorb it
to increase readability.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:08 -04:00
Ming Lei e962610f81 wireless: ath9k-htc: fix possible use after free
Inside ath9k_hif_usb_firmware_fail(), the instance of
'struct struct hif_device_usb' may be freed by
ath9k_hif_usb_disconnect() after

	complete(&hif_dev->fw_done);

But 'hif_dev' is still accessed after the line code
above is executed.

This patch fixes the issue by not accessing 'hif_dev'
after 'complete(&hif_dev->fw_done)' inside
ath9k_hif_usb_firmware_fail().

Cc: ath9k-devel@lists.ath9k.org
Cc: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com>
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:07 -04:00
Rajkumar Manoharan 7a03414686 ath9k: fix queuing MCI work twice
Right now MCI work is being queued twice by profile and status
updation. Queue MCI work once when it is needed.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:07 -04:00
Rajkumar Manoharan 8f176a3a16 ath9k: fill led_pin before drv_start
Ensure that led pin is filled and set to OFF before starting
the driver. With recent changes, drv_start is being called even
before led_init is being completed. This is causing led is always
OFF on driver load when the interface is UP. This patch splits the
led init and fills the led pin before register hw.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:07 -04:00
Rajkumar Manoharan 9e62817b9f ath9k: move coex param updation within mci work
Update all coex parameters in sigle place. So that we can avoid
redoing the same operation in mutiple places and it eases debugging.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:07 -04:00
Rajkumar Manoharan d92bb98f0c ath9k: flush bt profile whenever it is requested
Before processing BT profiles or status messages, check whether
it is requested to flush BT profile. Otherwise it might increase
number of BT profiles that affects the WLAN performance. Also
flush the profiles when MCI is recovering from broken rx. After
flushing BT profiles, query BT topology to refetch them.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:06 -04:00
Rajkumar Manoharan bfbee42793 ath9k_hw: fix ar9462 selfgen chainmask
When the 9462 is operating in 2G mode and MCI is enabled then
reduce the selfgen chain mask to chain 1. Otherwise poor performance
was reported at short range at Rx side when COEX is enabled.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:06 -04:00
Rajkumar Manoharan 88033318e1 ath9k_hw: move 2g5g switch before nfcal start
During fast channel change, perform 2g5g_switch before starting
noisefloor calibration to avoid nfload timeout.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:06 -04:00
Sujith Manoharan 215999f380 ath9k: Enable SGI correctly
Set the driver specific SGI flag based on the station's
HT capabilities, otherwise rate control uses the wrong rate.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24 14:59:06 -04:00
John W. Linville e5a876250d Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2012-09-24 14:37:36 -04:00
John W. Linville 9b4e9e7565 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-09-24 14:34:40 -04:00
Alexander Duyck 2ddc7fe1cd ixgbevf: Return error on failure to enable VLAN
With recent kernel changes we can now return errors on a failure to setup a
VLAN filter.  This patch takes advantage of that opportunity so that we can
return either an EIO error in the case of a mailbox failure, or an EACCESS
error in the case of being denied access to the VLAN filter table by the
PF.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Robert Garrett <robertx.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-24 01:50:45 -07:00
Alexander Duyck 5c60f81a25 ixgbevf: Add fix to VF to handle multi-descriptor buffers
This change fixes the ixgbevf driver so that it can correctly drop a frame
should it receive a jumbo frame.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-24 01:50:35 -07:00