Commit Graph

64688 Commits

Author SHA1 Message Date
John Holland
806ffb1d50 igb: allow setting MAC address on i211 using a device tree blob
The Intel i211 LOM PCIe Ethernet controllers' iNVM operates as an OTP
and has no external EEPROM interface [1]. The following allows the
driver to pickup the MAC address from a device tree blob when CONFIG_OF
has been enabled.

[1]
http://www.intel.com/content/www/us/en/embedded/products/networking/i211-ethernet-controller-datasheet.html

Signed-off-by: John Holland <jotihojr@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-06 12:38:36 -07:00
Alexander Duyck
7f0ba84560 igb: Add support for bulk Tx cleanup & cleanup boolean logic
This patch enables bulk free in Tx cleanup for igb and cleans up the
boolean logic in the polling routines for igb in the hopes of avoiding
any mix-ups similar to what occurred with i40e and i40evf.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-06 12:26:36 -07:00
Alexander Duyck
415cd2a645 igb: Fix sparse warning about passing __beXX into leXX_to_cpup
We were casting the addr as __beXX and then passing it into le32_to_cpu
because the device expects the MAC address to be in network order even
though the register set is little endian.  Instead of casting it as __beXX
we can just cast it as __leXX in order to maintain consistency since the
region of memory is already in little endian order as far as we are
concerned.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-06 12:16:07 -07:00
Amitkumar Karwar
d9f5725fb0 mwifiex: advertise low priority scan feature
Low priority scan handling code which delays or aborts scan
operation based on Tx traffic is removed recently. The reason
is firmware already takes care of it in our new feature scan
channel gap. Hence we should advertise low priority scan
support to cfg80211.

This patch fixes a problem in which OBSS scan request from
wpa_supplicant was being rejected by cfg80211.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Wei-Ning Huang <wnhuang@chromium.org>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:43:16 +03:00
Colin Ian King
3d43e03184 brcmfmac: sdio: remove unused variable retry_limit
retry_limit has never been used during the life of this driver, so
we may as well remove it as it is redundant.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:42:18 +03:00
Vishal Thanki
8b4c000931 rt2x00usb: Use usb anchor to manage URB
With current driver, it is observed that a URB is not
completed while the USB disconnect is initiated. Due to
that, the URB completion handler is trying to access
the resource which was freed as a part of USB disconnect.
Managing the URBs with anchor will make sure that all
the URBs are handled gracefully before device gets
disconnected.

Signed-off-by: Vishal Thanki <vishalthanki@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:40:43 +03:00
Colin Ian King
e32993eb3a wl12xx: remove redundant null check on wl->scan.ssid
ssid is an array of u8, so it can never be null, so the null check on
wl->scan.ssid is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:39:23 +03:00
Joe Perches
466414a084 rtlwifi: btcoexist: Convert BTC_PRINTK to btc_<foo>_dbg
Use a more common logging style.

Miscellanea:

o Add specific logging macros for ALGORITHM and INTERFACE types
o Output the messages at KERN_DEBUG
o Coalesce formats
o Align arguments
o Whitespace style adjustments for only these changes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:37:16 +03:00
Larry Finger
1e81245820 rtlwifi: rtl8821ae: Fix Smatch warnings
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:1960 rtl8812ae_dm_txpower_tracking_callback_thermalmeter() warn: inconsistent indenting
  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:455 phy_get_tx_swing_8812A() warn: inconsistent indenting
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:517 phy_get_tx_swing_8812A() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:28 +03:00
Larry Finger
b3c4201bce rtlwifi: rtl8723be: Fix Smatch warnings
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c
drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:1726 _rtl8723be_phy_path_a_rx_iqk() warn: inconsistent indenting
drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:2304 _rtl8723be_phy_lc_calibrate() warn: inconsistent indenting
drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:2609 _rtl8723be_phy_set_rf_power_state() warn: inconsistent indenting
  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8723be/rf.c
drivers/net/wireless/realtek/rtlwifi/rtl8723be/rf.c:306 _rtl8723be_get_txpower_writeval_by_regulatory() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:27 +03:00
Larry Finger
154fb486df rtlwifi: rtl8723ae: Fix Smatch warning
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hal_btc.c
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hal_btc.c:137 rtl8723e_dm_bt_need_to_dec_bt_pwr() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:25 +03:00
Larry Finger
c42ceccec1 rtlwifi: rtl8192se: Fix Smatch warning
Smatch lists the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c:648 rtl92s_phy_set_rf_power_state() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:24 +03:00
Larry Finger
05d9e1bba4 rtlwifi: rtl8192ee: Fix Smatch warning
Smatch lists the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8192ee/trx.c
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/trx.c:371 rtl92ee_rx_query_desc() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:23 +03:00
Larry Finger
de8a9a6eeb rtlwifi: rtl8192c-common: Fix Smatch warning
Smatch lists the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8192c/dm_common.c
drivers/net/wireless/realtek/rtlwifi/rtl8192c/dm_common.c:243 rtl92c_dm_false_alarm_counter_statistics() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:22 +03:00
Larry Finger
844026f609 rtlwifi: rtl8188ee: Fix Smatch warnings
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8188ee/dm.c
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/dm.c:1140 rtl88e_dm_check_txpower_tracking() warn: inconsistent indenting
  CHECK   drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c:1906 _rtl88e_phy_lc_calibrate() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:21 +03:00
Larry Finger
2e074fab34 rtlwifi: btcoexist: Fix Smatch warning
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3078 btc8723b2ant_run_coexist_mechanism() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:20 +03:00
Larry Finger
37c52934c6 rtlwifi: Fix Smatch warnings
Smatch reports the following:

  CHECK   drivers/net/wireless/realtek/rtlwifi/pci.c
drivers/net/wireless/realtek/rtlwifi/pci.c:366 rtl_pci_check_buddy_priv() error: we previously assumed 'tpriv' could be null (see line 368)
drivers/net/wireless/realtek/rtlwifi/pci.c:1216 _rtl_pci_init_struct() warn: inconsistent indenting

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:36:18 +03:00
Larry Finger
baa1702290 rtlwifi: btcoexist: Implement antenna selection
The previous patch added an option to rtl8723be to manually select the
antenna for those cases when only a single antenna is present, and the
on-board EEPROM is incorrectly programmed. This patch implements the
necessary changes in the Bluetooth coexistence driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V4.0+]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:34:01 +03:00
Larry Finger
c18d8f5095 rtlwifi: rtl8723be: Add antenna select module parameter
A number of new laptops have been delivered with only a single antenna.
In principle, this is OK; however, a problem arises when the on-board
EEPROM is programmed to use the other antenna connection. The option
of opening the computer and moving the connector is not always possible
as it will void the warranty in some cases. In addition, this solution
breaks the Windows driver when the box dual boots Linux and Windows.

A fix involving a new module parameter has been developed.  This commit
adds the new parameter and implements the changes needed for the driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V4.0+]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:28:30 +03:00
Amitkumar Karwar
0026b32d72 mwifiex: fix Tx timeout issue during suspend test
Call netif_carrier_off/on while stoping/starting netdev queues.
This fixes netdev watchdog warning and ->ndo_tx_timeout() invocation
during suspend resume stress test.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Fixes: 54f008497b ('mwifiex: Empty Tx queue during suspend')
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:27:50 +03:00
Dan Carpenter
977bc52300 brcmfmac: uninitialized "ret" variable
There is an error path where "ret" isn't initialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:27:16 +03:00
Geert Uytterhoeven
f8df33da2c mwifiex: Spelling s/minmum/minimum/, s/bandwidth/bandwith/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-06 21:24:25 +03:00
Hariprasad Shenai
529927f952 cxgb4: Add pci device id for chelsio t520-cr adapter
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-06 14:21:20 -04:00
Kalle Valo
97b9b84464 Merge tag 'iwlwifi-next-for-kalle-2016-03-30' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
* Support for Link Quality measurement (Aviya)
* Improvements in thermal (Chaya Rachel)
* Various cleanups (many people)
* Improvements in firmware error dump (Golan)
* More work 9000 devices and MSIx (Haim)
* Continuation of the Dynamic Queue Allocation work (Liad)
* Scan timeout to cope with buggy firmware (Luca)
* D0i3 improvements (Luca)
* Make the paging less memory hungry (Matti)
* 9000 new Rx path (Sara)
2016-04-06 21:16:01 +03:00
Johannes Berg
d63b548fff mac80211: allow passing transmitter station on RX
Sometimes drivers already looked up, or know out-of-band
from their device, which station transmitted a given RX
frame. Allow them to pass the station pointer to mac80211
to save the extra lookup.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-06 13:18:13 +02:00
Alexander Duyck
24d41e5e2c i40e/i40evf: Fix TSO checksum pseudo-header adjustment
With IPv4 and IPv6 now using the same format for checksums based on the
length of the frame we need to update the i40e and i40evf drivers so that
they correctly account for lengths greater than or equal to 64K.

With this patch the driver should now correctly update checksums for frames
up to 16776960 in length which should be more than large enough for all
possible TSO frames in the near future.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:34:51 -07:00
Avinash Dayanand
066439ce79 i40e/i40evf: Bump patch from 1.5.1 to 1.5.2
Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:34:46 -07:00
Shannon Nelson
867a79e37e i40e: Request PHY media event at reset time
Add the Media Not Available flag to the link event mask.  It seems
that event comes first if you have a DA cable pulled out, but there's no
follow-up event for Link Down; if you're not looking for MEDIA_NA you will
get no event, even though there's now no Link.

Change-ID: cb3340a2849805bb881f64f6f2ae810eef46eba7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:55 -07:00
Mitch Williams
18b7af57d9 i40e: Lower some message levels
These conditions can happen any time VFs are enabled or disabled and are
not really indicative of fatal problems unless they happen continuously.

Lower the log level so that people don't get scared.

Change-ID: I1ceb4adbd10d03cbeed54d1f5b7f20d60328351d
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:49 -07:00
Avinash Dayanand
16badc3469 i40e: Fix for supported link modes in 10GBaseT PHY's
100baseT/Full is now listed and supported link mode for 10GBaseT PHY.
This is a fix to list all the supported link modes of 10GBaseT PHY.

Change-ID: If2be3212ef0fef85fd5d6e4550c7783de2f915e9
Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:43 -07:00
Catherine Sullivan
539a379c50 i40evf: Fix get_rss_aq
We were passing in the seed where we should just be passing false
because we want the VSI table not the pf table.

Change-ID: I9b633ab06eb59468087f0c0af8539857e99f9495
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:38 -07:00
Shannon Nelson
8c806b676d i40e: Disable link polling
Periodic link polling was added when the link events were found not to be
trustworthy.  This was the case early on, but was likely because the link
event mask was being used incorrectly.  As this has been fixed in recent
code, we can disable the link polling to lessen the AQ traffic.

Change-ID: Id890b5ee3c2d04381fc76ffa434777644f5d8eb0
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:33 -07:00
Mitch Williams
22ead37f8a i40evf: Add longer wait after remove module
Upon module remove, wait a little longer after requesting a reset before
checking to see if the firmware responded. This change prevents double
resets when the firmware is busy.

Change-ID: Ieedc988ee82fac1f32a074bf4d9e4dba426bfa58
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:27 -07:00
Mitch Williams
7369ca8745 i40e: Make VF resets more reliable
Clear the VFLR bit immediately after triggering a reset instead of
waiting until after cleanup is complete. Make sure to trigger a reset
every time, not just if the PF is up.

These changes fix a problem where VF resets would get lost by the PF,
preventing the VF driver from initializing.

Change-ID: I5945cf2884095b7b0554867c64df8617e71d9d29
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:19 -07:00
Catherine Sullivan
d6bf58c2e8 i40e: Add new device ID for X722
The new device ID is 0x37D3 and it should follow the same flows and
branding string as for 0x37D0.

Change-ID: Ia5ad4a1910268c4666a3fd46a7afffbec55b4fc2
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:33:14 -07:00
Mitch Williams
c4445aedfe i40evf: Fix VLAN features
Users of ethtool were being given the mistaken impression that this
driver was able to change its VLAN tagging features, and were
disappointed that this was not actually the case. Implement
ndo_fix_features method so that we can adjust these flags as needed to
avoid false impressions.

Change-ID: I08584f103a4fa73d6a4128d472e4ef44dcfda57f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 20:32:48 -07:00
Mitch Williams
442b25e455 i40e: Remove unused variable
This variable is vestigial, a remnant of the primordial code from which
this driver spawned. We can safely remove it.

Change-ID: I24e0fe338e7c7c50d27dc5515564f33caefbb93a
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 19:03:07 -07:00
Anjali Singhai Jain
3845ccea34 i40e: Enable Geneve offload for FW API ver > 1.4 for XL710/X710 devices
This patch enables the Capability for XL710/X710 devices with FW API
version higher than 1.4 to do geneve Rx offload.

Change-ID: I9a8f87772c48d7d67dc85e3701d2e0b845034c0b
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 18:58:14 -07:00
Colin King
afb8ece432 i40e: remove redundant check on vsi->active_vlans
active_vlans is an unsigned long array, hence a null check on this
array is superfluous and can be removed.

Detected with static analysis by smatch:

drivers/net/ethernet/intel/i40e/i40e_debugfs.c:386
  i40e_dbg_dump_vsi_seid() warn: this array is probably
  non-NULL. 'vsi->active_vlans'

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 18:52:14 -07:00
Thomas Falcon
9be02cdfa6 ibmvnic: enable RX checksum offload
Enable RX Checksum offload feature in the ibmvnic driver.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 19:51:38 -04:00
Thomas Falcon
ad7775dc7b ibmvnic: map L2/L3/L4 header descriptors to firmware
Allow the VNIC driver to provide descriptors containing
L2/L3/L4 headers to firmware.  This feature is needed
for greater hardware compatibility and enablement of checksum
and TCP offloading features.

A new function is included for the hypervisor call,
H_SEND_SUBCRQ_INDIRECT, allowing a DMA-mapped array of SCRQ
descriptor elements to be sent to the VNIC server.

These additions will help fully enable checksum offloading as
well as other features as they are included later.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 19:51:37 -04:00
Petri Gynther
7ee4062562 net: bcmgenet: cleanup for dmadesc_set()
dmadesc_set() is used for setting the Tx buffer DMA address, length,
and status bits on a Tx ring descriptor when a frame is being Tx'ed.

Always set the Tx buffer DMA address first, before updating the length
and status bits, i.e. giving the Tx descriptor to the hardware.

The reason this is a cleanup rather than a fix is that the hardware
won't transmit anything from a Tx ring until the TDMA producer index
has been incremented. As long as the dmadesc_set() writes complete
before the TDMA producer index write, life is good.

Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 19:33:52 -04:00
Petri Gynther
824ba60357 net: bcmgenet: cleanup for bcmgenet_xmit_frag()
Add frag_size = skb_frag_size(frag) and use it when needed.

Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 19:33:51 -04:00
Petri Gynther
f5a9ec20b3 net: bcmgenet: cleanup for bcmgenet_xmit()
1. Readability: Move nr_frags assignment a few lines down in order
   to bundle index -> ring -> txq calculations together.
2. Readability: Add parentheses around nr_frags + 1.
3. Minor fix: Stop the Tx queue and throw the error message only if
   the Tx queue hasn't already been stopped.

Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 19:33:51 -04:00
Alexander Duyck
a4605fef71 e1000: Double Tx descriptors needed check for 82544
The 82544 has code that adds one additional descriptor per data buffer.
However we weren't taking that into account when determining the descriptors
needed for the next transmit at the end of the xmit_frame path.

This change takes that into account by doubling the number of descriptors
needed for the 82544 so that we can avoid a potential issue where we could
hang the Tx ring by loading frames with xmit_more enabled and then stopping
the ring without writing the tail.

In addition it adds a few more descriptors to account for some additional
workarounds that have been added over time.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 15:05:51 -07:00
Alexander Duyck
847a1d6796 e1000: Do not overestimate descriptor counts in Tx pre-check
The current code path is capable of grossly overestimating the number of
descriptors needed to transmit a new frame.  This specifically occurs if
the skb contains a number of 4K pages.  The issue is that the logic for
determining the descriptors needed is ((S) >> (X)) + 1.  When X is 12 it
means that we were indicating that we required 2 descriptors for each 4K
page when we only needed one.

This change corrects this by instead adding (1 << (X)) - 1 to the S value
instead of adding 1 after the fact.  This way we get an accurate descriptor
needed count as we are essentially doing a DIV_ROUNDUP().

Reported-by: Ivan Suzdal <isuzdal@mirantis.com>
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 14:59:05 -07:00
Jesse Brandeburg
8e2cc0e67f i40e: fix errant PCIe bandwidth message
There was an error introduced with commit 3fced53507 ("i40e: X722 is
on the IOSF bus and does not report the PCI bus info"), where code was
added but the enabling flag is never set.

CC: Anjali Singhai Jain <anjali.singhai@intel.com>
CC: Stefan Assman <sassman@redhat.com>
Fixes: 3fced53507 ("i40e: X722 is on the IOSF bus ...")
Reported-by: Steve Best <sbest@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-05 14:52:02 -07:00
David S. Miller
e43d15c8d3 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-04-05

This series contains updates to i40e and i40evf only.

Stefan converts dev_close() to ndo_stop() for ethtool offline self test,
since dev_close() causes IFF_UP to be cleared which will remove the
interface routes and addresses.

Alex bumps up the size of the transmit data buffer to 12K rather than 8K,
which provides a gain in throughput and a reduction in overhead for
putting together the frame.  Fixed an issue in the polling routines where
we were using bitwise operators to avoid the side effects of the
logical operators.  Then added support for bulk transmit clean for skbs.

Jesse fixed a sparse issue in the type casting in the transmit code and
fixed i40e_aq_set_phy_debug() to use i40e_status as a return code.

Catherine cleans up duplicated code.

Shannon fixed the cleaning up of the interrupt handling to clean up the
IRQs only if we actually got them set up.  Also fixed up the error
scenarios where we were trying to remove a non-existent timer or
worktask, which causes the kernel heartburn.

Mitch changes the notification of resets to the reset interrupt handler,
instead of the actual reset initiation code.  This allows the VFs to get
properly notified for all resets, including resets initiated by different
PFs on the same physical device.  Also moved the clearing of VFLR bit
after reset processing, instead of before which could lead to double
resets on VF init.  Fixed code comment to match the actual function name.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 16:26:31 -04:00
Michael Chan
29c262fed4 bnxt_en: Improve ethtool .get_settings().
If autoneg is off, we should always report the speed and duplex settings
even if it is link down so the user knows the current settings.  The
unknown speed and duplex should only be used for autoneg when link is
down.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 16:20:48 -04:00
Michael Chan
9d9cee08fc bnxt_en: Check for valid forced speed during ethtool -s.
Check that the forced speed is a valid speed supported by firmware.
If not supported, return -EINVAL.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-05 16:20:48 -04:00