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13 years agoixgbe: clear RNBC only for 82598
Emil Tantilov [Fri, 29 Jul 2011 06:46:15 +0000 (06:46 +0000)]
ixgbe: clear RNBC only for 82598

RNBC (0x03FC0) is only for 82598 and has different meaning
on newer HW. Make sure to only clear it for 82598.

(cherry picked from commit f3116f62cb56ef5efd172371fab688bb27529f69)
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: add check for supported modes
Emil Tantilov [Fri, 29 Jul 2011 06:46:10 +0000 (06:46 +0000)]
ixgbe: add check for supported modes

When setting advertised speed/duplex with ethtool.

Also cleaned up the comment since we also support 100/F.

(cherry picked from commit abcc80d26cc0408cad520471a1ada6aa421921ab)
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: fix ixgbe_fc_autoneg_fiber bug
Don Skidmore [Thu, 28 Jul 2011 01:00:58 +0000 (01:00 +0000)]
ixgbe: fix ixgbe_fc_autoneg_fiber bug

A logic error in ixgbe_fc_autoneg_fiber() that treated a masked u32 as a
boolean would make it so we would never fall hit a error check case.  So
now I force the u32 to a boolean value with '!!'.

(cherry picked from commit 53f096de3a2d04dc034b9dbcb160c6448960309d)
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: cleanup feature flags in ixgbe_probe
Don Skidmore [Sat, 30 Jul 2011 05:08:18 +0000 (05:08 +0000)]
ixgbe: cleanup feature flags in ixgbe_probe

I'm removing NETIF_F_GRO from being initialed in the feature flags during
ixgbe_probe() bases on a comment from Michal Miroslaw
<mirq-linux@rere.qmqm.pl> that it is always set by network code now.

(cherry picked from commit 6a864abbcea970de2ac3afaf530c44548e9d42a0)
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: PFC not cleared on X540 devices
John Fastabend [Thu, 21 Jul 2011 22:43:29 +0000 (22:43 +0000)]
ixgbe: PFC not cleared on X540 devices

X540 devices do not clear PFC before sets. This results in
the device possibly responding to PFC frames that the user
has disabled. Although it would also be wrong for the peer
to be transmitting these frames. Now we clear the register
before set.

(cherry picked from commit 634cdca5637475b74dbc7bd72208f5fdc5904d38)
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: consolidate, setup for multiple traffic classes
John Fastabend [Mon, 18 Jul 2011 22:38:36 +0000 (22:38 +0000)]
ixgbe: consolidate, setup for multiple traffic classes

This consolidates setup code for multiple traffic classes in
the setup_tc routine.

Prep work to allow IEEE DCBX to optimize for number of traffic
classes. Also simplifies code paths.

(cherry picked from commit e7589eab92919483d624eb3356cf3ac80efc0790)
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: remove unneeded fdir pb alloc case
John Fastabend [Mon, 18 Jul 2011 22:38:30 +0000 (22:38 +0000)]
ixgbe: remove unneeded fdir pb alloc case

The packet buffer is correctly allocated by generic pb allocation
path in ixgbe_configure() there is no need to do the allocation
here as well.

(cherry picked from commit 6172207634b9259bc57ebde158bb7a7313e31335)
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: fixup remaining call sites for arbitrary TCs
John Fastabend [Mon, 18 Jul 2011 22:38:25 +0000 (22:38 +0000)]
ixgbe: fixup remaining call sites for arbitrary TCs

One existing call sites still expect either 4 or 8 traffic
classes to be specified. This fixes this allowing arbitrary
values up to 8 to work as expected.

(cherry picked from commit 4fa2e0e178b23819283839b64dcb56f0f259ba39)
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: Always tag VLAN tagged packets
Alexander Duyck [Wed, 20 Jul 2011 00:09:10 +0000 (00:09 +0000)]
ixgbe: Always tag VLAN tagged packets

This change is meant to fix the patch:
ixgbe: Cleanup FCOE and VLAN handling in xmit_frame_ring
And can be rolled into it if needed.

What this fixes is that VLAN tagged packets were not being tagged if they
were prio 7 which matches up with TC_PRIO_CONTROL.  In order to fix it I am
just setting things up so that we always tag VLAN tagged packets.

(cherry picked from commit 09dca476e3201baac2dcbddc857b83aa25cbdf2e)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: Add support for setting CC bit when SR-IOV is enabled
Alexander Duyck [Wed, 29 Jun 2011 05:43:27 +0000 (05:43 +0000)]
ixgbe: Add support for setting CC bit when SR-IOV is enabled

This change makes it so that the CC bit in the descriptor is set when
SR-IOV is enabled.  This is needed in order to support offloading
functionality when passing traffic over the internal TX switch.

(cherry picked from commit 7f9643fd773a372a5470ed2daedaec5bac918e35)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: convert rings from q_vector bit indexed array to linked list
Alexander Duyck [Fri, 15 Jul 2011 03:05:21 +0000 (03:05 +0000)]
ixgbe: convert rings from q_vector bit indexed array to linked list

This change converts the current bit array into a linked list so that the
q_vectors can simply go through ring by ring and locate each ring needing
to be cleaned.

(cherry picked from commit efe3d3c8ee6805c7e8b17f9aae554c04b271ab99)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: Simplify transmit cleanup path
Alexander Duyck [Fri, 15 Jul 2011 03:05:14 +0000 (03:05 +0000)]
ixgbe: Simplify transmit cleanup path

This patch helps to simplify the work being done by the transmit path by
removing the unnecessary compares between count and the work limit.  Instead
we can simplify this by just adding a budget value that will act as a count
down from the work limit value.

(cherry picked from commit 30065e63d8366b6ea4c8962fa255adfac157ce06)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: Cleanup FCOE and VLAN handling in xmit_frame_ring
Alexander Duyck [Wed, 29 Jun 2011 05:43:22 +0000 (05:43 +0000)]
ixgbe: Cleanup FCOE and VLAN handling in xmit_frame_ring

This change is meant to further cleanup the transmit path by streamlining
some of the VLAN and FCOE/DCB tasks in the transmit path.  In addition it
adds code for support software VLANs in the event that they are used in
conjunction with DCB and/or FCOE.

(cherry picked from commit 66f32a8b97f11ad73d2e7b8c192c55febb20b425)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: replace reference to CONFIG_FCOE with IXGBE_FCOE
Alexander Duyck [Fri, 15 Jul 2011 02:31:30 +0000 (02:31 +0000)]
ixgbe: replace reference to CONFIG_FCOE with IXGBE_FCOE

CONFIG_FCOE is not the correct define to check since it is possible for it
to be CONFIG_FCOE_MODULE, as such the reference to it should be replaced
with IXGBE_FCOE.

(cherry picked from commit 971060b1066fef53e0b2eacece2f6d092d716d15)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe - DDP last user buffer - error to warn
Amir Hanania [Thu, 28 Apr 2011 08:47:23 +0000 (08:47 +0000)]
ixgbe - DDP last user buffer - error to warn

Change the error message in the last DDP user buffer to warn_once

(cherry picked from commit 0ebafd86656e5b74abb7b7c2a9b5b8458e836532)
Signed-off-by: Amir Hanania <amir.hanania@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: remove unused fcoe.tc field and fcoe_setapp()
John Fastabend [Sat, 18 Jun 2011 07:39:58 +0000 (07:39 +0000)]
ixgbe: remove unused fcoe.tc field and fcoe_setapp()

The fcoe.tc field is no longer used so remove it. After
the field is removed there is no need to keep fcoe_setapp()
around so remove it as well. And finally we can get rid
of some DCB #ifdef's in the fcoe code.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 3b3bf3b92b313db62a07869a649533f7f4f25c24)

Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: complete FCoE initialization from setapp() routine
John Fastabend [Sat, 18 Jun 2011 07:39:52 +0000 (07:39 +0000)]
ixgbe: complete FCoE initialization from setapp() routine

Commit,

commit c8ca76ebc6e50752c5311b92bb9aef7edb324577
Author: John Fastabend <john.r.fastabend@intel.com>
Date:   Sat Mar 12 03:50:53 2011 +0000

    ixgbe: DCB, further cleanups to app configuration

Removed the getapp() routines from ixgbe because they are no
longer needed. It also allowed the set hardware routines to
use both IEEE 802.1Qaz app types and CEE app types. This
added code to do bit shifting in the IEEE case.

This patch reverts the checks and handles the IEEE case
from the setapp entry point. I prefer this because it
keeps the two paths from having to be aware of the DCB
mode. This resolves a bug where I missed setting the
selector bit in the IEEE spec value and left it in the
CEE value. Now that they are separate routines these types
of errors should not occur.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 9372453e87560f1602815bf08b9e2af0f5136a61)

Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: DCB, remove unneeded ixgbe_dcb_txq_to_tc() routine
John Fastabend [Tue, 26 Apr 2011 07:26:36 +0000 (07:26 +0000)]
ixgbe: DCB, remove unneeded ixgbe_dcb_txq_to_tc() routine

The ixgbe_dcb_txq_to_tc() routine was used to map TX rings to
a DCB traffic class. Now that a tx_ring has a DCB traffic class
associated with it this routine is no longer needed.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit fb5475ff7f2e80e920a393d18a43b64124a30270)

Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgb: Remove unnecessary defines, use pr_debug
Joe Perches [Wed, 8 Feb 2012 16:14:59 +0000 (16:14 +0000)]
ixgb: Remove unnecessary defines, use pr_debug

Use the current logging styles.

Remove unnecessary _DEBUG_DRIVER_ and PFX, use pr_debug.
Coalesce format.

(cherry picked from commit 5edc4465826bf5be4da678822b0c0e35666b6d67)
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgb: finish conversion to ndo_fix_features
Michał Mirosław [Fri, 23 Sep 2011 02:11:30 +0000 (02:11 +0000)]
ixgb: finish conversion to ndo_fix_features

Finish conversion to unified ethtool ops: convert get_flags.

(cherry picked from commit f04ea74e8aa5b95610bcd2fcb110ffa2ec665dcc)
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgb: eliminate checkstack warnings
Jesse Brandeburg [Fri, 23 Sep 2011 02:11:29 +0000 (02:11 +0000)]
ixgb: eliminate checkstack warnings

Really trivial fix, use kmalloc/kfree instead of stack space.
use static const instead of const to further reduce stack usage.

V2: reflect changes suggested by Joe Perches

before:
[jbrandeb@jbrandeb-mobl2 linux-2.6]$ make checkstack|grep '\[ixgb\]'
0x00000fc1 ixgb_set_multi [ixgb]:                       768
0x00001031 ixgb_set_multi [ixgb]:                       768
0x000010f2 ixgb_set_multi [ixgb]:                       768
0x061c ixgb_check_options [ixgb]:                       448
0x09c3 ixgb_check_options [ixgb]:                       448
0x0000649e ixgb_set_ringparam [ixgb]:                   192
0x0000130d ixgb_xmit_frame [ixgb]:                      184
0x000019e0 ixgb_xmit_frame [ixgb]:                      184
0x00002267 ixgb_clean [ixgb]:                           152
0x00002673 ixgb_clean [ixgb]:                           152

after:
0x000064ee ixgb_set_ringparam [ixgb]:                   192
0x0000135d ixgb_xmit_frame [ixgb]:                      184
0x00001a30 ixgb_xmit_frame [ixgb]:                      184
0x000022b7 ixgb_clean [ixgb]:                           152
0x000026c3 ixgb_clean [ixgb]:                           152

(cherry picked from commit ac5ac789ebcf5b27e9edc231f6d33c92d722c607)
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgb: convert to ndo_fix_features
Michał Mirosław [Wed, 8 Jun 2011 08:39:40 +0000 (08:39 +0000)]
ixgb: convert to ndo_fix_features

Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM.
Removing this needs deeper surgery.

Things noticed:
 - ixgb has RX csum disabled by default
 - HW VLAN acceleration probably can be toggled, but it's left as is
 - the resets on RX csum offload change can probably be avoided
 - there is A LOT of copy-and-pasted code here

(cherry picked from commit d7ccb8c2f2f73a9fcdb8fb0f3bcdd09746f3a9ef)
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: fix the bug when initializing the igbvf
Samuel Liao [Fri, 27 Apr 2012 17:09:27 +0000 (17:09 +0000)]
igbvf: fix the bug when initializing the igbvf

Maybe it's a typo, but it cause that igbvf can't be initialized successfully.
Set perm_addr value using valid dev_addr, although which is equal to hw.mac.addr.

(cherry picked from commit 9bd1be457d2b9568c3c8f8f6b8e450a501bff402)
Signed-off-by: Samuel Liao <samuelliao@tencent.com>
Signed-off-by: Shan Wei <davidshan@tencent.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agorename dev_hw_addr_random and remove redundant second
Joe Jin [Thu, 17 May 2012 13:35:55 +0000 (21:35 +0800)]
rename dev_hw_addr_random and remove redundant second

Renamed dev_hw_addr_random to eth_hw_addr_random() to reflect that
this function only assign a random ethernet address (MAC). Removed
the second parameter (u8 *hwaddr), it's redundant since the also
given net_device already contains net_device->dev_addr.
Set it directly.

Adapt igbvf and ixgbevf to the changed function.

Small fix for ixgbevf_probe(): if ixgbevf_sw_init() fails
(which means the device got no dev_addr) handle the error and
jump to err_sw_init as already done by igbvf in similar case.

(cherry picked from commit 1a0d6ae5795c376bae6d012fb25e8341e4c6d5f2)
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbevf: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 19:38:18 +0000 (19:38 +0000)]
ixgbevf: Convert printks to pr_<level>

Based on the original patch from Joe Perches <joe@perches.com>

Use the current logging styles, prefix output with "ixgbevf: "

Add #define pr_fmt
Coalesce formats.

-v2 Fix-up to make checkpatch.pl compliant and remove change to
    copyright line

CC: Joe Perches <joe@perches.com>
(cherry picked from commit dbd9636e281895cd3a15682f0966fb545ddff9e8)
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Use ETH_ALEN
Joe Perches [Sun, 18 Mar 2012 17:37:58 +0000 (17:37 +0000)]
igbvf: Use ETH_ALEN

Remove an unnecessary #define and use memcpy
instead of a loop to copy an ethernet address.

(cherry picked from commit 449e39d9d7a889f4467ca7c590390e4a0f610b70)
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: reset netdevice addr_assign_type if changed
Danny Kukawka [Fri, 17 Feb 2012 05:43:26 +0000 (05:43 +0000)]
igbvf: reset netdevice addr_assign_type if changed

Reset the state of addr_assign_type to NET_ADDR_PERM as soon as
the MAC get changed via .ndo_set_mac_address.

v2: use bitops to reset addr_assign_type

(cherry picked from commit 067fb4c81944f8965a08cd91c0a1d66ccd09feea)
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: refactor Interrupt Throttle Rate code
Mitch A Williams [Sat, 14 Jan 2012 08:10:50 +0000 (08:10 +0000)]
igbvf: refactor Interrupt Throttle Rate code

The existing ITR code is broken and confusing, with lots of similarly-named
variables that do different things. Additionally, after the driver carefully
determines the optimal interrupt rate for the adapter, it then
ignores it and always writes a fixed, suboptimal value.

This patch refactors that code to make variable names more descriptive of
what they actually do, and then actually writes the calculated result to
the hardware.

Preliminary testing shows that netperf TCP_STREAM tests goes from ~918Mbps
to ~940Mbps, and TCP_RR goes from ~2k transactions/sec up to > 8k.

(cherry picked from commit ab50a2a430693b0961dc7b7d9fe2a4bd77d11ea6)
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Robert E Garrett <robertX.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: change copyright date
Mitch A Williams [Tue, 17 Jan 2012 04:09:05 +0000 (04:09 +0000)]
igbvf: change copyright date

Change copyright date to 2012 in the source files.

(cherry picked from commit 2a06ed9297e927bb928897661940c47ea4f41707)
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Robert E Garrett <robertX.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Remove unnecessary irq disable/enable
Joe Jin [Thu, 17 May 2012 13:24:05 +0000 (21:24 +0800)]
igbvf: Remove unnecessary irq disable/enable

This irq disable/enable pair used to wrap access to the driver's vlgrp
struct, which is no longer present. So, then, this could also so no longer
be present.

(backeded from commit 56b68960ce996db7947440179cc153652a504e9a)
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: remove unneeded cast
Stephen Hemminger [Wed, 18 Jan 2012 22:13:28 +0000 (22:13 +0000)]
igbvf: remove unneeded cast

The cast and comment are unnecessary in the current upstream kernel.

(cherry picked from commit b2f0f6bb874df645766930e0f023a208d93c12cd)
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Garrett, RobertX E <robertx.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 19:42:26 +0000 (19:42 +0000)]
igbvf: Convert printks to pr_<level>

Based on the previous patch from Joe Perches <joe@perches.com>

Use current logging styles.

Prefix all output via #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Neaten link status dev_info.

-v2 Remove Copyright changes and fix-up patch to make it checkpatch.pl
    compliant.

CC: Joe Perches <joe@perches.com>
(cherry picked from commit a4ba8cbeeb07f7bc8f9bcbd3f9962adb50376034)
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Bump version number
Williams, Mitch A [Tue, 18 Oct 2011 06:39:43 +0000 (06:39 +0000)]
igbvf: Bump version number

(cherry picked from commit 7d94eb84f3cc6557870a5bc5aa63cf6dde801fa7)
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Update module identification strings
Williams, Mitch A [Tue, 18 Oct 2011 06:39:37 +0000 (06:39 +0000)]
igbvf: Update module identification strings

Update adapter identification strings to properly indicate i350 VF devices
in the VF driver. Change the driver ID string to remove 82576-specific
wording. Update copyright date.

(cherry picked from commit 10090751c009f4b21a12cd64e96376757563fd4b)
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: fix truesize underestimation
Eric Dumazet [Thu, 20 Oct 2011 09:22:18 +0000 (09:22 +0000)]
igbvf: fix truesize underestimation

igbvf allocates half a page per skb fragment. We must account
PAGE_SIZE/2 increments on skb->truesize, not the actual frag length.

(cherry picked from commit 7b8b59617ead5acc6ff041a9ad2ea1fe7a58094f)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: Fix trunk vlan
Greg Rose [Sat, 27 Aug 2011 06:24:59 +0000 (06:24 +0000)]
igbvf: Fix trunk vlan

Changes to clean up the VLAN Rx path by Jiri Pirko broke trunk VLAN.
Trunk VLANs in a VF driver are those set using

"ip link set <pfdev> vf <n> <vlanid>"

(cherry picked from commit 4d2d55ac94f52ea8787270ec29579ced83f5f96b)
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
CC: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigbvf: convert to ndo_fix_features
Michał Mirosław [Tue, 30 Aug 2011 17:07:11 +0000 (17:07 +0000)]
igbvf: convert to ndo_fix_features

Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM.
Removing this needs deeper surgery.

Things noticed:
 - HW VLAN acceleration probably can be toggled, but it's left as is
 - the resets on RX csum offload change can probably be avoided
 - there is A LOT of copy-and-pasted code here

(cherry picked from commit fd38f734cb8200529e281338514945fcbff2364b)
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix rtnl race in PM resume path
Benjamin Poirier [Thu, 10 May 2012 15:38:37 +0000 (15:38 +0000)]
igb: fix rtnl race in PM resume path

Since the caller (PM resume code) is not the one holding rtnl, when taking the
'else' branch rtnl may be released at any moment, thereby defeating the whole
purpose of this code block.

(cherry picked from commit cfb8c3aa59302636c69890be10b2ef23a7ca83b2)
Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix warning about unused function
Emil Tantilov [Sat, 28 Jan 2012 08:10:35 +0000 (08:10 +0000)]
igb: fix warning about unused function

This patch fixes a warning about unused function when CONFIG_PM_SLEEP
is not selected in the kernel config:

igb_main.c: warning: `igb_suspend` defined but not used [W-unused-function]

(cherry picked from commit d9dd966d7fc088a6bed991c2b1e2fba4485e0a31)
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix vf lookup
Greg Rose [Thu, 2 Feb 2012 23:51:43 +0000 (23:51 +0000)]
igb: fix vf lookup

Recent addition of code to find already allocated VFs failed to take
account that systems with 2 or more multi-port SR-IOV capable controllers
might have already enabled VFs.  Make sure that the VFs the function is
finding are actually subordinate to the particular instance of the adapter
that is looking for them and not subordinate to some device that has
previously enabled SR-IOV.

This is applicable to 3.2+ kernels.

CC: stable@vger.kernel.org
Reported-by: David Ahern <daahern@cisco.com>
(cherry picked from commit 0629292117572a60465f38cdedde2f8164c3df0b)
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Robert E Garrett <robertX.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Update Copyright on all Intel copyrighted files.
Carolyn Wyborny [Wed, 18 Jan 2012 22:13:27 +0000 (22:13 +0000)]
igb: Update Copyright on all Intel copyrighted files.

(cherry picked from commit 6e861326b1d78bb439c0724864a6ca83ec23d289)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: make local functions static
Stephen Hemminger [Wed, 18 Jan 2012 22:13:26 +0000 (22:13 +0000)]
igb: make local functions static

Sparse caught two functions that were only being used in one file.

(cherry picked from commit c50b52a0c7ec8522983f5021c0b0952b4d678adf)
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: reset PHY after recovering from PHY power down
Koki Sanagi [Wed, 4 Jan 2012 20:23:38 +0000 (20:23 +0000)]
igb: reset PHY after recovering from PHY power down

According to 82576_Datasheet.pdf, PHY setting is lost after PHY power down.
So resetting PHY is needed when recovering from PHY power down to set a default
setting to PHY register.
Owing to this lack, NIC doesn't link up in some rare situation.

(cherry picked from commit a95a07445ee97a2fef65befafbadcc30ca1bd145)
Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: add basic runtime PM support
Yan, Zheng [Wed, 4 Jan 2012 20:23:37 +0000 (20:23 +0000)]
igb: add basic runtime PM support

Use the runtime power management framework to add basic runtime PM support
to the igb driver. Namely, make the driver suspend the device when the link
is off and set it up for generating a wakeup event after the link has been
detected again. This feature is disabled by default.

Based on e1000e's runtime PM code.

Changes since v1:
Don't suspend the device when shutting down the interface.
Avoid race between runtime suspending and ethtool operations.

(cherry picked from commit 749ab2cd127046df79084b6b9165b23491b1db5f)
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Add flow control advertising to ethtool setting.
Carolyn Wyborny [Fri, 2 Dec 2011 00:03:15 +0000 (00:03 +0000)]
igb: Add flow control advertising to ethtool setting.

Added pause flag for bi-directional flow control advertising to ethtool
settings.

(cherry picked from commit f83396ad8318db0d5e55756a496af61a217bbfda)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Update DMA Coalescing threshold calculation.
Matthew Vick [Thu, 17 Nov 2011 08:33:12 +0000 (08:33 +0000)]
igb: Update DMA Coalescing threshold calculation.

This patch updates the DMA Coalescing feature parameters to account for
larger MTUs. Previously, sufficient space may not have been allocated in
the receive buffer, causing packet drop.

(cherry picked from commit e8c626e9d8e99fdffd8af0e535ed5ac76ed356db)
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Convert bare printk to pr_notice
Joe Perches [Fri, 21 Oct 2011 20:04:09 +0000 (20:04 +0000)]
igb: Convert bare printk to pr_notice

printks should use KERN_ levels.

(cherry picked from commit 82bbcdebbac75bf7636bf63ac0e6e4a49b128978)
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 20:01:34 +0000 (20:01 +0000)]
igb: Convert printks to pr_<level>

Based on original patch from Joe Perches <joe@perches.com>

Use the current logging styles.

pr_<level> conversions are now prefixed with "igb: "

Correct a defect where the trailing NTU may have been printed
on a separate line because of an interleaving hex_dump.

Remove unnecessary uses of KERN_CONT and use single pr_info()s
to avoid any possible output interleaving from other modules.

Coalesce formats as appropriate.

-v2 fix-up to make checkpatch.pl compliant and remove change to
    the copyright line

CC: Joe Perches <joe@perches.com>
(cherry picked from commit 876d2d6f6e60b1170f7ed664b9659def92b87be3)
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Fix for I347AT4 PHY cable length unit detection
Kantecki, Tomasz [Mon, 17 Oct 2011 22:06:59 +0000 (22:06 +0000)]
igb: Fix for I347AT4 PHY cable length unit detection

The PHY cable length unit detection was not using the correct
the correct PHY data variable for I347AT4.

(cherry picked from commit d5a0e3640c05b7d07c548f9f8f986dbb87cfad98)
Signed-off-by: Tomasz Kantecki <tomasz.kantecki@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: VFTA Table Fix for i350 devices
Carolyn Wyborny [Fri, 14 Oct 2011 00:13:49 +0000 (00:13 +0000)]
igb: VFTA Table Fix for i350 devices

Due to a hardware problem, writes to the VFTA register can
theoretically fail. Although the likelihood of this is very low.
This patch adds a shadow vfta in the adapter struct for reading
and adds new write functions for these devices to work around the problem.

(cherry picked from commit 1128c756bef8285db3bbde5b26d4a6b4c7e2e613)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Move DMA Coalescing init code to separate function.
Carolyn Wyborny [Thu, 13 Oct 2011 17:29:59 +0000 (17:29 +0000)]
igb: Move DMA Coalescing init code to separate function.

This patch moves the DMA Coalescing feature initialization code from
igb_reset to a new function and replaces it with a call to the new
function.

(cherry picked from commit b6e0c419f040cee87813660bb4efd1fe43a8ebee)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Fix for Alt MAC Address feature on 82580 and later devices
Carolyn Wyborny [Thu, 13 Oct 2011 17:28:39 +0000 (17:28 +0000)]
igb: Fix for Alt MAC Address feature on 82580 and later devices

In 82580 and later devices, the alternate MAC address feature is
completely handled by the option ROM and software does not handle
it anymore.  This patch changes the check_alt_mac_addr function to
exit immediately if device is 82580 or later.

(cherry picked from commit 65189d284b48bd2e747e8cf9dfb0ff63b859682f)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix a compile warning
RongQing Li [Tue, 18 Oct 2011 22:52:35 +0000 (22:52 +0000)]
igb: fix a compile warning

control these three function declarations and
definitions with same macro CONFIG_PCI_IOV

drivers/net/igb/igb_main.c:165:
warning: ‘igb_vf_configure’ declared ‘static’ but never defined
drivers/net/igb/igb_main.c:166:
warning: ‘igb_find_enabled_vfs’ declared ‘static’ but never defined
drivers/net/igb/igb_main.c:167:
warning: ‘igb_check_vf_assignment’ declared ‘static’ but never defined

(cherry picked from commit 46a016985a442b499faa52dff7e74a79f6a22cef)
Signed-off-by: RongQing Li <roy.qing.li@gmail.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Check if subordinate VFs are assigned to virtual machines
Greg Rose [Fri, 14 Oct 2011 02:57:14 +0000 (02:57 +0000)]
igb: Check if subordinate VFs are assigned to virtual machines

Kvm and the Xen pci-back driver will set a flag in the virtual function
pci device dev_flags when the VF is assigned to a guest VM.  Before
destroying subordinate VFs check to see if the flag is set and if so
skip the call to pci_disable_sriov() to avoid system crashes.

Copy the maintainer for the Xen pci-back driver.  Also CC'ing
maintainers of all drivers found to call pci_disable_sriov().

V2 - Fix  uninitialized variable warning

Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Christian Benvenuti <benve@cisco.com>
Cc: Sathya Perla <sathya.perla@emulex.com>
Cc: Dimitris Michailidis <dm@chelsio.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: James Smart <james.smart@emulex.com>
(cherry picked from commit 0224d663063d542b3d829706f3fcbd0f640f19b3)
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agopci: Add flag indicating device has been assigned by KVM
Greg Rose [Fri, 22 Jul 2011 05:46:07 +0000 (05:46 +0000)]
pci: Add flag indicating device has been assigned by KVM

Device drivers that create and destroy SR-IOV virtual functions via
calls to pci_enable_sriov() and pci_disable_sriov can cause catastrophic
failures if they attempt to destroy VFs while they are assigned to
guest virtual machines.  By adding a flag for use by the KVM module
to indicate that a device is assigned a device driver can check that
flag and avoid destroying VFs while they are assigned and avoid system
failures.

CC: Ian Campbell <ijc@hellion.org.uk>
CC: Konrad Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 6777829cfe1c4ed78319ad40aaee60254222da76)

Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: enable l4 timestamping for v2 event packets
Jacob Keller [Wed, 12 Oct 2011 00:51:54 +0000 (00:51 +0000)]
igb: enable l4 timestamping for v2 event packets

When enabling hardware timestamping for ptp v2 event packets, the
software does not setup the queue for l4 packets, although layer 4
packets are valid for v2. This patch adds the flag which enables
setting up a queue and enabling udp packet timestamping.

(cherry picked from commit 11ba69e876e1141fa4b11a7c0efb256a8df9ae7d)
Signed-off-by: Jacob E Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix skb truesize underestimation
Eric Dumazet [Thu, 13 Oct 2011 07:56:41 +0000 (07:56 +0000)]
igb: fix skb truesize underestimation

e1000 allocates half a page per skb fragment. We must account
PAGE_SIZE/2 increments on skb->truesize, not the actual frag length.

(cherry picked from commit 95b9c1dfb7b929f5f3b203ed95c28bdfd069d122)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Version bump.
Carolyn Wyborny [Fri, 7 Oct 2011 07:00:27 +0000 (07:00 +0000)]
igb: Version bump.

This change updates the driver version to 3.2.10.

(cherry picked from commit a28dc43f1d8dfc4fe61c9b9505c1b902285c96b8)
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Loopback functionality supports for i350 devices
Akeem G. Abodunrin [Thu, 8 Sep 2011 20:39:48 +0000 (20:39 +0000)]
igb: Loopback functionality supports for i350 devices

This patch adds VMDq loopback pf support for i350 devices. The patch
is necessary since the register that enabled loopback was moved and
renamed from DTXSWC to TXSWC.

(cherry picked from commit ca2e3e7ec98937e12df4bbdcc9a367b8768290ce)
Signed-off-by: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix static function warnings reported by sparse
Emil Tantilov [Tue, 30 Aug 2011 06:35:04 +0000 (06:35 +0000)]
igb: fix static function warnings reported by sparse

igb_update/validate_nvm_checksum_with_offset() should be static.
Also removes unneeded prototypes for the above functions.

(cherry picked from commit bed45a6ed51d00007f5eb6d75560218ddcecfe51)
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Add workaround for byte swapped VLAN on i350 local traffic
Alexander Duyck [Fri, 26 Aug 2011 07:47:11 +0000 (07:47 +0000)]
igb: Add workaround for byte swapped VLAN on i350 local traffic

On i350 when traffic is looped back from a VF to the PF the value is byte
swapped from the normal format.  In order to address this we need to add a
flag indicating that the ring will need to byte swap the loopback packets
prior to processing them.

(cherry picked from commit 8be10e9130a75c49ddcffdfca74b19b1c3169230)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Drop unnecessary write of E1000_IMS from igb_msix_other
Alexander Duyck [Fri, 26 Aug 2011 07:47:01 +0000 (07:47 +0000)]
igb: Drop unnecessary write of E1000_IMS from igb_msix_other

Since we mask interrupts in EIMS not in IMS there is no need to re-enable
mask bits in that register.  As such we can remove the write to IMS from
the end of igb_msix_other.

(cherry picked from commit 9ab64ba3c74540cfb8716232834df486bcc6120d)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Fix features that are currently 82580 only and should also be i350
Alexander Duyck [Fri, 26 Aug 2011 07:46:55 +0000 (07:46 +0000)]
igb: Fix features that are currently 82580 only and should also be i350

This change allows support for per packet timesync and global device reset
on the i350 adapter.  These features were supported on both 82580 and i350
however it looks like several checks where not updated and as such the i350
support was not enabled.

(cherry picked from commit 06218a8dbf046c0e9ba51dcbe1ce980a10a0be42)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Make certain one vector is always assigned in igb_request_irq
Alexander Duyck [Fri, 26 Aug 2011 07:46:45 +0000 (07:46 +0000)]
igb: Make certain one vector is always assigned in igb_request_irq

This change makes certain that one interrupt is always initialized in
igb_request_irq.  In addition we drop the use of adapter->pdev and
instead just call pdev since we made a local copy of the pointer earlier in
the function.

(cherry picked from commit c74d588e2addd9a13cca49a4d9172e0e2948448f)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: avoid unnecessarily creating a local copy of the q_vector
Alexander Duyck [Fri, 26 Aug 2011 07:46:34 +0000 (07:46 +0000)]
igb: avoid unnecessarily creating a local copy of the q_vector

This is mostly a drop of unnecessary pointer defines for q_vector when we
don't have issues with line width and don't have multiple references to
the pointer.

(cherry picked from commit 0d1ae7f46f1b51623bed2904576d15f6ecd5dc10)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: add support for NETIF_F_RXHASH
Alexander Duyck [Fri, 26 Aug 2011 07:46:29 +0000 (07:46 +0000)]
igb: add support for NETIF_F_RXHASH

This patch adds support for Rx hashing.

(cherry picked from commit 077887c386226e4def56898449c26bb15f523728)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: move TX hang check flag into ring->flags
Alexander Duyck [Fri, 26 Aug 2011 07:46:19 +0000 (07:46 +0000)]
igb: move TX hang check flag into ring->flags

This change moves the Tx hang check into the ring flags.

(cherry picked from commit 6d095fa8cb1bb87fe8bf956cdf6211e784b4c9e4)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: fix recent VLAN changes that would leave VLANs disabled after reset
Alexander Duyck [Fri, 26 Aug 2011 07:46:08 +0000 (07:46 +0000)]
igb: fix recent VLAN changes that would leave VLANs disabled after reset

This patch cleans up several issues with VLANs on igb after the recent
changes that were meant to leave the VLANs enabled/disable via the
netdev->features flags.

Specifically the Rx VLAN settings were being dropped after reset due to the
fact that they were not being restored correctly.  In addition I removed
the IRQ disable/enable since those were in place to protect the setting of
vlgrp.

(cherry picked from commit 5faf030c9b6cc48c33301b4f3341f2b5c374f6b5)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: leave staterr in place and instead us a helper function to check bits
Alexander Duyck [Fri, 26 Aug 2011 07:46:03 +0000 (07:46 +0000)]
igb: leave staterr in place and instead us a helper function to check bits

Instead of doing a byte swap on the staterr bits in the Rx descriptor we can
save ourselves a bit of space and some CPU time by instead just testing for
the various bits out of the Rx descriptor directly.

(cherry picked from commit 3ceb90fd4898853cdac43084f0c6ee7270cb15f3)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: retire the RX_CSUM flag and use the netdev flag instead
Alexander Duyck [Fri, 26 Aug 2011 07:45:57 +0000 (07:45 +0000)]
igb: retire the RX_CSUM flag and use the netdev flag instead

Since the netdev now has its' own checksum flag to indicate if Rx checksum
is enabled we might as well use that instead of using the ring flag.

(cherry picked from commit 294e7d78f5b929536b81620ed33c6507f2921463)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: cleanup IVAR configuration
Alexander Duyck [Fri, 26 Aug 2011 07:45:52 +0000 (07:45 +0000)]
igb: cleanup IVAR configuration

This change is meant to cleanup some of the IVAR register configuration.
igb_assign_vector had become pretty large with multiple copies of the same
general code for setting the IVAR. This change consolidates most of that
code by adding the igb_write_ivar function which allows us just to compute
the index and offset and then use that information to setup the IVAR.

(cherry picked from commit 4be000c874576541cd1d4d0498a0a72a1c60bf0b)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Move ITR related data into work container within the q_vector
Alexander Duyck [Fri, 26 Aug 2011 07:45:47 +0000 (07:45 +0000)]
igb: Move ITR related data into work container within the q_vector

This change moves information related to interrupt throttle rate
configuration into a separate q_vector sub-structure called a work
container. A similar change has already been made for ixgbe and this work
is based off of that.

(cherry picked from commit 0ba829943c5180d458cd8fc37c37fa08773209e1)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Consolidate all of the ring feature flags into a single value
Alexander Duyck [Fri, 26 Aug 2011 07:45:36 +0000 (07:45 +0000)]
igb: Consolidate all of the ring feature flags into a single value

This change moves all of the ring flags into a single value.  The advantage
to this is that there is one central area for all of these flags and they
can all make use of the set/test bit operations.

(cherry picked from commit 866cff06903ed63b7410c75ce8d4e0c86127a563)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: avoid unnecessary conversions from u16 to int
Alexander Duyck [Fri, 26 Aug 2011 07:45:26 +0000 (07:45 +0000)]
igb: avoid unnecessary conversions from u16 to int

There are a number of places where we have values that are stored as u16
but are being converted to int unnecessarily.  In order to avoid that we
should convert all variables that deal with the next_to_clean, next_to_use,
and count to u16 values.

(cherry picked from commit 6ad4edfcd7b6321da34e7cd0c88dd97adddd7f57)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Use node specific allocations for the q_vectors and rings
Alexander Duyck [Fri, 26 Aug 2011 07:45:20 +0000 (07:45 +0000)]
igb: Use node specific allocations for the q_vectors and rings

This change is meant to update the ring and vector allocations so that they
are per node instead of allocating everything on the node that
ifconfig/modprobe is called on.  By doing this we can cut down
significantly on cross node traffic.

(cherry picked from commit 81c2fc22323f461aee30cf7028a79eb67426e4b6)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: push data into first igb_tx_buffer sooner to reduce stack usage
Alexander Duyck [Fri, 26 Aug 2011 07:45:15 +0000 (07:45 +0000)]
igb: push data into first igb_tx_buffer sooner to reduce stack usage

Instead of storing most of the data for the TX hot path in the stack until
we are ready to write the descriptor we can save ourselves some time and
effort by pushing the SKB, tx_flags, gso_size, bytecount, and protocol into
the first igb_tx_buffer since that is where we will end up putting it
anyway.

(cherry picked from commit 7af40ad909e3e92a1cbb728999c427d2fa3b381d)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: consolidate creation of Tx buffer info and data descriptor
Alexander Duyck [Fri, 26 Aug 2011 07:45:09 +0000 (07:45 +0000)]
igb: consolidate creation of Tx buffer info and data descriptor

This change will combine the writes of tx_buffer_info and the Tx data
descriptors into a single function. The advantage of this is that we can
avoid needless memory reads from the buffer info struct and speed things up
by keeping the accesses to the local registers.

(cherry picked from commit ebe42d169bd0b4c3e2e355374d07ba7d51744601)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Combine all flag info fields into a single tx_flags structure
Alexander Duyck [Fri, 26 Aug 2011 07:44:59 +0000 (07:44 +0000)]
igb: Combine all flag info fields into a single tx_flags structure

This change is meant to combine all of the TX flags fields into one u32
flags field so that it can be stored into the tx_buffer_info structure.
This includes the time stamp flag as well as mapped_as_page flag info.

(cherry picked from commit 2bbfebe2db3453f9ad5a3de56b77d383b91a7829)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Cleanup protocol handling in transmit path
Alexander Duyck [Fri, 26 Aug 2011 07:44:53 +0000 (07:44 +0000)]
igb: Cleanup protocol handling in transmit path

This change is meant to cleanup the protocol handling in the transmit path
so that it correctly offloads software VLAN tagged frames.

(cherry picked from commit 31f6adbb352ae118550ab51f2a5ed1023ec7eb03)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Create separate functions for generating cmd_type and olinfo
Alexander Duyck [Fri, 26 Aug 2011 07:44:48 +0000 (07:44 +0000)]
igb: Create separate functions for generating cmd_type and olinfo

This change is meant to improve the readability of the driver by separating
out the cmd_type configuration and the olinfo configuration into their own
functions.  By doing this it is much easier to determine which ingredients
go into setting up these to portions of the descriptor.

(cherry picked from commit e032afc80ca16e6b62cfe5938977bf678eec0dd0)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Make first and tx_buffer_info->next_to_watch into pointers
Alexander Duyck [Fri, 26 Aug 2011 07:44:43 +0000 (07:44 +0000)]
igb: Make first and tx_buffer_info->next_to_watch into pointers

This change converts two tx_buffer_info index values into pointers.  The
advantage to this is that we reduce unnecessary computations and in the case
of next_to_watch we get an added bonus of the value being able to provide
additional information as a NULL value indicates it is unset versus a 0 not
having any meaning for the index value.

(cherry picked from commit 8542db05dbc99f603889c349e5cf8f3f81cddbf5)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Consolidate creation of Tx context descriptors into a single function
Alexander Duyck [Fri, 26 Aug 2011 07:44:32 +0000 (07:44 +0000)]
igb: Consolidate creation of Tx context descriptors into a single function

This patch is meant to simplify the transmit path by reducing the overhead
for creating a transmit context descriptor.  The current implementation is
split with igb_tso and igb_tx_csum doing two separate implementations on
how to setup the tx_buffer_info structure and the tx_desc.  By combining
them it is possible to reduce code and simplify things since now only one
function will create context descriptors.

(cherry picked from commit 7d13a7d0da74d127457cc6f88e47fd8e85960a13)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agointel: convert to SKB paged frag API.
Ian Campbell [Mon, 29 Aug 2011 23:18:26 +0000 (23:18 +0000)]
intel: convert to SKB paged frag API.

(cherry picked from commit 877749bf3f2f7a517ae74cd2c2fa4eed7aa9b51d)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Cc: Alex Duyck <alexander.h.duyck@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoixgbe: Refactor transmit map and cleanup routines
Alexander Duyck [Fri, 15 Jul 2011 02:31:25 +0000 (02:31 +0000)]
ixgbe: Refactor transmit map and cleanup routines

This patch implements a partial refactor of the TX map/queue and cleanup
routines.  It merges the map and queue functionality and as a result
improves the transmit performance by avoiding unnecessary reads from memory.

(cherry picked from commit d3d0023979c87ee00f61946deb08b6a1ebd0455d)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: split buffer_info into tx_buffer_info and rx_buffer_info
Alexander Duyck [Fri, 26 Aug 2011 07:44:22 +0000 (07:44 +0000)]
igb: split buffer_info into tx_buffer_info and rx_buffer_info

In order to be able to improve the performance of the TX path it has been
necessary to add addition info to the tx_buffer_info structure.  However a
side effect is that the structure has gotten larger and this in turn has
also increased the size of the RX buffer info structure.  In order to avoid
this in the future I am splitting the single buffer_info structure into two
separate ones and instead I will join them by making the buffer_info
pointer in the ring a union of the two.

(cherry picked from commit 0603464956e863810af60c08b4b2e8ab50363a54)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Make Tx budget for NAPI user adjustable
Alexander Duyck [Wed, 5 Oct 2011 13:35:24 +0000 (13:35 +0000)]
igb: Make Tx budget for NAPI user adjustable

This change is to make the NAPI budget limits for transmit
adjustable.  Currently they are only set to 128, and when
the changes/improvements to NAPI occur to allow for adjustability,
it would be possible to tune the value for optimal
performance with applications such as routing.

v2: remove tie between NAPI and interrupt moderation
    fix work limit define name (s/IXGBE/IGB/)
    Update patch description to better reflect patch

(cherry picked from commit 13fde97a48b622a192ae7d0a8011248be891cdd4)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Alternate MAC Address Updates for Func2&3
Akeem G. Abodunrin [Fri, 2 Sep 2011 23:09:30 +0000 (23:09 +0000)]
igb: Alternate MAC Address Updates for Func2&3

Only function 1 has support for Alternate MAC Address in the EEPROM before,
this update now allow function 2 and 3 to have support for Alternate MAC
Address in the EEPROM.

(cherry picked from commit 45b58465acaa9d98354e7fa730e3172c5355da06)
Signed-off-by: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Alternate MAC Address EEPROM Updates
Akeem G. Abodunrin [Fri, 2 Sep 2011 23:08:55 +0000 (23:08 +0000)]
igb: Alternate MAC Address EEPROM Updates

This code check word 0x37 in the EEPROM, if it is 0xFFFF _or_ 0x0000, then
there is no Alternate MAC Address in the EEPROM.

(cherry picked from commit 6538ee62d597ca09035c33838d7516455f4fd3e1)
Signed-off-by: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Code to prevent overwriting SFP I2C
Akeem G. Abodunrin [Fri, 2 Sep 2011 23:11:19 +0000 (23:11 +0000)]
igb: Code to prevent overwriting SFP I2C

This patch fixes "overwrite" problem. without this fix, SFP I2C EEPROM
data, which is located at A0 can be overwritten by the phy write function.

(cherry picked from commit 76d06521f514e4e7e6bfb848ef0e3f8eb421f46d)
Signed-off-by: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Remove multi_tx_table and simplify igb_xmit_frame
Alexander Duyck [Fri, 26 Aug 2011 07:44:10 +0000 (07:44 +0000)]
igb: Remove multi_tx_table and simplify igb_xmit_frame

Instead of using the multi_tx_table to map possible Tx queues to Tx rings
we can just do simple subtraction for the unlikely event that the Tx queue
provided exceeds the number of Tx rings.

(cherry picked from commit 1cc3bd879288c7f2f47eaebdde38ac5db4bfd082)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: drop the "adv" off function names relating to descriptors
Joe Jin [Thu, 17 May 2012 08:55:55 +0000 (16:55 +0800)]
igb: drop the "adv" off function names relating to descriptors

Many of the function names in the hot path are carrying an extra "_adv"
suffix on the end of them to represent the fact that they are using
advanced descriptors instead of legacy descriptors.  However since all igb
uses are advanced descriptors adding the extra suffix doesn't really add
any additional data.  Since this is the case it is easiest to just drop the
suffix and save us from having to store the extra characters.

(backported from commit cd392f5ca976b5ad166acc368c239cce2f0df58a)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC
Alexander Duyck [Fri, 26 Aug 2011 07:44:05 +0000 (07:44 +0000)]
igb: Replace E1000_XX_DESC_ADV with IGB_XX_DESC

Since igb only uses advanced descriptors we might as well just use an IGB
specific define and drop the _ADV suffix for the descriptor declarations.
In addition this can be further reduced by assuming that it will be working
on pointers since that is normally how the Tx descriptors are handled.

(cherry picked from commit 6013690699dd8316f4018324a6c2d90377d50d2c)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Refactor clean_rx_irq to reduce overhead and improve performance
Alexander Duyck [Fri, 26 Aug 2011 07:43:54 +0000 (07:43 +0000)]
igb: Refactor clean_rx_irq to reduce overhead and improve performance

This change is meant to be a general cleanup and performance improvement
for clean_rx_irq.  The previous patch should have updated the allocation so
that the rings can be treated as read-only within the clean_rx_irq
function.  In addition I am re-ordering the operations such that several
goals are accomplished including reducing the overhead for packet
accounting, reducing the number of items on the stack, and improving
overall performance.

(cherry picked from commit 16eb8815c2355b50bff218513367778e6303e9f9)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: update ring and adapter structure to improve performance
Alexander Duyck [Fri, 26 Aug 2011 07:43:48 +0000 (07:43 +0000)]
igb: update ring and adapter structure to improve performance

This change is meant to improve performance by splitting the Tx and Rx
rings into 3 sections.  The first is primarily a read only section
containing basic things like the indexes, a pointer to the dev and netdev
structures, and basic information.  The second section contains the stats
and next_to_use and next_to_clean values.  The third section is primarily
unused values that can just be placed at the end of the ring and are not
used in the hot path.

The adapter structure has several sections that are read in the hot path.
In order to improve performance there I am combining the frequent read
hot path items into a single cache line.

(cherry picked from commit 238ac817fd23f7dd5f61a8c51b4678f8d199db57)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: streamline Rx buffer allocation and cleanup
Alexander Duyck [Fri, 26 Aug 2011 07:43:43 +0000 (07:43 +0000)]
igb: streamline Rx buffer allocation and cleanup

This change is meant to streamline the Rx buffer allocation and cleanup.
This is accomplished by reducing the number of writes by only having the Rx
descriptor ring written by software during allocation, and it will only be
read during cleanup.

(cherry picked from commit c023cd8898dbee857c8e82b357b4e68dc2d9561d)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: drop support for single buffer mode
Alexander Duyck [Fri, 26 Aug 2011 07:43:38 +0000 (07:43 +0000)]
igb: drop support for single buffer mode

This change removes support for single buffer mode from igb and makes the
driver function in packet split always.  The advantage to doing this is
that we can reduce total memory allocation overhead significantly as we
will only need to allocate one 1K slab per packet and then make use of a
reusable half page instead of allocating a 2K slab per packet.

(cherry picked from commit 44390ca6cb3d4d3c7c4078bafde11073b5268150)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Update max_frame_size to account for an optional VLAN tag if present
Alexander Duyck [Fri, 26 Aug 2011 07:43:32 +0000 (07:43 +0000)]
igb: Update max_frame_size to account for an optional VLAN tag if present

This patch modifies the max_frame_size in order account for an optional
VLAN tag.  In order to support this we must also increase the
MAX_STD_JUMBO_FRAME_SIZE to account for the 4 extra bytes.

(cherry picked from commit 153285f9ce88b2d37e29a351dfcf7601ff274c69)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Update RXDCTL/TXDCTL configurations
Alexander Duyck [Fri, 26 Aug 2011 07:43:27 +0000 (07:43 +0000)]
igb: Update RXDCTL/TXDCTL configurations

This change cleans up the RXDCTL and TXDCTL configurations and optimizes RX
performance by allowing back write-backs on all hardware other than 82576.

(cherry picked from commit a74420e0f3bdb4bfd8b59a4e67442d642f22e5b9)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: remove duplicated #include
Huang Weiyi [Fri, 22 Jul 2011 22:20:01 +0000 (22:20 +0000)]
igb: remove duplicated #include

Remove duplicated #include('s) in
  drivers/net/igb/igb_main.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 48b03754dcdabb52bcb14f8288ca51f9bea8eb44)

Signed-off-by: Joe Jin <joe.jin@oracle.com>
13 years agoigb: Fix for DH89xxCC near end loopback test
Robert Healy [Tue, 12 Jul 2011 08:46:20 +0000 (08:46 +0000)]
igb: Fix for DH89xxCC near end loopback test

On this chipset it is required to configure the MPHY block for loopback tests. If MPHY is not configured then all loopback tests will report failures.

Signed-off-by: Robert Healy <robert.healy@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit a14bc2bb7075e59be635a2470dc0a32c5a0e8e21)

Signed-off-by: Joe Jin <joe.jin@oracle.com>