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9 years agoqede: Add basic Network driver
Yuval Mintz [Mon, 26 Oct 2015 09:02:27 +0000 (11:02 +0200)]
qede: Add basic Network driver

The Qlogic Everest Driver for Ethernet is the Ethernet specific module for
QL4xxx ethernet products by Qlogic.

This patch adds a very minimal PCI driver, one that doesn't yet register
a network device, but one that does interact with qed and does a basic
initialization of the HW.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23732603
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqed: Add basic L2 interface
Yuval Mintz [Mon, 26 Oct 2015 09:02:26 +0000 (11:02 +0200)]
qed: Add basic L2 interface

This patch adds a public API for a network driver to work on top of QED.
The interface itself is very minimal - it's mostly infrastructure, as the
only content it has after this patch is a query for HW-based information
required for the creation of a network interface [I.e., no actual
protocol-specific configurations are supported].

Signed-off-by: Manish Chopra <Manish.Chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23732603
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqed: Add module with basic common support
Yuval Mintz [Mon, 26 Oct 2015 09:02:25 +0000 (11:02 +0200)]
qed: Add module with basic common support

The Qlogic Everest Driver is the backend module for the QL4xxx ethernet
products by Qlogic.

This module serves two main purposes:
 1. It's responsible to contain all the common code that will be shared
    between the various drivers that would be used with said line of
    products. Flows such as chip initialization and de-initialization
    fall under this category.

 2. It would abstract the protocol-specific HW & FW components, allowing
    the protocol drivers to have a clean APIs which is detached in its
    slowpath configuration from the actual HSI.

This adds a very basic module without any protocol-specific bits.
I.e., this adds a basic implementation that almost entirely falls under
the first category.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23732603
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: potential NULL dereference in qlcnic_83xx_get_minidump_template()
Dan Carpenter [Tue, 10 May 2016 19:20:04 +0000 (22:20 +0300)]
qlcnic: potential NULL dereference in qlcnic_83xx_get_minidump_template()

If qlcnic_fw_cmd_get_minidump_temp() fails then "fw_dump->tmpl_hdr" is
NULL or possibly freed.  It can lead to an oops later.

Fixes: d01a6d3c8ae1 ('qlcnic: Add support to enable capability to extend minidump for iSCSI')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: protect qlicnic_attach_func with rtnl_lock
Hannes Frederic Sowa [Mon, 18 Apr 2016 19:19:46 +0000 (21:19 +0200)]
qlcnic: protect qlicnic_attach_func with rtnl_lock

qlcnic_attach_func requires rtnl_lock to be held.

Cc: Dept-GELinuxNICDev@qlogic.com
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: Update version to 5.3.64
Manish Chopra [Thu, 21 Apr 2016 17:25:20 +0000 (13:25 -0400)]
qlcnic: Update version to 5.3.64

Just updating the version as many fixes got
accumulated over 5.3.63

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: Fix mailbox completion handling during spurious interrupt
Rajesh Borundia [Tue, 8 Mar 2016 07:39:58 +0000 (02:39 -0500)]
qlcnic: Fix mailbox completion handling during spurious interrupt

o While the driver is in the middle of a MB completion processing
and it receives a spurious MB interrupt, it is mistaken as a good MB
completion interrupt leading to premature completion of the next MB
request. Fix the driver to guard against this by checking the current
state of MB processing and ignore the spurious interrupt.
Also added a stats counter to record this condition.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: Remove unnecessary usage of atomic_t
Rajesh Borundia [Tue, 8 Mar 2016 07:39:57 +0000 (02:39 -0500)]
qlcnic: Remove unnecessary usage of atomic_t

o atomic_t usage is incorrect as we are not implementing
any atomicity.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: correctly handle qlcnic_alloc_mbx_args
Insu Yun [Tue, 29 Dec 2015 20:02:18 +0000 (15:02 -0500)]
qlcnic: correctly handle qlcnic_alloc_mbx_args

Since qlcnic_alloc_mbx_args can be failed,
return value should be checked.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: constify qlcnic_dcb_ops structures
Julia Lawall [Sun, 27 Dec 2015 21:01:29 +0000 (22:01 +0100)]
qlcnic: constify qlcnic_dcb_ops structures

The qlcnic_dcb_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: fix a loop exit condition better
Dan Carpenter [Thu, 24 Dec 2015 09:21:22 +0000 (12:21 +0300)]
qlcnic: fix a loop exit condition better

In the original code, if we succeeded on the last iteration through the
loop then we still returned failure.

Fixes: 389e4e04ad2d ('qlcnic: fix a timeout loop')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: fix a timeout loop
Dan Carpenter [Tue, 15 Dec 2015 13:56:16 +0000 (16:56 +0300)]
qlcnic: fix a timeout loop

The problem here is that at the end of the loop we test for if
idc->vnic_wait_limit is zero, but since idc->vnic_wait_limit-- is a
post-op, it actually ends up set to (u8)-1.  I have fixed this by
moving the decrement inside the loop.

Fixes: 486a5bc77a4a ('qlcnic: Add support for 83xx suspend and resume.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agonet/qlcnic: fix mac address restore in bond mode 5/6
Jarod Wilson [Fri, 6 Nov 2015 14:25:31 +0000 (09:25 -0500)]
net/qlcnic: fix mac address restore in bond mode 5/6

The bonding driver saves a copy of slaves' original mac address and then
assigns whatever mac as needed to the slave, depending on mode. In at
least modes 5 and 6 (balance-tlb, balance-alb), it often ends up being the
mac address of another slave. On release from the bond, the original mac
address is supposed to get restored via a dev_set_mac_address() call in
the bonding driver's __bond_release_one() function, which calls the
slave's ndo_set_mac_address function, which for qlcnic, is
qlcnic_set_mac().

Now, this function tries to be somewhat intelligent and exit early if
you're trying to set the mac address to the same thing that is already
set. The problem here is that adapter->mac_addr isn't in sync with
netdev->dev_addr. The qlcnic driver still has the original mac stored in
adapter->mac_addr, while the bonding driver has updated netdev->dev_addr,
so qlcnic thinks we're trying to set the same address it already has.

I think the way to go here, since the function updates both netdev and
adapter's stored mac addresses, is to check if either of them doesn't
match the newly requested mac. Simply checking netdev's value only could
result in a similar mismatch and non-update, so look at both.

CC: Dept-GELinuxNICDev@qlogic.com
CC: netdev@vger.kernel.org
CC: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: constify qlcnic_mbx_ops structure
Julia Lawall [Sun, 11 Oct 2015 11:48:05 +0000 (13:48 +0200)]
qlcnic: constify qlcnic_mbx_ops structure

The only instance of a qlcnic_mbx_ops structure is never modified.  Thus
the declaration of the structure and all references to the structure type
can be made const.

In the definition of the qlcnic_mailbox structure, the ops field is no
longer lined up with the other fields.  This was left as is, to avoid a lot
of trivial changes on the other lines.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoqlcnic: track vxlan port count
Jiri Benc [Thu, 17 Sep 2015 14:11:12 +0000 (16:11 +0200)]
qlcnic: track vxlan port count

The callback for adding vxlan port can be called with the same port for
both IPv4 and IPv6. Do not disable the offloading when the same port for
both protocols is added and later one of them removed.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agonet: qlcnic: delete redundant memsets
Rasmus Villemoes [Wed, 9 Sep 2015 08:38:05 +0000 (10:38 +0200)]
net: qlcnic: delete redundant memsets

In all cases, mbx->req.arg and mbx->rsp.arg have just been allocated
using kcalloc(), so these six memsets are redundant.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23711389
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Update driver version to 1.713.10
Rajesh Borundia [Wed, 29 Jun 2016 10:43:17 +0000 (06:43 -0400)]
bnx2x: Update driver version to 1.713.10

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: allow adding VLANs while interface is down
Michal Schmidt [Fri, 3 Jun 2016 13:32:18 +0000 (15:32 +0200)]
bnx2x: allow adding VLANs while interface is down

Since implementing VLAN filtering in commit 05cc5a39ddb74
("bnx2x: add vlan filtering offload") bnx2x refuses to add a VLAN while
the interface is down:

  # ip link add link enp3s0f0 enp3s0f0_10 type vlan id 10
  RTNETLINK answers: Bad address

and in dmesg (with bnx2x.debug=0x20):
  bnx2x: [bnx2x_vlan_rx_add_vid:12941(enp3s0f0)]Ignoring VLAN
  configuration the interface is down

Other drivers have no problem with this.
Fix this peculiar behavior in the following way:
 - Accept requests to add/kill VID regardless of the device state.
   Maintain the requested list of VIDs in the bp->vlan_reg list.
 - If the device is up, try to configure the VID list into the hardware.
   If we run out of VLAN credits or encounter a failure configuring an
   entry, fall back to accepting all VLANs.
   If we successfully configure all entries from the list, turn the
   fallback off.
 - Use the same code for reconfiguring VLANs during NIC load.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: avoid leaking memory on bnx2x_init_one() failures
Vitaly Kuznetsov [Mon, 30 May 2016 13:00:54 +0000 (15:00 +0200)]
bnx2x: avoid leaking memory on bnx2x_init_one() failures

bnx2x_init_bp() allocates memory with bnx2x_alloc_mem_bp() so if we
fail later in bnx2x_init_one() we need to free this memory
with bnx2x_free_mem_bp() to avoid leakages. E.g. I'm observing memory
leaks reported by kmemleak when a failure (unrelated) happens in
bnx2x_vfpf_acquire().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Prevent false warning for lack of FC NPIV
Yuval Mintz [Tue, 15 Mar 2016 17:52:04 +0000 (19:52 +0200)]
bnx2x: Prevent false warning for lack of FC NPIV

Not all adapters have FC-NPIV configured. If bnx2fc is used with such an
adapter, driver would read irrelevant data from the the nvram and log
"FC-NPIV table with bad length..." In system logs.

Simply accept that reading '0' as the feature offset in nvram indicates
the feature isn't there and return.

Reported-by: Andrew Patterson <andrew.patterson@hpe.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: don't wait for Tx completion on recovery
Yuval Mintz [Sun, 13 Mar 2016 19:21:48 +0000 (21:21 +0200)]
bnx2x: don't wait for Tx completion on recovery

When driver has hit a parity event, HW can no longer write to host memory.
As a result, Tx completions cannot be written to the host SB memory, and
waiting for Tx completions eventually timeout.
As driver is willing to delay as much as 1-2 seconds per Tx queue for its
draining and this delay is sequential, the time to recover might greatly
lengthen needlessly in case the recovery is done under multi-connection
traffic.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: fix indentation in bnx2x_sp_task()
Michal Schmidt [Wed, 2 Mar 2016 12:47:11 +0000 (13:47 +0100)]
bnx2x: fix indentation in bnx2x_sp_task()

Fix a case of misleading code indentation.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: define event data reserved fields as little-endian
Michal Schmidt [Wed, 2 Mar 2016 12:47:10 +0000 (13:47 +0100)]
bnx2x: define event data reserved fields as little-endian

For consistency with other event data structs and to lessen
the chance of a mistake should one of the reserved fields become
used in the future, define the reserved fields as little-endian.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: define fields of struct cfc_del_event_data as little-endian
Michal Schmidt [Wed, 2 Mar 2016 12:47:09 +0000 (13:47 +0100)]
bnx2x: define fields of struct cfc_del_event_data as little-endian

There were no missing endianness conversions in this case, but the
fields of struct cfc_del_event_data should be defined as little-endian
to get rid of the ugly (__force __le32) casts.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: access cfc_del_event only if the opcode is CFC_DEL
Michal Schmidt [Wed, 2 Mar 2016 12:47:08 +0000 (13:47 +0100)]
bnx2x: access cfc_del_event only if the opcode is CFC_DEL

It's not really a bug, but it was odd that bnx2x_eq_int() read the
message data as if it were a cfc_del_event regardless of the event type.
It's cleaner to access only the appropriate member of union event_data
after checking the event opcode.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: fix receive of VF->PF mailbox messages by the PF on big-endian
Michal Schmidt [Wed, 2 Mar 2016 12:47:07 +0000 (13:47 +0100)]
bnx2x: fix receive of VF->PF mailbox messages by the PF on big-endian

On ppc64 the PF did not receive messages from VFs correctly.

Fields of struct vf_pf_event_data are little-endian.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: fix sending VF->PF messages on big-endian
Michal Schmidt [Wed, 2 Mar 2016 12:47:06 +0000 (13:47 +0100)]
bnx2x: fix sending VF->PF messages on big-endian

When a VF is sending a message to the PF, it needs to trigger the PF
to tell it the message is ready.
The trigger did not work on ppc64. No interrupt appeared in the PF.

The bug is due to confusion about the layout of struct trigger_vf_zone.
In bnx2x_send_msg2pf() the trigger is written using writeb(), not
writel(), so the attempt to define the struct with a reversed layout on
big-endian is counter-productive.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: fix crash on big-endian when adding VLAN
Michal Schmidt [Wed, 2 Mar 2016 12:47:05 +0000 (13:47 +0100)]
bnx2x: fix crash on big-endian when adding VLAN

bnx2x crashes during the initialization of the 8021q module on ppc64.
The bug is a missing conversion from le32 in
bnx2x_handle_classification_eqe() when obtaining the cid value from
struct eth_event_data.

The fields in struct eth_event_data should all be declared as
little-endian and conversions added where missing.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Fix 84833 phy command handler
Yuval Mintz [Sun, 21 Feb 2016 13:07:29 +0000 (15:07 +0200)]
bnx2x: Fix 84833 phy command handler

Current initialization sequence is lacking, causing some configurations
to fail.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Fix led setting for 84858 phy.
Yuval Mintz [Sun, 21 Feb 2016 13:07:28 +0000 (15:07 +0200)]
bnx2x: Fix led setting for 84858 phy.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Correct 84858 PHY fw version
Yuval Mintz [Sun, 21 Feb 2016 13:07:27 +0000 (15:07 +0200)]
bnx2x: Correct 84858 PHY fw version

The phy's firmware version isn't being parsed properly as it's
currently parsed like the rest of the 848xx phys.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Fix 84833 RX CRC
Yuval Mintz [Sun, 21 Feb 2016 13:07:26 +0000 (15:07 +0200)]
bnx2x: Fix 84833 RX CRC

There's a problem in current 84833 phy configuration -
in case 1Gb link is configured and jumbo-sized packets are being
used, device will experience RX crc errors.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Fix link-forcing for KR2
Yuval Mintz [Sun, 21 Feb 2016 13:07:25 +0000 (15:07 +0200)]
bnx2x: Fix link-forcing for KR2

Currently, when link is using KR2 it cannot be forced to any speed other
than 20g.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.om>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Add missing HSI for big-endian machines
Yuval Mintz [Wed, 17 Feb 2016 11:15:14 +0000 (13:15 +0200)]
bnx2x: Add missing HSI for big-endian machines

Commit e5d3a51cefbb ("bnx2x: extend DCBx support") was missing HSI
changes for big-endian machine, breaking compilation on such
platforms.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Warn about grc timeouts in register dump
Yuval Mintz [Tue, 16 Feb 2016 16:08:01 +0000 (18:08 +0200)]
bnx2x: Warn about grc timeouts in register dump

There are several scenarios where taking a register dump from a device
might log benign GRC timeout attentions to system logs.
Most common of those is when taking the dump from a 2-port device.

Sadly, there's no easy way to mask the problematic attentions during the
flow - Changing this behvaior would require a firmware update.
For now, simply warn users to ignore the warnings.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: extend DCBx support
Yuval Mintz [Tue, 16 Feb 2016 16:08:00 +0000 (18:08 +0200)]
bnx2x: extend DCBx support

This adds support for default application priority.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Add support for single-port DCBx
Yuval Mintz [Tue, 16 Feb 2016 16:07:59 +0000 (18:07 +0200)]
bnx2x: Add support for single-port DCBx

Driver is currently looking at shared information for determining whether
DCBx can be supported for a given port.
On 4-port devices, up-to-date management firmware can support DCBx on
each port of a given engine independently - but that would cause bnx2x to
misinterpert the support and assume DCBx is supported on both.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Remove unneccessary EXPORT_SYMBOL
Yuval Mintz [Tue, 16 Feb 2016 16:07:57 +0000 (18:07 +0200)]
bnx2x: Remove unneccessary EXPORT_SYMBOL

bnx2x_schedule_sp_rtnl is exported by bnx2x, although no other module
uses it.

Reported-by: Benjamin Poirier <bpoirier@suse.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Prevent FW assertion when using Vxlan
Yuval Mintz [Fri, 18 Dec 2015 08:42:12 +0000 (10:42 +0200)]
bnx2x: Prevent FW assertion when using Vxlan

FW has a rare corner case in which a fragmented packet using lots
of frags would not be linearized, causing the FW to assert while trying
to transmit the packet.

To prevent this, we need to make sure the window of fragements containing
MSS worth of data contains 1 BD less than for regular packets due to
the additional parsing BD.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: remove rx_pkt/rx_calls
Eric Dumazet [Tue, 8 Dec 2015 18:28:30 +0000 (10:28 -0800)]
bnx2x: remove rx_pkt/rx_calls

These fields are updated but never read.
Remove the overhead.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: avoid soft lockup in bnx2x_poll()
Eric Dumazet [Tue, 8 Dec 2015 13:54:40 +0000 (05:54 -0800)]
bnx2x: avoid soft lockup in bnx2x_poll()

Under heavy TX load, bnx2x_poll() can loop forever and trigger
soft lockup bugs.

A napi poll handler must yield after one TX completion round,
risk of livelock is too high otherwise.

Bug is very easy to trigger using a debug build, and udp flood, because
of added cpu cycles in TX completion, and we do not receive enough
packets to break the loop.

Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: simplify distinction between port and func stats
Michal Schmidt [Fri, 4 Dec 2015 16:22:36 +0000 (17:22 +0100)]
bnx2x: simplify distinction between port and func stats

The 'flags' field in bnx2x_stats_arr[] serves only one purpose - to tell
us if the statistic is a per-port stat and thus should not be shown for
virtual functions. It's strange that the field can have three different
values. A boolean will do just fine.

Also remove IS_FUNC_STAT(). It was used only once and it's in fact just
a negation of IS_PORT_STAT().

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: change FW GRO error message to WARN_ONCE
Michal Schmidt [Fri, 4 Dec 2015 16:22:35 +0000 (17:22 +0100)]
bnx2x: change FW GRO error message to WARN_ONCE

It's supposed to be impossible for TPA to give us anything else
than IPv4 or IPv6 here. But in case there is a way to reach this error
by some strange received frames, we don't want to flood the kernel log.
WARN_ONCE is better for this purpose.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: drop redundant error message about allocation failure
Michal Schmidt [Fri, 4 Dec 2015 16:22:34 +0000 (17:22 +0100)]
bnx2x: drop redundant error message about allocation failure

alloc_pages() already prints a warning when it fails. No need to emit
another message. Certainly not at KERN_ERR level, because it is no big
deal if this GFP_ATOMIC allocation fails occasionally.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Utilize FW 7.13.1.0.
Yuval Mintz [Sun, 22 Nov 2015 13:01:29 +0000 (15:01 +0200)]
bnx2x: Utilize FW 7.13.1.0.

Commit 46e8a249423ff "bnx2x: Add FW 7.13.1.0" added said .bin FW to
linux-firmware; This patch incorporates the FW in the bnx2x driver.

This introduces 2 fixes/enhancements:
 - In some management protocols there are outer-vlan configurations
that can be dynamically changed while device is running. This fixes
some corner cases where such a change did not take effect.

 - Prevent VFs from sending MAC control frames; FW would treat a VF
sending such a packet as malicious and block any further communication
done by the VF.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Show port statistics in Multi-function
Yuval Mintz [Thu, 19 Nov 2015 15:04:36 +0000 (17:04 +0200)]
bnx2x: Show port statistics in Multi-function

Today, port statistics are being presented when using `ethool -S' only
for single-function devices, but there are some port statistics which are
crucial for analyzing bottle-necks. E.g., HW Rx discards due to lack of
buffer space [when device isn't handling ingress traffic fast enough].

Judging the pros and cons, it was decided that in-order to better support
automatic dump-gathering tools, bnx2x should no longer hide those stats.
This leaves only VFs lacking the port statistics.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Add new SW stat 'tx_exhaustion_events'
Yuval Mintz [Thu, 19 Nov 2015 15:04:35 +0000 (17:04 +0200)]
bnx2x: Add new SW stat 'tx_exhaustion_events'

Driver already has an internal counter for number of times a given queue
had to be stopped due to Tx ring exhaustion.
This add the counter to the statistics presented by driver, e.g., by using
`ethtool -S'.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Fix vxlan removal
Yuval Mintz [Thu, 19 Nov 2015 09:56:51 +0000 (11:56 +0200)]
bnx2x: Fix vxlan removal

Commmit ac7eccd4d48fc "bnx2x: track vxlan port count" contains a bug -
Instead of achieving the required goal, vxlan configuration would not
be removed since we're decrementing the port instead of the counter.

CC: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agonet: move skb_mark_napi_id() into core networking stack
Eric Dumazet [Wed, 18 Nov 2015 14:30:59 +0000 (06:30 -0800)]
net: move skb_mark_napi_id() into core networking stack

We would like to automatically provide busy polling support
to all NAPI drivers, without them having to implement anything.

skb_mark_napi_id() can be called from napi_gro_receive() and
napi_get_frags().

Few drivers are still calling skb_mark_napi_id() because
they use netif_receive_skb(). They should eventually call
napi_gro_receive() instead. I will leave this to drivers
maintainers.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: remove bnx2x_low_latency_recv() support
Eric Dumazet [Wed, 18 Nov 2015 14:30:57 +0000 (06:30 -0800)]
bnx2x: remove bnx2x_low_latency_recv() support

Switch to native NAPI polling, as this reduces overhead and complexity.

Normal path is faster, since one cmpxchg() is not anymore requested,
and busy polling with the NAPI polling has same performance.

Tested:
lpk50:~# cat /proc/sys/net/core/busy_read
70
lpk50:~# nstat >/dev/null;./netperf -H lpk55 -t TCP_RR;nstat
MIGRATED TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to lpk55.prod.google.com () port 0 AF_INET : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

16384  87380  1        1       10.00    40095.07
16384  87380
IpInReceives                    401062             0.0
IpInDelivers                    401062             0.0
IpOutRequests                   401079             0.0
TcpActiveOpens                  7                  0.0
TcpPassiveOpens                 3                  0.0
TcpAttemptFails                 3                  0.0
TcpEstabResets                  5                  0.0
TcpInSegs                       401036             0.0
TcpOutSegs                      401052             0.0
TcpOutRsts                      38                 0.0
UdpInDatagrams                  26                 0.0
UdpOutDatagrams                 27                 0.0
Ip6OutNoRoutes                  1                  0.0
TcpExtDelayedACKs               1                  0.0
TcpExtTCPPrequeued              98                 0.0
TcpExtTCPDirectCopyFromPrequeue 98                 0.0
TcpExtTCPHPHits                 4                  0.0
TcpExtTCPHPHitsToUser           98                 0.0
TcpExtTCPPureAcks               5                  0.0
TcpExtTCPHPAcks                 101                0.0
TcpExtTCPAbortOnData            6                  0.0
TcpExtBusyPollRxPackets         400832             0.0
TcpExtTCPOrigDataSent           400983             0.0
IpExtInOctets                   21273867           0.0
IpExtOutOctets                  21261254           0.0
IpExtInNoECTPkts                401064             0.0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobnx2x: Add FW 7.13.1.0.
Yuval Mintz [Thu, 19 Nov 2015 16:41:26 +0000 (18:41 +0200)]
bnx2x: Add FW 7.13.1.0.

This adds new FW for bnx2x, which adds the following:
 - Ability to change outer vlan ID for some multi-function modes.
 - FW ability for Geneve RSS classification according to inner headers.
 - Prevent VFs from sending MAC control frames.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>
Orabug: 23718192
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2iscsi: Update the driver version
Jitendra Bhivare [Wed, 24 Feb 2016 06:48:45 +0000 (12:18 +0530)]
be2iscsi: Update the driver version

Driver version: 11.0.0.0

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Orabug: 23712824
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2iscsi: Replace _bh with _irqsave/irqrestore
Jitendra Bhivare [Thu, 14 Apr 2016 03:50:05 +0000 (09:20 +0530)]
be2iscsi: Replace _bh with _irqsave/irqrestore

Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 21
Pid: 13242, comm: flush-8:80 Tainted: G        W  -- ------------    2.6.32-573.el6.x86_64 #1
Call Trace:
<NMI>  [<ffffffff81537a84>] ? panic+0xa7/0x16f
[<ffffffff810149c9>] ? sched_clock+0x9/0x10
[<ffffffff810ed4bd>] ? watchdog_overflow_callback+0xcd/0xd0
[<ffffffff81124037>] ? __perf_event_overflow+0xa7/0x240
[<ffffffff8101dc54>] ? x86_perf_event_set_period+0xf4/0x180
[<ffffffff81124684>] ? perf_event_overflow+0x14/0x20
[<ffffffff81024a02>] ? intel_pmu_handle_irq+0x202/0x3f0
[<ffffffff8153cd89>] ? perf_event_nmi_handler+0x39/0xb0
[<ffffffff8153e845>] ? notifier_call_chain+0x55/0x80
[<ffffffff81389ba0>] ? scsi_done+0x0/0x60
[<ffffffff8153e8aa>] ? atomic_notifier_call_chain+0x1a/0x20
[<ffffffff810a788e>] ? notify_die+0x2e/0x30
[<ffffffff8153c503>] ? do_nmi+0x1c3/0x350
[<ffffffff8153bdc0>] ? nmi+0x20/0x30
[<ffffffff81389ba0>] ? scsi_done+0x0/0x60
[<ffffffff81389ba0>] ? scsi_done+0x0/0x60
[<ffffffff8153b62e>] ? _spin_lock+0x1e/0x30
<<EOE>>  [<ffffffffa00e2eaf>] ? iscsi_queuecommand+0x7f/0x4e0 [libiscsi]
[<ffffffff81389df5>] ? scsi_dispatch_cmd+0xe5/0x310
[<ffffffff813927be>] ? scsi_request_fn+0x5be/0x750
[<ffffffff81089bad>] ? del_timer+0x7d/0xe0
[<ffffffff81273542>] ? __generic_unplug_device+0x32/0x40
[<ffffffff8126e823>] ? elv_insert+0xd3/0x190
[<ffffffff8126e920>] ? __elv_add_request+0x40/0x90

In beiscsi_alloc_pdu, _bh versions of spin_lock are being used for
protecting SGLs and WRBs. _bh versions are needed as the function gets
invoked in process context and BLOCK_IOPOLL softirq.

In spin_unlock_bh, after releasing the lock and enabling BH, do_softirq
is called which executes till last SOFTIRQ.

beiscsi_alloc_pdu is called under session lock. Through block layer,
iSCSI stack in some cases send IOs with interrupts disabled. In such paths,
CPU will get stuck for a while for session lock with interrupts disabled
because in other CPU do_softirq is executing under session lock thus
causing hard lock up.

Use spin_lock_irqsave/spin_lock_irqrestore as the driver can't be sure
in all paths interrupts are enabled.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Orabug: 23712824
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2iscsi: Remove unnecessary synchronize_irq() before free_irq()
Lars-Peter Clausen [Fri, 4 Mar 2016 10:15:06 +0000 (11:15 +0100)]
be2iscsi: Remove unnecessary synchronize_irq() before free_irq()

Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
 free_irq(irq, ...);
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Orabug: 23712824
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2iscsi:Add missing error check in beiscsi_eeh_resume
Nicholas Krause [Sat, 27 Feb 2016 17:43:25 +0000 (12:43 -0500)]
be2iscsi:Add missing error check in beiscsi_eeh_resume

This adds the missing error check and path for if the call to the
function hwi_init_controller fails as this error path was clearly missed
when writing beiscsi_eeh_resume and thus we must add it now in order to
be able to handle this nonrecoverable failing function call gracefully
in beiscsi_eeh_resume.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Reviewed-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Orabug: 23712824
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoatl2: Disable unimplemented scatter/gather feature
Ben Hutchings [Wed, 20 Apr 2016 22:23:08 +0000 (23:23 +0100)]
atl2: Disable unimplemented scatter/gather feature

atl2 includes NETIF_F_SG in hw_features even though it has no support
for non-linear skbs.  This bug was originally harmless since the
driver does not claim to implement checksum offload and that used to
be a requirement for SG.

Now that SG and checksum offload are independent features, if you
explicitly enable SG *and* use one of the rare protocols that can use
SG without checkusm offload, this potentially leaks sensitive
information (before you notice that it just isn't working).  Therefore
this obscure bug has been designated CVE-2016-2117.

Reported-by: Justin Yackoski <jyackoski@crypto-nite.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.")
Signed-off-by: David S. Miller <davem@davemloft.net>
Orabug: 23703754
(cherry picked from commit f43bfaeddc79effbf3d0fcb53ca477cca66f3db8)
Signed-off-by: Todd Vierling <todd.vierling@oracle.com>
9 years agobe2net: Fix provisioning of RSS for VFs in multi-partition configurations
Somnath Kotur [Mon, 6 Jun 2016 11:22:10 +0000 (07:22 -0400)]
be2net: Fix provisioning of RSS for VFs in multi-partition configurations

Currently, we do not distribute queue resources to enable RSS for VFs
in multi-channel/partition configurations.
Fix this by having each PF(SRIOV capable) calculate it's share of the
15 RSS Policy Tables available per port before provisioning resources for
all the VFs.
This  proportional share calculation is done based on division of the
PF's MAX VFs with the Total MAX VFs on that port. It also needs to
learn about the no: of NIC PFs on the port and subtract that from
the 15 RSS Policy Tables on the port.

Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: Enable Wake-On-LAN from shutdown for Skyhawk
Sriharsha Basavapatna [Mon, 6 Jun 2016 11:22:09 +0000 (07:22 -0400)]
be2net: Enable Wake-On-LAN from shutdown for Skyhawk

Skyhawk does support wake-up from ACPI shutdown state - S5, provided the
platform supports it (like Auxiliary power source etc). The changes listed
below are done to fix this.

1) There's no need to defer the HW configuration of WOL to be_suspend().
Remove this in be_suspend() and move it to be_set_wol() ethtool function
so it is configured directly in the context of ethtool. This automatically
takes care of the shutdown case.

2) The driver incorrectly uses WOL_CAP field in the FW response to
get_acpi_wol_cap() command, to determine if WOL is enabled. Instead the
driver must rely on the macaddr field in the response to infer WOL state.

3) In be_get_config() during init, if we find that WOL is enabled in FW,
call pci_enable_wake() to enable pmcsr.pme_en bit. This is needed to
support persistent WOL configuration provided by the FW in some platforms.

4) Remove code in be_set_wol() that writes to PCICFG_PM_CONTROL_OFFSET
to set pme_en bit; pci_enable_wake() sets that.

Fixes: 028991e49 ("Enabling Wake-on-LAN is not supported in S5 state")
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: use max-TXQs limit too while provisioning VF queue pairs
Suresh Reddy [Mon, 6 Jun 2016 11:22:08 +0000 (07:22 -0400)]
be2net: use max-TXQs limit too while provisioning VF queue pairs

When the PF driver provisions resources for VFs, it currently only looks
at max RSS queues available to calculate the number of VF queue pairs.
This logic breaks when there are less number of TX-queues than RSS-queues.
This patch fixes this problem by using the max-TXQs available in the
PF-pool in the calculations. As a part of this change the
be_calculate_vf_qs() routine is renamed as be_calculate_vf_res() and the
code that calculates limits on other related resources is moved here to
contain all resource calculation code inside one routine.

Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com>
Signed-off-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobenet: be_resume needs to protect be_open with rtnl_lock
Hannes Frederic Sowa [Mon, 18 Apr 2016 19:19:42 +0000 (21:19 +0200)]
benet: be_resume needs to protect be_open with rtnl_lock

be_open calls down to functions which expects rtnl lock to be held.

Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: Don't leak iomapped memory on removal.
Douglas Miller [Fri, 4 Mar 2016 21:36:56 +0000 (15:36 -0600)]
be2net: Don't leak iomapped memory on removal.

The adapter->pcicfg resource is either mapped via pci_iomap() or
derived from adapter->db. During be_remove() this resource was ignored
and so could remain mapped after remove.

Add a flag to track whether adapter->pcicfg was mapped or not, then
use that flag in be_unmap_pci_bars() to unmap if required.

Fixes: 25848c901 ("use PCI MMIO read instead of config read for errors")
Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: don't enable multicast flag in be_enable_if_filters() routine
Venkat Duvvuru [Wed, 2 Mar 2016 11:00:28 +0000 (06:00 -0500)]
be2net: don't enable multicast flag in be_enable_if_filters() routine

When the interface is opened (in be_open()) the routine
be_enable_if_filters() must be called to switch on the basic filtering
capabilities of an interface that are not changed at run-time.
These include the flags UNTAGGED, BROADCAST and PASS_L3L4_ERRORS.
Other flags such as MULTICAST and PROMISC must be enabled later by
be_set_rx_mode() based on the state in the netdev/adapter struct.

be_enable_if_filters() routine is wrongly trying to enable MULTICAST flag
without checking the current adapter state. This can cause the RX_FILTER
cmds to the FW to fail.  This patch fixes this problem by only enabling
the basic filtering flags in be_enable_if_filters().

The VF must be able to issue RX_FILTER cmd with any filter flag, as long
as the PF allowed those flags (if_cap_flags) in the iface it provisioned
for the VF. This rule is applicable even when the VF doesn't have the
FILTMGMT privilege. There is a bug in BE3 FW that wrongly fails RX_FILTER
multicast programming cmds on VFs that don't have FILTMGMT privilege.
This patch also helps in insulating the VF driver from be_open failures due
to the FW bug. A fix for the BE3 FW issue will be available in
versions >= 11.0.283.0 and 10.6.334.0

Reported-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@avagotech.com>
Signed-off-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: Fix a UE caused by passing large frames to the ASIC
ajit.khaparde@broadcom.com [Mon, 22 Feb 2016 19:05:01 +0000 (00:35 +0530)]
be2net: Fix a UE caused by passing large frames to the ASIC

In QnQ configurations like Flex-10 where the VLANs are inserted by the
ASIC, on rare occasions the HW is encountering a scenario where the
final frame length ends to be greater than what the ASIC can support.

This is because when the TXULP pulls the TX WRB to check the length
of the frame to be transmitted it also adds the size of VLANs to be
inserted by the HW to the length of the frame indicated in the WRB,
which in some cases fails the range check.  This causes a UE.

Avoid this by trimming the skb length to accommodate the VLAN insertion.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: Declare some u16 fields as u32 to improve performance
ajit.khaparde@broadcom.com [Mon, 22 Feb 2016 19:03:48 +0000 (00:33 +0530)]
be2net: Declare some u16 fields as u32 to improve performance

When 16-bit integers are loaded on CPUs with high order native
register sizes, the CPU could use some extra ops before using them.
And currently some of the frequently used fields in the driver like
the producer and consumer indices of the queues are declared as u16.

This patch declares such fields as u32.  With this change we see the
64-byte packets per second numbers improve by about 4%.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agobe2net: Fix pcie error recovery in case of NIC+RoCE adapters
Padmanabh Ratnakar [Wed, 17 Feb 2016 21:39:34 +0000 (03:09 +0530)]
be2net: Fix pcie error recovery in case of NIC+RoCE adapters

Interrupts registered by RoCE driver are not unregistered when
msix interrupts are disabled during error recovery causing a
crash. Detach the adapter instance from RoCE driver when error
is detected to complete the cleanup. Attach the driver again after
the adapter is recovered from error.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: suresh.reddy <suresh.reddy@broadcom.com>
Orabug: 23641442
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>
9 years agoPCI: Mark Intel i40e NIC INTx masking as broken
Alex Williamson [Thu, 24 Mar 2016 19:03:49 +0000 (13:03 -0600)]
PCI: Mark Intel i40e NIC INTx masking as broken

Orabug: 23176970

All of the i40e (XL710/X710) 10/20/40GbE NICs lack support for indicating
INTx is asserted via the interrupt bit in the PCI status register.  The
DisINTx bit in the command register is functional, causing these devices to
be incorrectly detected as supporting INTx masking.  Quirk them to properly
indicate no INTx masking support.

Device IDs copied from i40e_devids.h.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: John Ronciak <john.ronciak@intel.com>
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
(cherry picked from commit 8bcf4525c5d43306c5fd07e132bc8650e3491aec)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: fix an uninitialized variable bug
Dan Carpenter [Thu, 5 May 2016 13:18:02 +0000 (16:18 +0300)]
i40e: fix an uninitialized variable bug

Orabug: 23176970

We removed this initialization but it is required.  Let's put it back.

Fixes: 895106a577c4 ('i40e: trivial fixes')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 1c306f7f62a38ee5f05f0ee994dfe82d654cf47c)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Bump version from 1.5.10 to 1.5.16
Bimmy Pujari [Tue, 3 May 2016 22:13:20 +0000 (15:13 -0700)]
i40e: Bump version from 1.5.10 to 1.5.16

Orabug: 23176970

Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit c74dff1aaaf2ee51368a0cbf2f903cc3d8690abc)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: don't add broadcast filter for VFs
Mitch Williams [Tue, 3 May 2016 22:13:19 +0000 (15:13 -0700)]
i40e: don't add broadcast filter for VFs

Orabug: 23176970

Now that all VSIs are configured to receive broadcasts as default, we
don't need to add a filter. This eliminates an annoying but harmless
error message each time VFs are created or reset.

Change-ID: I4cd6339684df45b0d2722133eeb84c14fa93ea19
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>
(cherry picked from commit d96a83def2f70ea7b26268efdd44eb9f1e400171)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e/i40evf: properly report Rx packet hash
Mitch Williams [Tue, 3 May 2016 22:13:18 +0000 (15:13 -0700)]
i40e/i40evf: properly report Rx packet hash

Orabug: 23176970

This logic is inverted. If the RXHASH flag is set, then we should go
ahead and call skb_set_hash.

Change-ID: Ib2e30356dced1d3e939c8061ab6ad5bd94197e7c
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>
(cherry picked from commit a876c3ba59a69a1d4ba240ee7cb50acf31116647)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: set context to use VSI RSS LUT for SR-IOV
Ashish Shah [Tue, 3 May 2016 22:13:17 +0000 (15:13 -0700)]
i40e: set context to use VSI RSS LUT for SR-IOV

Orabug: 23176970

For the SR-IOV VSIs, when the queue filtering section is valid,
the RSS LUT needs to be set to use the VSI specific lookup table
(otherwise it will use the PF RSS LUT table).

Change-ID: Ia9377cc818078238a75c3bdeade1b593a91b3480
Signed-off-by: Ashish Shah <ashish.n.shah@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 4b28cdba4859c2d1eb77144fe2383afb8daea1ca)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Correct UDP packet header for non_tunnel-ipv6
Akeem G Abodunrin [Tue, 3 May 2016 22:13:16 +0000 (15:13 -0700)]
i40e: Correct UDP packet header for non_tunnel-ipv6

Orabug: 23176970

This patch corrects Rx ptype payload layer for non_tunneled ipv6. It
should be layer 4 for UDP, instead of layer 3.

Change-ID: I9382e4458ab3c4e58f6d2e9f195d5d4ee513805e
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 73df8c9e3e3d1d5d38d48ba4bfb0f709f68c8e13)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: change Rx hang message into a WARN_ONCE
Jacob Keller [Tue, 3 May 2016 22:13:15 +0000 (15:13 -0700)]
i40e: change Rx hang message into a WARN_ONCE

Orabug: 23176970

Use WARN_ONCE in order to highlight the issue, but don't display
a warning every time. The user should be able to see the ethtool counter
we created if necessary to see how often it is occurring.

Change-ID: I40c4ea159819b64a7d33b7f5716749089791533a
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit c420815d12b744ad8cf9312af13af794bad48216)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Refactor ethtool get_settings
Catherine Sullivan [Tue, 3 May 2016 22:13:14 +0000 (15:13 -0700)]
i40e: Refactor ethtool get_settings

Orabug: 23176970

Previously we were only looking at the FW supported PHY types if link
was down, because we want to be more specific when link is up. This
refactor changes this. When link is down, we still rely on the FW
supported PHY types, but when link is up, we select the possible
supported link modes from what we know about the current PHY type, and
AND that with the FW supported PHY types.

Change-ID: Ice5dad83f2a17932b0b8b59f07439696ad6aa013
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>
(cherry picked from commit 06566e5dd4e53f57fc3daa12fb8b5252772d70de)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: lie to the VF
Mitch Williams [Tue, 3 May 2016 22:13:13 +0000 (15:13 -0700)]
i40e: lie to the VF

Orabug: 23176970

If an untrusted VF attempts to configure promiscuous mode, log a message
pointing out its naughty behavior. But then, instead of returning an
error to the offender, just lie to it and say everything's OK. It will
continue on its way, thinking it's in promiscuous mode, but receiving no
packets except its own.

Change-ID: I63369215b1720f3c531eedfc06af86ff8c0e3dc8
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>
(cherry picked from commit eee4172abcdcc610e40eb9513d19ff16c7820270)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Add vf-true-promisc-support priv flag
Anjali Singhai Jain [Tue, 3 May 2016 22:13:12 +0000 (15:13 -0700)]
i40e: Add vf-true-promisc-support priv flag

Orabug: 23176970

This patch adds priv-flag knob to configure global true promisc
support. With this patch the user can decide the flavor of
promiscuous that the VFs will see when promiscuous mode is enabled
on the interface. Since this a global setting for the whole device,
the priv-flag is exposed only on the first PF of the device.

The default is true promisc support is off, which means the promisc
mode for the VF will be limited/defport mode.

For the PF, we still will be in limited promisc unless in MFP mode
irrespective of the flavor picked through this knob.

Usage:
On PF0
ethtool --show-priv-flags p261p1
Private flags for p261p1:
MFP                    : off
LinkPolling            : off
flow-director-atr      : on
veb-stats              : off
hw-atr-eviction        : off
vf-true-promisc-support: off

to enable setting true promisc
ethtool --set-priv-flags p261p1 vf-true-promisc-support on

At this point if the VF is set to trust and promisc is enabled
on the VF through
ip link set ... promisc on
The VF/VFs will be able to see ALL ingress traffic

Change-Id: I8fac4b6eb1af9ca77b5376b79c50bdce5055bd94
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit b5569892309e2e62641076f43aef6919286343b4)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/net/ethernet/intel/i40e/i40e.h
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
drivers/net/ethernet/intel/i40e/i40e_main.c

9 years agoi40e: Implement the API function for aq_set_switch_config
Shannon Nelson [Tue, 3 May 2016 22:13:11 +0000 (15:13 -0700)]
i40e: Implement the API function for aq_set_switch_config

Orabug: 23176970

Add the support code for calling the AdminQ API call aq_set_switch_config

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>
(cherry picked from commit f3d5849756f0da14edabb1835e35aea8b6bc7440)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Add allmulti support for the VF
Anjali Singhai Jain [Tue, 3 May 2016 22:13:10 +0000 (15:13 -0700)]
i40e: Add allmulti support for the VF

Orabug: 23176970

This patch enables a feature to enable/disable all multicast
for a trusted VF.

Change-Id: I926eba7f8850c8d40f8ad7e08bbe4056bbd3985f
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit f42a5c74da9996d602093d7760f6916444009a9d)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Add support for disabling all link and change bits needed for PHY interactions
Kevin Scott [Tue, 3 May 2016 22:13:09 +0000 (15:13 -0700)]
i40e: Add support for disabling all link and change bits needed for PHY interactions

Orabug: 23176970

Add flag to tell firmware to disable link on all ports.

This patch changes the bits set for telling firmware the PHY needs
to be modified by driver.  Without this patch, the setting will only
set that mode for the current port on the device.  Because the
MDIO interface is common for the copper device. The command needs to
set the mode for all ports.

Change-ID: I8baa7da91d384291ac95b41ae1a516604f8eb67f
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 06c0e39bbefd04b19ca50f29be698eeed21630b5)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: constify i40e_client_ops structure
Julia Lawall [Sun, 1 May 2016 12:07:23 +0000 (14:07 +0200)]
i40e: constify i40e_client_ops structure

Orabug: 23176970

The i40e_client_ops structure is never modified, so declare it as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 3949c4ac8cfa8ab3518a326c72eff1a2ff489bb9)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/infiniband/hw/i40iw/i40iw_main.c

9 years agoi40e: fix misleading indentation
Arnd Bergmann [Fri, 29 Apr 2016 17:44:05 +0000 (19:44 +0200)]
i40e: fix misleading indentation

Orabug: 23176970

Newly added code in i40e_vc_config_promiscuous_mode_msg() is indented
in a way that gcc rightly complains about:

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c: In function 'i40e_vc_config_promiscuous_mode_msg':
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:1543:4: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
    if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
    ^~
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:1550:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
     aq_err = pf->hw.aq.asq_last_status;

From the context, it looks like the aq_err assignment was meant to be
inside of the conditional expression, so I'm adding the appropriate
curly braces now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5676a8b9cd9a ("i40e: Add VF promiscuous mode driver support")
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit ce927db48721235b3a08142b6d9f9a906e4e626f)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Test memory before ethtool alloc succeeds
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:49 +0000 (11:33 -0700)]
i40e: Test memory before ethtool alloc succeeds

Orabug: 23176970

When testing on systems with very limited amounts of RAM, a bug was
found where, while changing the number of descriptors using ethtool,
the driver didn't test the limits of system memory before permanently
assuming it would be able to get receive buffer memory.

Work around this issue by pre-allocation of the receive buffer
memory, in the "ghost" ring, which is then used during reinit
using the new ring length.

Change-Id: I92d7a5fb59a6c884b2efdd1ec652845f101c3359
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>
(cherry picked from commit 147e81ec7568933a51fe58b64244383e929870fb)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40evf: Allocate Rx buffers properly
Mitch Williams [Mon, 18 Apr 2016 18:33:48 +0000 (11:33 -0700)]
i40evf: Allocate Rx buffers properly

Orabug: 23176970

Allocate the correct number of RX buffers, and don't fiddle with
next_to_use. The common RX code handles all of this. This fixes a memory
leak of one page each time the driver is opened.

Change-Id: Id06eca353086e084921f047acad28c14745684ee
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>
(cherry picked from commit b163098ea1eece88a8834952dcbade1f17378731)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e/i40evf: Remove unused hardware receive descriptor code
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:47 +0000 (11:33 -0700)]
i40e/i40evf: Remove unused hardware receive descriptor code

Orabug: 23176970

The hardware supports a 16 byte descriptor for receive, but the
driver was never using it in production.  There was no performance
benefit to the real driver of 16 byte descriptors, so drop a whole
lot of complexity while getting rid of the code.

Also since the previous patch made us use no-split mode all the
time, drop any support in the driver for any other value in dtype
and assume it is always zero (aka no-split).

Hooray for code removal!

Change-ID: I2257e902e4dad84a07b94db6d2e6f4ce69b27bc0
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>
(cherry picked from commit bec60fc42b285344b027c87444c7fd6caade0ceb)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40evf: refactor receive routine
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:46 +0000 (11:33 -0700)]
i40evf: refactor receive routine

Orabug: 23176970

This is part 2 of the Rx refactor series, just including
changes to i40evf.

This refactor aligns the receive routine with the one in
ixgbe which was highly optimized.  This reduces the code
we have to maintain and allows for (hopefully) more readable
and maintainable RX hot path.

In order to do this:
- consolidate the receive path into a single function that doesn't
  use packet split but *does* use pages for Rx buffers.
- remove the old _1buf routine
- consolidate several routines into helper functions
- remove VF ethtool control over packet split
- remove priv_flags interface since it is unused

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>
(cherry picked from commit ab9ad98eb5f95b86490cc4c2ddbde5a0bc9bd5c6)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/net/ethernet/intel/i40evf/i40e_txrx.c

9 years agoi40evf: Drop packet split receive routine
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:45 +0000 (11:33 -0700)]
i40evf: Drop packet split receive routine

Orabug: 23176970

As part of preparation for the rx-refactor, remove the
packet split receive routine and ancillary code.

Some of the split related context set up code stays in
i40e_virtchnl_pf.c in case an older VF driver tries to load
and still wants to use packet split.

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>
(cherry picked from commit 19b85e677df44b954c23a47395edf5a6c379771b)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/net/ethernet/intel/i40evf/i40e_txrx.c

9 years agoi40e: Refactor receive routine
Jesse Brandeburg [Thu, 21 Apr 2016 02:43:37 +0000 (19:43 -0700)]
i40e: Refactor receive routine

Orabug: 23176970

This is part 1 of the Rx refactor series, just including
changes to i40e.

This refactor aligns the receive routine with the one in
ixgbe which was highly optimized.  This reduces the code
we have to maintain and allows for (hopefully) more readable
and maintainable RX hot path.

In order to do this:
- consolidate the receive path into a single function that doesn't
  use packet split but *does* use pages for Rx buffers.
- remove the old _1buf routine
- consolidate several routines into helper functions
- remove ethtool control over packet split

Change-ID: I5ca100721de65992aa0114f8b4bac844b84758e0
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>
(cherry picked from commit 1a557afc4dd59b85a5cae2be6d351eaeb31d2664)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/net/ethernet/intel/i40e/i40e_txrx.c

9 years agoi40e/i40evf: Remove reference to ring->dtype
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:43 +0000 (11:33 -0700)]
i40e/i40evf: Remove reference to ring->dtype

Orabug: 23176970

As part of the rx-refactor, the dtype variable in the i40e_ring
struct is no longer used, so remove it.

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>
(cherry picked from commit 04b3b779816502549e5f4bfaf5df90204ce2fe0e)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Drop packet split receive routine
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:42 +0000 (11:33 -0700)]
i40e: Drop packet split receive routine

Orabug: 23176970

As part of preparation for the rx-refactor, remove the
packet split receive routine and ancillary code.

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>
(cherry picked from commit b32bfa17246d836125958e39996a674653e899a5)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
drivers/net/ethernet/intel/i40e/i40e_txrx.c

9 years agoi40e/i40evf: Refactor tunnel interpretation
Jesse Brandeburg [Mon, 18 Apr 2016 18:33:41 +0000 (11:33 -0700)]
i40e/i40evf: Refactor tunnel interpretation

Orabug: 23176970

Refactor the interpretation of a tunnel.  This removes
some code and lets us start using the hardware's parsing.

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>
(cherry picked from commit f8a952cb40407f3c127cab8ec77f1261f1e424b4)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40evf: make use of BIT() macro to avoid signed left shift
Jacob Keller [Wed, 13 Apr 2016 23:08:27 +0000 (16:08 -0700)]
i40evf: make use of BIT() macro to avoid signed left shift

Orabug: 23176970

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit ae63bff0d7f333677e7ec532e9c315c74a510403)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: make use of BIT() macro to prevent left shift of signed values
Jacob Keller [Wed, 13 Apr 2016 23:08:26 +0000 (16:08 -0700)]
i40e: make use of BIT() macro to prevent left shift of signed values

Orabug: 23176970

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 2101bac2d4c26208fa0d1d9ffd8b83ad0199d61a)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e/i40evf: fix I40E_MASK signed shift overflow warnings
Jacob Keller [Wed, 13 Apr 2016 23:08:25 +0000 (16:08 -0700)]
i40e/i40evf: fix I40E_MASK signed shift overflow warnings

Orabug: 23176970

GCC 6 has a new warning which will display when you attempt to left
shift a signed value beyond the storage size of the type. I40E_MASK
generates a mask value for 32bit registers. Properly typecast the mask
value and place the values in parenthesis to prevent macro expansion
issues.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit dcb57456e73f204beff12e4532aaf573d1115114)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e/i40evf : Bump driver version from 1.5.5 to 1.5.10
Harshitha Ramamurthy [Wed, 13 Apr 2016 10:08:32 +0000 (03:08 -0700)]
i40e/i40evf : Bump driver version from 1.5.5 to 1.5.10

Orabug: 23176970

Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 5a6fc256e7b64b3073688cc72fae357612cf31c6)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Update device ids for X722
Catherine Sullivan [Wed, 13 Apr 2016 10:08:31 +0000 (03:08 -0700)]
i40e: Update device ids for X722

Orabug: 23176970

Add a device ID for X722.

Change-Id: I574f2345ab341de98a6a1c212d0603af853e48b0
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>
(cherry picked from commit a3aa5036cf3798c18fe22041fbfbac01642657e0)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Drop extra copy of function
Jesse Brandeburg [Wed, 13 Apr 2016 10:08:30 +0000 (03:08 -0700)]
i40e: Drop extra copy of function

Orabug: 23176970

i40e_release_rx_desc was in two files, but was only used
and needed in txrx.c.  Get rid of the extra copy.

Change-Id: I86e18239aa03531fc198b6c052847475084a9200
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>
(cherry picked from commit de38fef610f4e72fdf506bb84ddb05b46f4bf653)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Use consistent type for vf_id
Jesse Brandeburg [Wed, 13 Apr 2016 10:08:29 +0000 (03:08 -0700)]
i40e: Use consistent type for vf_id

Orabug: 23176970

The driver was all over the place using signed or unsigned types
for vf_id, when it should always be signed.

This fixes warnings of type unsafe comparisons from gcc with W=2.

Change-Id: I2cb681f83d0f68ca124d2e4131e4ac0d9f8a6b22
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>
(cherry picked from commit a1b5a24fccc83430bb1fa6e0f9925fb8328abd34)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: PTP - avoid aggregate return warnings
Jesse Brandeburg [Wed, 13 Apr 2016 10:08:28 +0000 (03:08 -0700)]
i40e: PTP - avoid aggregate return warnings

Orabug: 23176970

Aggregate return warnings are when struct types are returned
and must be copied to the lvalue with a struct copy by the compiler.

This fixes warnings of type aggregate-return from gcc with W=2.

Change-Id: I896b1bf514544bf0faeb458869d79914b9f1b168
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit cdc3d93257e162dd12906a6e0207436c2d5c6873)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40e: Fix uninitialized variable
Catherine Sullivan [Wed, 13 Apr 2016 10:08:27 +0000 (03:08 -0700)]
i40e: Fix uninitialized variable

Orabug: 23176970

We have an uninitialized variable warning for valid_len for one case in
validate_vf_mesg. To fix this, just initialize it to 0 at the top of the
function and remove all of the now redundant assignments to 0 in the
individual cases.

Change-Id: Iacbd97f4c521ed8d662eef803a598d8707708cfd
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>
(cherry picked from commit 3ed439c56e0d82fd08275fff2c21278f92ed8ec5)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
9 years agoi40evf: RSS Hash Option parameters
Carolyn Wyborny [Wed, 13 Apr 2016 10:08:26 +0000 (03:08 -0700)]
i40evf: RSS Hash Option parameters

Orabug: 23176970

This patch syncs the VF code for the changes made to the PF for the RSS
hash tuple settings.  Since the VF still cannot change the RSS hash
settings, change the code to make this clear to the user.  Previously,
the default settings were returned in this function. However, the
default can be changed by the PF so this does not make sense anymore.

Change-Id: I085eaf005fc7978b440d2a1bf2b2dd7cadaff39b
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit b29699b39924db73993734a605665cf4bebef9ea)
Signed-off-by: Brian Maly <brian.maly@oracle.com>