Commit Graph

913 Commits

Author SHA1 Message Date
Yuval Mintz
0a7fb11c23 qed: Add Light L2 support
Other protocols beside the networking driver need the ability
of passing some L2 traffic, usually [although not limited] for the
purpose of some management traffic.

Signed-off-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: Ram Amrani <Ram.Amrani@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-03 23:22:46 -04:00
Moshe Shemesh
79aab093a0 net: Update API for VF vlan protocol 802.1ad support
Introduce new rtnl UAPI that exposes a list of vlans per VF, giving
the ability for user-space application to specify it for the VF, as an
option to support 802.1ad.
We adjusted IP Link tool to support this option.

For future use cases, the new UAPI supports multiple vlans. For now we
limit the list size to a single vlan in kernel.
Add IFLA_VF_VLAN_LIST in addition to IFLA_VF_VLAN to keep backward
compatibility with older versions of IP Link tool.

Add a vlan protocol parameter to the ndo_set_vf_vlan callback.
We kept 802.1Q as the drivers' default vlan protocol.
Suitable ip link tool command examples:
  Set vf vlan protocol 802.1ad:
    ip link set eth0 vf 1 vlan 100 proto 802.1ad
  Set vf to VST (802.1Q) mode:
    ip link set eth0 vf 1 vlan 100 proto 802.1Q
  Or by omitting the new parameter
    ip link set eth0 vf 1 vlan 100

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24 08:01:26 -04:00
David S. Miller
d6989d4bbe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-23 06:46:57 -04:00
Yuval Mintz
67a99b7061 qed: Fix stack corruption on probe
Commit fe56b9e6a8 ("qed: Add module with basic common support")
has introduced a stack corruption during probe, where filling a
local struct with data to be sent to management firmware is incorrectly
filled; The data is written outside of the struct and corrupts
the stack.

Changes from v1:
----------------
 - Correct the value written [Caught by David Laight]

Fixes: fe56b9e6a8 ("qed: Add module with basic common support")
Signed-off-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 04:57:16 -04:00
David S. Miller
b20b378d49 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mediatek/mtk_eth_soc.c
	drivers/net/ethernet/qlogic/qed/qed_dcbx.c
	drivers/net/phy/Kconfig

All conflicts were cases of overlapping commits.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-12 15:52:44 -07:00
Baoyou Xie
ba56947a33 qed: mark symbols static where possible
We get a few warnings when building kernel with W=1:
drivers/net/ethernet/qlogic/qed/qed_l2.c:112:5: warning: no previous prototype for 'qed_sp_vport_start' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:110:6: warning: no previous prototype for 'qed_iov_is_valid_vfid' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:188:5: warning: no previous prototype for 'qed_iov_post_vf_bulletin' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:578:6: warning: no previous prototype for 'qed_iov_set_vfs_to_disable' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:1135:28: warning: no previous prototype for 'qed_iov_get_public_vf_info' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:1148:6: warning: no previous prototype for 'qed_iov_clean_vf' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:2444:5: warning: no previous prototype for 'qed_iov_chk_ucast' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:2762:5: warning: no previous prototype for 'qed_iov_vf_flr_cleanup' [-Wmissing-prototypes]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-09 19:37:00 -07:00
Baoyou Xie
9438451e73 qede: mark qede_set_features() static
We get 1 warning when building kernel with W=1:
drivers/net/ethernet/qlogic/qede/qede_main.c:2113:5: warning: no previous prototype for 'qede_set_features' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
so this patch marks this function with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-09 18:16:46 -07:00
Tomer Tayar
e0971c832a qed*: Add support for the ethtool get_regs operation
Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-07 17:46:59 -07:00
Tomer Tayar
c965db4446 qed: Add support for debug data collection
This patch adds the support for dumping and formatting the HW/FW debug data.

Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-07 17:46:59 -07:00
Baoyou Xie
72e8d5fdf5 qed: add missing header dependencies
We get 4 warnings when building kernel with W=1:
drivers/net/ethernet/qlogic/qed/qed_selftest.c:6:5: warning: no previous prototype for 'qed_selftest_memory' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_selftest.c:19:5: warning: no previous prototype for 'qed_selftest_interrupt' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_selftest.c:32:5: warning: no previous prototype for 'qed_selftest_register' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_selftest.c:55:5: warning: no previous prototype for 'qed_selftest_clock' [-Wmissing-prototypes]

In fact, these functions are declared in qed_selftest.h, so this patch
add missing header dependencies.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-07 17:40:19 -07:00
Tomer Tayar
4102426f9b qed: Add infrastructure for debug data collection
Adds support for several infrastructure operations that are done as part of
debug data collection.

Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-06 14:24:02 -07:00
Joe Perches
2591c280c3 qed: Remove OOM messages
These messages are unnecessary as OOM allocation failures already do
a dump_stack() giving more or less the same information.

$ size drivers/net/ethernet/qlogic/qed/built-in.o* (defconfig x86-64)
   text	   data	    bss	    dec	    hex	filename
 127817	  27969	  32800	 188586	  2e0aa	drivers/net/ethernet/qlogic/qed/built-in.o.new
 132474	  27969	  32800	 193243	  2f2db	drivers/net/ethernet/qlogic/qed/built-in.o.old

Miscellanea:

o Change allocs to the generally preferred forms where possible.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-06 13:54:32 -07:00
Roopa Prabhu
d297653dd6 rtnetlink: fdb dump: optimize by saving last interface markers
fdb dumps spanning multiple skb's currently restart from the first
interface again for every skb. This results in unnecessary
iterations on the already visited interfaces and their fdb
entries. In large scale setups, we have seen this to slow
down fdb dumps considerably. On a system with 30k macs we
see fdb dumps spanning across more than 300 skbs.

To fix the problem, this patch replaces the existing single fdb
marker with three markers: netdev hash entries, netdevs and fdb
index to continue where we left off instead of restarting from the
first netdev. This is consistent with link dumps.

In the process of fixing the performance issue, this patch also
re-implements fix done by
commit 472681d57a ("net: ndo_fdb_dump should report -EMSGSIZE to rtnl_fdb_dump")
(with an internal fix from Wilson Kok) in the following ways:
- change ndo_fdb_dump handlers to return error code instead
of the last fdb index
- use cb->args strictly for dump frag markers and not error codes.
This is consistent with other dump functions.

Below results were taken on a system with 1000 netdevs
and 35085 fdb entries:
before patch:
$time bridge fdb show | wc -l
15065

real    1m11.791s
user    0m0.070s
sys 1m8.395s

(existing code does not return all macs)

after patch:
$time bridge fdb show | wc -l
35085

real    0m2.017s
user    0m0.113s
sys 0m1.942s

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-01 16:56:15 -07:00
Wu Fengguang
561ed23331 qed: fix kzalloc-simple.cocci warnings
drivers/net/ethernet/qlogic/qed/qed_dcbx.c:1230:13-20: WARNING: kzalloc should be used for dcbx_info, instead of kmalloc/memset
drivers/net/ethernet/qlogic/qed/qed_dcbx.c:1192:13-20: WARNING: kzalloc should be used for dcbx_info, instead of kmalloc/memset

 Use kzalloc rather than kmalloc followed by memset with 0

 This considers some simple cases that are common and easy to validate
 Note in particular that there are no ...s in the rule, so all of the
 matched code has to be contiguous

Generated by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci

CC: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-01 09:47:36 -07:00
Sudarsana Reddy Kalluru
c5e801dac4 qed: Clear dcbx memory buffers before the usage.
This patch takes care of clearing the uninitialized buffer before using it.
1. pfc pri-enable bitmap need to be cleared before setting the requested
   enable bits. Without this, the un-touched values will be merged with
   requested values and sent to MFW.
2. The data in app-entry field need to be cleared before using it.
3. Clear the output data buffer used in qed_dcbx_query_params().

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 21:03:46 -07:00
Sudarsana Reddy Kalluru
5ec5dfa4d2 qed: Set selection-field while configuring the app entry in ieee mode.
Management firmware requires the selection-field (SF) to be set for
configuring the application/protocol entry in IEEE mode. Without this
setting, the app entry will be configured incorrectly in MFW.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 21:03:46 -07:00
Sudarsana Reddy Kalluru
5fe118c9fd qed*: Disallow dcbx configuration for VF interfaces.
Dcbx configuration is not supported for VF interfaces. Hence don't populate
the callbacks for VFs and also fail the dcbx-query for VFs.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 21:03:46 -07:00
Arnd Bergmann
84fd1b191a qede: hide 32-bit compile warning
The addition of the per-queue statistics introduced a harmless warning
on all 32-bit architectures:

drivers/net/ethernet/qlogic/qede/qede_ethtool.c: In function 'qede_get_ethtool_stats':
drivers/net/ethernet/qlogic/qede/qede_ethtool.c:244:31: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
      buf[cnt++] = QEDE_TQSTATS_DATA(edev,
                               ^
drivers/net/ethernet/qlogic/qede/qede_ethtool.c:244:22: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
      buf[cnt++] = QEDE_TQSTATS_DATA(edev,
                      ^
This changes the cast to 'void *' to shut up the warning, which
avoids the assumptions on the size of the pointer type.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 68db9ec2df ("qede: Add support for per-queue stats.")
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-30 23:35:15 -07:00
David S. Miller
6abdd5f593 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
All three conflicts were cases of simple overlapping
changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-30 00:54:02 -04:00
Sudarsana Reddy Kalluru
9a4d7e86ac qede: Add support for Tx/Rx-only queues.
Add provision for configuring the fastpath queues with Tx (or Rx) only
functionality.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23 17:11:54 -07:00
Yuval Mintz
b0bccb69eb qed: Change locking scheme for VF channel
Each VF employees a lock that's supposed to serialize its usage of the
HW channel for communication with its PF, but the critical section is
ill-defined:

  - VFs currently release the lock whenever the PF response arrives,
    prior to actually processing the reply buffer [which was also supposed
    to have been protected by same lock].

  - The lock would be released on first response, ignoring the possibilty
    the sw flow isn't over [as might be the case of the acquisition flow].
    As a result, the flow would run unprotected and would cause a double
    mutex release [as the additional message completion would release it
    while its actually already free].

Change the flow to have a dedicated function to be called at end of each
flow and release the lock.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 18:24:52 -07:00
Yuval Mintz
d8c2c7e340 qed*: Add support for VFs over legacy PFs
Modern VFs can't run on old non-compatible as the fastpath HSI is
slightly changed - but as the HSI is actually very close [basically,
a single bit whose meaning flipped] this can be supported with small
modifications.

The major differences would be in:
  - Recognizing that VF is running on top of a legacy PF.
  - Returning some slowpath configurations that are no longer needed
    on top of modern PFs, but would be required when working over
    the legacy ones.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 18:24:52 -07:00
Yuval Mintz
11a85d759e qed: Prevent VFs from pause flooding
Firmware would silently drop any control frame sent by VF to prevent
a malicious VF from generating pause flood in the network.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 18:24:52 -07:00
Yuval Mintz
a044df83e1 qed: Add support for legacy VFs
The 8.10.x FW added support for forward compatability as well as
'future' backward compatibility, but only to those VFs that were
using HSI which was 8.10.x based or newer.

The latest firmware now supports backward compatibility for the
older VFs based on 8.7.x and 8.8.x firmware as well.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 18:24:51 -07:00
Yuval Mintz
4870e704d9 qed: FLR of active VFs might lead to FW assert
Driver never bothered marking the VF's vport with the VF's sw_fid.
As a result, FLR flows are not going to clean those vports.

If the vport was active when FLRed, re-activating it would lead
to a FW assertion.

Fixes: dacd88d6f6 ("qed: IOV l2 functionality")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22 18:11:38 -07:00
Yuval Mintz
05fafbfb3d qed: utilize FW 8.10.10.0
This new firmware for the qed* adpaters fixes several issues:
 - Better blocking of malicious VFs.
 - After FLR, Tx-switching [internal routing] of packets might
   be incorrect.
 - Deletion of unicast MAC filters would sometime have side-effect
   of corrupting the MAC filters configred for a device.
It also contains fixes for future qed* drivers that *hopefully* would be
sent for review in the near future.

In addition, it would allow driver some new functionality, including:
 - Allowing PF/VF driver compaitibility with old drivers [running
   pre-8.10.5.0 firmware].
 - Better debug facilities.

This would also bump the qed* driver versions to 8.10.9.20.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:57:06 -07:00
Yuval Mintz
16d5946a7c qede: Fix forcing high speeds
While '0xdead' and '0xbeef' are "great" values, we should
use the correct SPEED_* values instead.

Fixes: 054c67d1c8 ("qed*: Add support for ethtool link_ksettings callbacks")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:04:40 -07:00
Yuval Mintz
d194fd265e qed*: Fix pause setting
When moving into using ethtool's link_ksetting, qed started
supplying its own bitmask of speed/capabilities, but qede
is still checking for the SUPPORTED value to determine whether
it supports pause.

Fixes: 054c67d1c8 ("qed*: Add support for ethtool link_ksettings callbacks")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:04:40 -07:00
Yuval Mintz
039a392733 qede: Fix Tx timeout due to xmit_more
Driver uses netif_tx_queue_stopped() to make sure the xmit_more
indication will be honored, but that only checks for DRV_XOFF.

At the same time, it's possible that during transmission the DQL will
close the transmission queue with STACK_XOFF indication.
In re-configuration flows, when the threshold is relatively low, it's
possible that the device has no pending tranmissions, and during
tranmission the driver would miss doorbelling the HW.
Since there are no pending transmission, there will never be a Tx
completion [and thus the DQL would not remove the STACK_XOFF indication],
eventually causing the Tx queue to timeout.

While we're at it - also doorbell in case driver has to close the
transmission queue on its own [although this one is less important -
if the ring is full, we're bound to receive completion eventually,
which means the doorbell would only be postponed and not indefinetly
blocked].

Fixes: 312e06761c ("qede: Utilize xmit_more")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 21:12:57 -07:00
Sudarsana Reddy Kalluru
6c75424612 qed: Add support for NCSI statistics.
The patch adds driver support for sending the NCSI statistics to the
MFW. This is an asynchronous request from MFW. Upon receiving this, driver
populates the required data and send it to MFW.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 21:11:45 -07:00
Sudarsana Reddy Kalluru
68db9ec2df qede: Add support for per-queue stats.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 21:11:45 -07:00
Sudarsana Reddy Kalluru
1a5a366f08 qede: Add support for capturing additional stats in ethtool-stats display.
The patch adds driver support for capturing stats ttl0_discard and
packet_too_big_discard in "ethtool -S" display.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 21:11:45 -07:00
David S. Miller
60747ef4d1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes for both merge conflicts.

Resolution work done by Stephen Rothwell was used
as a reference.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 01:17:32 -04:00
Yuval Mintz
525ef5c07f qed*: Add and modify some prints
This patch touches various prints in the driver - it reduces the
verbosity of some prints [which were previously logged by default]
while adding several new debug prints and modifying others.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 13:34:52 -07:00
Yuval Mintz
83aeb9339f qed*: Trivial modifications
Change qed* code in trivial manner; This isn't necessarily
semantic-only, but the end result is the same, i.e., no change
should occur from user perspective. Changes include:
  - Using temporary variables to better fit 80-character restrictions.
  - Removal of unused variables & code with no effect.
[plus some additional minor modifications].

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 13:34:52 -07:00
Yuval Mintz
1a635e488e qed*: Semantic changes
Make semantic-only adjustments to qed* drivers, such as:
  - Changes in code indentation.
  - Usage of BIT() macro.
  - re-naming of variables.
  - Re-ordering of variable declerations.
  - Removal of (== 0) and (!= 0) in conditions.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15 13:34:52 -07:00
Wei Yongjun
02ee9b18de qed: Fix possible memory leak in qed_dcbnl_get_ieee_pfc()
'dcbx_info is malloced in qed_dcbnl_get_ieee_pfc() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Fixes: a1d8d8a51e ("qed: Add dcbnl support.")
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14 21:21:37 -07:00
Sudarsana Reddy Kalluru
054c67d1c8 qed*: Add support for ethtool link_ksettings callbacks.
This patch adds the driver implementation for ethtool link_ksettings
callbacks. qed driver now defines/uses the qed specific masks for
representing link capability values. qede driver maps these values to
to new link modes defined by the kernel implementation of link_ksettings.

Please consider applying this to 'net-next' branch.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-10 17:36:02 -07:00
Sudarsana Reddy Kalluru
1d7406ce7b qed: Update app count when adding a new dcbx app entry to the table.
App count is not updated while adding new app entry to the dcbx app table.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-08 22:22:20 -07:00
Sudarsana Reddy Kalluru
59bcb7972f qed: Add dcbx app support for IEEE Selection Field.
MFW now supports the Selection field for IEEE mode. Add driver changes to
use the newer MFW masks to read/write the port-id value.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-08 22:22:20 -07:00
Sudarsana Reddy Kalluru
fb9ea8a9b7 qed: Use ieee mfw-mask to get ethtype in ieee-dcbx mode.
Ethtype value is being read incorrectly in ieee-dcbx mode. Use the
correct mfw mask value.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-08 22:22:19 -07:00
Sudarsana Reddy Kalluru
c0c45a6bd7 qed: Remove the endian-ness conversion for pri_to_tc value.
Endian-ness conversion is not needed for priority-to-TC field as the
field is already being read/written by the driver in big-endian way.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-08 22:22:19 -07:00
Wei Yongjun
0caf5b261b qed: Use DEFINE_SPINLOCK() for spinlock
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-08 16:05:16 -07:00
Manish Chopra
b8b2372de9 qlcnic: Update version to 5.3.65
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
Manish Chopra
fc4ca987f7 qlcnic: fix napi budget alteration
Driver modifies the supplied NAPI budget in qlcnic_83xx_msix_tx_poll()
function. Instead, it should use the budget as it is.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
Manish Chopra
2b10d3ecf2 qlcnic: fix data structure corruption in async mbx command handling
This patch fixes a data structure corruption bug in the SRIOV VF mailbox
handler code. While handling mailbox commands from the atomic context,
driver is accessing and updating qlcnic_async_work_list_struct entry fields
in the async work list. These fields could be concurrently accessed by the
work function resulting in data corruption.

This patch restructures async mbx command handling by using a separate
async command list instead of using a list of work_struct structures.
A single work_struct is used to schedule and handle the async commands
with proper locking mechanism.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
Sudarsana Reddy Kalluru
1d2c2024dc qed: Fail driver load in 100g MSI mode.
100g support is not available in MSI mode. Failing the driver load in this scenario.

Please consider applying this to `net'.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 22:13:59 -07:00
Wei Yongjun
1b4985b5e8 qed: Fix error return code in qed_resc_alloc()
Fix to return error code -EINVAL instead of 0 when EQ elements is
too larger, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:37:35 -07:00
xypron.glpk@gmx.de
43dcff349f net: qlcnic: avoid superfluous assignement
Assigning NULL to parmeter dcb has no effect outside of the
inlined function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 13:47:00 -07:00
xypron.glpk@gmx.de
41fc1e0fe2 qed: do not use unitialized variable
Do not write random bytes from the kernel stack when
calling qed_wr.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 13:32:53 -07:00
xypron.glpk@gmx.de
4fb482f737 net: qlge: remove superfluous statement
Variable length is not used after the deleted line.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 13:32:52 -07:00
Yuval Mintz
25eb8d46e4 qed: Prevent over-usage of vlan credits by PF
Each PF/VF has a limited number of vlan filters for
configuration purposes; This information is passed to qede
and is used to prevent over-usage - once a vlan is to be
configured and no filter credit is available, the driver
would switch into working in vlan-promisc mode.

Problem is the credit pool is shared by both PFs and VFs,
and currently PFs aren't deducting the filters that are
reserved for their VFs from their quota, which may lead
to some vlan filters failing unknowingly due to lack of credit.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:34:03 -07:00
Yuval Mintz
d572c4308f qed: Correct min bandwidth for 100g
Driver uses reverse logic when checking if minimum
bandwidth configuration applied, causing it to
configure the guarantee only on the first hw-function.

Fixes: a0d26d5a4f ("qed*: Don't reset statistics on inner reload")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:34:03 -07:00
Yuval Mintz
7f7a144fc5 qede: Reset statistics on explicit down
Adding the necessary logic to prevet statistics reset
on inner-reload introduced a bug, and now statistics
are reset only when re-probing the driver.

Fixes: a0d26d5a4f ("qed*: Don't reset statistics on inner reload")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:34:03 -07:00
Yuval Mintz
b21290b77f qed: Don't over-do producer cleanup for Rx
Before requesting the firmware to start Rx queues,
driver goes and sets the queue producer in the device to 0.
But while the producer is 32-bit, the driver currently clears 64 bits,
effectively zeroing an additional CID's producer as well.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:34:03 -07:00
Yuval Mintz
cb1fa08877 qed: Fix removal of spoof checking for VFs
Driver has reverse logic for checking the result of the
spoof-checking configuration. As a result, it would log that
the configuration failed [even though it succeeded], and will
no longer do anything when requested to remove the configuration,
as it's accounting of the feature will be incorrect.

Fixes: 6ddc760825 ("qed*: IOV support spoof-checking")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:33:53 -07:00
Yuval Mintz
c524e2f5b7 qede: Don't try removing unconfigured vlans
As part of ndo_vlan_rx_kill_vid() implementation,
qede is requesting firmware to remove the vlan filter.
This currently happens even if the vlan wasn't previously
added [In case device ran out of vlan credits].

For PFs this doesn't cause any issues as the firmware
would simply ignore the removal request. But for VFs their
parent PF is holding an accounting of the configured vlans,
and such a request would cause the PF to fail the VF's
removal request.

Simply fix this for both PFs & VFs and don't remove filters
that were not previously added.

Fixes: 7c1bfcad9f ("qede: Add vlan filtering offload support")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 20:33:53 -07:00
Manish Chopra
59d3f1ceb6 qed: Fix setting/clearing bit in completion bitmap
Slowpath completion handling is incorrectly changing
SPQ_RING_SIZE bits instead of a single one.

Fixes: 76a9a3642a ("qed: fix handling of concurrent ramrods")
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 21:41:19 -07:00
David S. Miller
30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
Manish Chopra
831a8e6c40 qede: Bump up driver version to 8.10.1.20
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:40:53 -04:00
Manish Chopra
3d789994b0 qede: Add get/set rx copy break tunable support
Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:40:53 -04:00
Manish Chopra
312e06761c qede: Utilize xmit_more
This patch uses xmit_more optimization to reduce
number of TX doorbells write per packet.

Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:40:53 -04:00
Manish Chopra
c774169d8f qede: qede_poll refactoring
This patch cleanups qede_poll() routine a bit
and allows qede_poll() to do single iteration to handle
TX completion [As under heavy TX load qede_poll() might
run for indefinite time in the while(1) loop for TX
completion processing and cause CPU stuck].

Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:40:53 -04:00
Manish Chopra
c72a6125d0 qede: Add support for handling IP fragmented packets.
When handling IP fragmented packets with csum in their
transport header, the csum isn't changed as part of the
fragmentation. As a result, the packet containing the
transport headers would have the correct csum of the original
packet, but one that mismatches the actual packet that
passes on the wire. As a result, on receive path HW would
give an indication that the packet has incorrect csum,
which would cause qede to discard the incoming packet.

Since HW also delivers a notification of IP fragments,
change driver behavior to pass such incoming packets
to stack and let it make the decision whether it needs
to be dropped.

Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:40:53 -04:00
Sony Chacko
9216a97a12 qlcnic: add wmb() call in transmit data path.
Call wmb() to ensure writes are complete before
hardware fetches updated Tx descriptors.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 04:59:49 -04:00
David S. Miller
ee58b57100 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, except the packet scheduler
conflicts which deal with the addition of the free list parameter
to qdisc_enqueue().

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 05:03:36 -04:00
Sudarsana Reddy Kalluru
34c7bb4705 qed: Protect the doorbell BAR with the write barriers.
SPQ doorbell is currently protected with the compilation barrier. Under the
stress scenarios, we may get into a state where (due to the weak ordering)
several ramrod doorbells were written to the BAR with an out-of-order
producer values. Need to change the barrier type to a write barrier to make
sure that the write buffer is flushed after each doorbell.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-29 08:12:45 -04:00
Sudarsana Reddy Kalluru
d2890dea29 qede: Fix the static checker warnings.
Static checker warnings:
drivers/net/ethernet/qlogic/qede/qede_ethtool.c:435 qede_get_coalesce()
warn: passing casted pointer '&coal->rx_coalesce_usecs' to
'edev->ops->common->get_coalesce()' 32 vs 16.

The u32 pointer is being typecasted to u16 which may fail for big-endian
platforms.

Fixes: d552fa84cb ("qede: Add support for coalescing config read/update.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-29 07:53:35 -04:00
Sudarsana Reddy Kalluru
51d9988087 qed: Fix static checker warnings.
Static checker warnings:
drivers/net/ethernet/qlogic/qed/qed_int.c:2450 qed_init_cau_sb_entry()
warn: always true condition '(cdev->rx_coalesce_usecs <= 255) =>
(0-255 <= 255)'
drivers/net/ethernet/qlogic/qed/qed_int.c:2511 qed_int_cau_conf_sb()
warn: always true condition '(p_hwfn->cdev->rx_coalesce_usecs <= 255)
=> (0-255 <= 255)'
..

The data types for rx/tx_coalesce_usecs should be u16.

Fixes: commit 722003ac40 ("qed: Add support for coalescing config read/update.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-29 07:53:35 -04:00
Dan Carpenter
5b4d10f5e0 qlcnic: use the correct ring in qlcnic_83xx_process_rcv_ring_diag()
There is a static checker warning here "warn: mask and shift to zero"
and the code sets "ring" to zero every time.  From looking at how
QLCNIC_FETCH_RING_ID() is used in qlcnic_83xx_process_rcv_ring() the
qlcnic_83xx_hndl() should be removed.

Fixes: 4be41e92f7 ('qlcnic: 83xx data path routines')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-29 05:46:16 -04:00
Sudarsana Reddy Kalluru
d552fa84cb qede: Add support for coalescing config read/update.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23 15:56:46 -04:00
Sudarsana Reddy Kalluru
722003ac40 qed: Add support for coalescing config read/update.
This patch adds support for configuring the device tx/rx coalescing
timeout values in the order of micro seconds. It also adds APIs for
upper layer drivers for reading/updating the coalescing values.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23 15:56:46 -04:00
Yuval Mintz
b639f19721 qed: Add missing port-mode
The 'MODULE_FIBER' value replaced several other FIBER values
in newer management firmware images, so existing code would
fail to properly reflect its mode.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19 10:47:33 -07:00
Yuval Mintz
db511c37d4 qed: Fix returning unlimited SPQ entries
Driver has 2 sets of entries for handling ramrod configurations
toward firmware - a regular pre-allocated set of entires and a
possible 'unlimited' list of additional pending entries.

In most scenarios the 'unlimited' list would not be used, but
when it does the handling of the ramrod completion doesn't
properly handle the release of the entry.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19 10:47:32 -07:00
Yuval Mintz
a0d26d5a4f qed*: Don't reset statistics on inner reload
Several user APIs can cause driver to perform an inner-reload.
Currently, doing this would cause the HW/FW statistics of the
adapter to reset, which isn't the expected behavior [statistics
should only reset on explicit unloads].

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19 10:47:32 -07:00
Yuval Mintz
326439883e qed: Prevent VF from Tx-switching 'promisc'
Internal loopback in driver is based on two things - first
is the willingness of transmitter to use it [in case of VFs,
this can be forced based on VEPA/VEB] and secondly on another
vport classification configuration which should match the
packet's destination.

Current code allows non-linux VFs to configure a 'promisc'
mode on Tx, meaning all traffic sent by VF would be loopbacked
internally by firmware; This isn't considered a valid mode and
as such should be prevented by PF.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19 10:47:32 -07:00
Yuval Mintz
e6bd89232b qed: Correct default vlan behavior
When no vlan filter is configured, firmware has a configurable
default on whether to pass only untagged packets or all packets
regardless of their tagging. Driver currently doesn't set this
field in the necessary ramrod, causing the default to always be
'receive all'.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19 10:47:32 -07:00
Alexander Duyck
5e44f8e299 qlcnic: Replace ndo_add/del_vxlan_port with ndo_add/del_udp_enc_port
This change replaces the network device operations for adding or removing a
VXLAN port with operations that are more generically defined to be used for
any UDP offload port but provide a type.  As such by just adding a line to
verify that the offload type is VXLAN we can maintain the same
functionality.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-17 20:23:31 -07:00
Alexander Duyck
f9f082a9b9 qede: Move all UDP port notifiers to single function
This patch goes through and combines the notifiers for VXLAN and GENEVE
into a single function for each action.  So there is now one combined
function for getting ports, one for adding the ports, and one for deleting
the ports.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-17 20:23:31 -07:00
Arnd Bergmann
287debd6aa net: qlcnic: don't set unused function argument
We get a warning for qlcnic_83xx_get_mac_address when building with
"make W=1":

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c: In function 'qlcnic_83xx_get_mac_address':
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c:2156:8: error: parameter 'function' set but not used [-Werror=unused-but-set-parameter]

Clearly this is harmless, but there is also no point for setting
the variable, so we can simply remove the assignment.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16 17:33:11 -07:00
David S. Miller
1578b0a5e9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/sched/act_police.c
	net/sched/sch_drr.c
	net/sched/sch_hfsc.c
	net/sched/sch_prio.c
	net/sched/sch_red.c
	net/sched/sch_tbf.c

In net-next the drop methods of the packet schedulers got removed, so
the bug fixes to them in 'net' are irrelevant.

A packet action unload crash fix conflicts with the addition of the
new firstuse timestamp.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-10 11:52:24 -07:00
Sudarsana Reddy Kalluru
489e45ae42 qede: Add dcbnl support.
This patch adds the interfaces for ieee/cee dcbnl callbacks and registers
them with the kernel.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-08 11:11:00 -07:00
Sudarsana Reddy Kalluru
a1d8d8a51e qed: Add dcbnl support.
This patch adds the implementation for both cee/ieee dcbnl callbacks by
using the qed query/config APIs.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-08 11:11:00 -07:00
Sudarsana Reddy Kalluru
6ad8c632ee qed: Add support for query/config dcbx.
Query API reads the dcbx data from the device shared memory and return it
to the caller. The config API configures the user provided dcbx values on
the device, and initiates the dcbx negotiation with the peer.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-08 11:10:59 -07:00
Dan Carpenter
01e517f16e qed: potential overflow in qed_cxt_src_t2_alloc()
In the current code "ent_per_page" could be more than "conn_num" making
"conn_num" negative after the subtraction.  In the next iteration
through the loop then the negative is treated as a very high positive
meaning we don't put a limit on "ent_num".  It could lead to memory
corruption.

Fixes: dbb799c397 ('qed: Initialize hardware for new protocols')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-08 00:33:25 -07:00
Yuval Mintz
54fdd80f6f qed: PF to reply to unknown messages
If a future VF would send the PF an unknown message, the PF today would
not send a reply. This would have 2 bad effects:
  a. VF would have to timeout on the request.
  b. If VF were to send an additional message to PF, firmware would mark
     it as malicious.

Instead, if there's some valid reply-address on the message - let the PF
answer and tell the VF it doesn't know the message.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:12 -07:00
Yuval Mintz
8246d0b48b qed: PF enforce MAC limitation of VFs
The only limitation relating to MACs the PF enforce today on its VFs
is in case it has a forced-unicast MAC address for them, in which case
they can't configure other unicast addresses.
Specifically, the PF isn't enforcing the number of MAC addresse a VF can
configure regardless of the nubmer of such filters agreed upon by PF and
VF during the acquisition process.

PF's shadow-config is now extended to also contain information about its
VFs' unicast addresses configuration, allowing such enforcement.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:12 -07:00
Yuval Mintz
5040acf537 qed: Move doorbell calculation from VF to PF
Today, the VF is aware of its queues context-ids, and calculates the
doorbell address when opening its queues on its own.
The configuration of doorbells in HW can sometime in the future be changed
by the PF [hw has several configurable features that might affect doorbell
addresses, e.g., dpm support], this would break compatibility with older
VFs as their calculated doorbell addresses would be incorrect for such a
configuration.

In order to avoid such a backward compatibility failure, let the PF make
the calculation of the doorbell offset based on the context-id, and pass
that to the VF.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:11 -07:00
Yuval Mintz
41086467d6 qed: Make PF more robust against malicious VF
There are several requests the VF can make toward the PF which the driver
would pass to firmware without checking the validity first - specifically,
opening queues and updating vports. Such configurations might cause the
firmware to assert.

This adds validation of the legality of said configurations on the PF side
before passing it onward via ramrod to firmware.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:11 -07:00
Yuval Mintz
1cf2b1a971 qed: PF-VF resource negotiation
One of the goals of the vf's first message to the PF [acquire]
is to learn about the number of resources available to it [macs, vlans,
etc.]. This is done via negotiation - the VF requires a set of resources,
which the PF either approves or disaproves and sends a smaller set of
resources as alternative. In this later case, the VF is then expected to
either abort the probe or re-send the acquire message with less
required resources.

While this infrastructure exists since the initial submision of qed
SRIOV support, it's in fact completely inoperational - PF isn't really
looking into the resources the VF has asked for and is never going to
reply to the VF that it lacks resources.

This patch addresses this flow, fixing it and allowing the PF and VF
to actually agree on a set of resources.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:11 -07:00
Yuval Mintz
1fe614d10f qed: Relax VF firmware requirements
Current driver require an exact match between VF and PF storm firmware;
Any difference would fail the VF acquire message, causing the VF probe
to be aborted.

While there's still dependencies between the two, the recent FW submission
has relaxed the match requirement - instead of an exact match, there's now
a 'fastpath' HSI major/minor scheme, where VFs and PFs that match in their
major number can co-exist even if their minor is different.

In order to accomadate this change some changes in the vf-start init flow
had to be made, as the VF start ramrod now has to be sent only after PF
learns which fastpath HSI its VF is requiring.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:40:11 -07:00
Yuval Mintz
dbb799c397 qed: Initialize hardware for new protocols
RoCE and iSCSI would require some added/changed hw configuration in order
to properly run; The biggest single change being the requirement of
allocating and mapping host memory for several HW blocks that aren't being
used by qede [SRC, QM, TM, etc.].

In addition, whereas qede is only using context memory for HW blocks, the
new protocol would also require task memories to be added.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-03 20:08:40 -04:00
Yuval Mintz
c5ac93191d qed: Add iscsi/rdma personalities
This patch adds in the ecore 2 new personalities in addition to
QED_PCI_ETH - QED_PCI_ISCSI and QED_PCI_ETH_ROCE.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-03 20:08:39 -04:00
Yuval Mintz
7a9b6b8f6e qed: Add common HSI for new protocols
This adds the qed portion of the RoCE & iSCSI firmware HSI,
as well as adding several new common HSI files which would be required
by both qed and qed* protocols.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-03 20:08:39 -04:00
Yuval Mintz
a91eb52abb qed: Revisit chain implementation
RoCE driver is going to need a 32-bit chain [current chain implementation
for qed* currently supports only 16-bit producer/consumer chains].

This patch adds said support, as well as doing other slight tweaks and
modifications to qed's chain API.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-03 20:08:39 -04:00
Yuval Mintz
351a4dedb3 qed: Utilize FW 8.10.3.0
The New QED firmware contains several fixes, including:
  - Wrong classification of packets in 4-port devices.
  - Anti-spoof interoperability with encapsulated packets.
  - Tx-switching of encapsulated packets.
It also slightly improves Tx performance of the device.

In addition, this firmware contains the necessary logic for
supporting iscsi & rdma, for which we plan on pushing protocol
drivers in the imminent future.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-02 21:30:03 -07:00
Arnd Bergmann
14b84e8654 qed: fix qed_fill_link() error handling
gcc warns about qed_fill_link possibly accessing uninitialized data:

drivers/net/ethernet/qlogic/qed/qed_main.c: In function 'qed_fill_link':
drivers/net/ethernet/qlogic/qed/qed_main.c:1170:35: error: 'link_caps' may be used uninitialized in this function [-Werror=maybe-uninitialized]

While this warning is only about the specific case of CONFIG_QED_SRIOV
being disabled but the function getting called for a VF (which should
never happen), another possibility is that qed_mcp_get_*() fails without
returning data.

This rearranges the code so we bail out in either of the two cases
and print a warning instead of accessing the uninitialized data.

The qed_link_output structure remains untouched in this case, but
all callers first call memset() on it, so at least we are not leaking
stack data then.

As discussed, we also use a compile-time check to ensure we never
use any of the VF code if CONFIG_QED_SRIOV is disabled, and the
PCI device table is updated to no longer bind to virtual functions
in that configuration.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-01 22:04:54 -07:00
Yuval Mintz
3e7cfce228 qed: Don't config min BW on 100g on link flap
Currently 100g devices don't support minimum/maximum BW configurations,
yet link flaps might cause the driver to attempt to do such a
configuration. Prevent this just as we do for the maximum BW.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-26 12:27:33 -07:00
Sudarsana Reddy Kalluru
bb13ace7dc qed: Prevent 100g from working in MSI
Adapter can support 100g in both MSIx and INTa, but not in MSI.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-26 12:27:33 -07:00
Yuval Mintz
1af9dcf7f9 qed: Add missing 100g init mode
Some of the HW configurations are currently missing for 100g devices.
This can cause various classification issues, as well as prevent device
from fully reaching line-rate.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-26 12:27:33 -07:00