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  1. 24 3月, 2017 5 次提交
    • M
      qed: Don't waste SBs unused by RoCE · 810bb1f0
      由 Mintz, Yuval 提交于 
      When RoCE is enabled on a given L2 interface, the interrupt lines
are divided equally between L2 and RoCE -
But in case number of lines needed for RoCE is limited by number
of available CNQs, we can utilize the additional lines for L2.
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      810bb1f0
    • M
      qed: Reduce verbosity of unimplemented MFW messages · 39815944
      由 Mintz, Yuval 提交于 
      Management firmware and driver are meant to be both backward and forward
compatibile with each other.

If a new mangement firmware would work with an older driver,
it's possible that driver would receive indications which are meaningless
to it. That's perfectly acceptible from the firmware part - so no need to
log such messages at default verbosity; That would only serve to confuse
users.
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      39815944
    • M
      qed: Correct endian order of MAC passed to MFW · 17991002
      由 Mintz, Yuval 提交于 
      The management firmware is running on a Big Endian processor,
and when running on LE platform HW is configured to swap access
to memory shared between management firmware and driver on
32-bit granulariy.

As a result, for matters of simplicity most of the APIs between
driver and management firmware are based on 32-bit variables.
MAC settings are one exception, as driver needs to fill a byte
array when indicating to management firmware that primary MAC
has changed.
Due to the swap, driver must make sure that the mac that was
provided in byte-order would be translated into native order,
otherwise after the swap the management firmware would read
it swapped.
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      17991002
    • T
      qed: Pass src/dst sizes when interacting with MFW · 2f67af8c
      由 Tomer Tayar 提交于 
      The driver interaction with management firmware involves a union
of all the data-members relating to the commands the driver prepares.

Current interface assumes the caller always passes such a union -
but thats cumbersome as well as risky [chancing a stack corruption
in case caller accidentally passes a smaller member instead of union].

Change implementation so that caller could pass a pointer to any
of the members instead of the union.
Signed-off-by: NTomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2f67af8c
    • T
      qed: Revise MFW command locking · 4ed1eea8
      由 Tomer Tayar 提交于 
      Interaction of driver -> management firmware is based
on a one-pending mailbox [per interface], and various
mailbox commands need to be synchronized.

Current scheme is messy, and there's a difficulty extending
it as it deals differently with various commands as well as
making assumption on the required behavior for load/unload
requests.

Drop the current scheme into a completion-list-based approach;
Each flow would try sending the command when possible,
allowing one flow to complete another flow's completion and
relieve the mailbox before sending its own command.
Signed-off-by: NTomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4ed1eea8
  3. 22 3月, 2017 9 次提交
  5. 16 3月, 2017 1 次提交
  7. 15 3月, 2017 8 次提交
  9. 14 3月, 2017 1 次提交
  11. 10 3月, 2017 3 次提交
  13. 28 2月, 2017 1 次提交
  15. 27 2月, 2017 2 次提交
    • M
      qed: Don't use attention PTT for configuring BW · 6f437d43
      由 Mintz, Yuval 提交于 
      Commit 653d2ffd6405 ("qed*: Fix link indication race") introduced another
race - one of the inner functions called from the link-change flow is
explicitly using the slowpath context dedicated PTT instead of gaining
that PTT from the caller. Since this flow can now be called from
a different context as well, we're in risk of the PTT breaking.

Fixes: 653d2ffd6405 ("qed*: Fix link indication race")
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6f437d43
    • M
      qed: Fix race with multiple VFs · fd3c615a
      由 Mintz, Yuval 提交于 
      A PF syncronizes all IOV activity relating to its VFs
by using a single workqueue handling the work.
The workqueue would reach a bitmask of pending VF events
and act upon each in turn.

Problem is that the indication of a VF message [which sets
the 'vf event' bit for that VF] arrives and is set in
the slowpath attention context, which isn't syncronized with
the processing of the events.
When multiple VFs are present, it's possible that PF would
lose the indication of one of the VF's pending evens, leading
that VF to later timeout.

Instead of adding locks/barriers, simply move from a bitmask
into a per-VF indication inside that VF entry in the PF database.
Signed-off-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fd3c615a
  17. 23 2月, 2017 2 次提交
    • B
      qlogic: netxen: constify bin_attribute structures · ff292458
      由 Bhumika Goyal 提交于 
      Declare bin_attribute structures as const as they are only passed as an
arguments to the functions device_remove_bin_file and
device_create_bin_file. These function arguments are of type const, so
bin_attribute structures having this property can be made const too.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct bin_attribute i@p = {...};

@ok1@
identifier r1.i;
position p,p1;
@@
(
device_remove_bin_file(...,&i@p)
|
device_create_bin_file(..., &i@p1)
)

@bad@
position p!={r1.p,ok1.p,ok1.p1};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct bin_attribute i;
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ff292458
    • B
      qlogic: qlcnic_sysfs: constify bin_attribute structures · 0ccea221
      由 Bhumika Goyal 提交于 
      Declare bin_attribute structures as const as they are only passed as an
arguments to the functions device_remove_bin_file and
device_create_bin_file. These function arguments are of type const, so
bin_attribute structures having this property can be made const too.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct bin_attribute i@p = {...};

@ok1@
identifier r1.i;
position p,p1;
@@
(
device_remove_bin_file(...,&i@p)
|
device_create_bin_file(..., &i@p1)
)

@bad@
position p!={r1.p,ok1.p,ok1.p1};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct bin_attribute i;
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0ccea221
  19. 21 2月, 2017 8 次提交