This change corrects the fact that we were using 1522 to test for the
max frame size in ixgbe_change_mtu and 1518 in ixgbe_set_vf_lpe.  The
difference was the addition of VLAN_HLEN which we only need to add in the case
of computing a buffer size, but not a filter size.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NSibai Li <Sibai.li@intel.com>
Tested-by: NStephen Ko <stephen.s.ko@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The rmb in the Tx cleanup path is a much stronger barrier than we really need.
All that is really needed is a read_barrier_depends since the location of the
EOP descriptor is dependent on the eop_desc value.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch removes the rval variable returns from function and replaces
them with direct returns in ixgbe_dcbnl_getnumtcs. It also changes how
ixgbe_gstrings_test is copied into data with memcpy in ixgbe_get_strings
because "*ixgbe_gstrings_test too small (32 vs 160)".
Signed-off-by: NJosh Hay <joshua.a.hay@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch adds a default case which goes to the next loop iteration
in the case where p is not set, preventing p from being dereferenced.
Signed-off-by: NJosh Hay <joshua.a.hay@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch adds functions needed for reading SFF-8472 diagnostic data
from SFP modules.

Based on original patch from Aurélien Guillaume <footplus@gmail.com>

CC: Aurélien Guillaume <footplus@gmail.com>
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Resolve the following strict checkpatch checks:
CHECK:BRACES: Blank lines aren't necessary after an open brace '{'
CHECK:BRACES: Blank lines aren't necessary before a close brace '}'
CHECK:BRACES: braces {} should be used on all arms of this statement
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

There are enough register offsets to warrant being in their own header
file, and doing so logically separates them from other header file content.
They have been converted from an enumerated data type to #defines as is
done in all the other Intel wired ethernet drivers.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines, function prototypes and data types which are applicable to
all/most devices supported by the driver but are specific to the
manageability component of each device to the new manage.h header file.
These #defines, function prototypes and data types can be used by other
files in the driver and moving them to the manageability-specific file
makes it clearer to which component they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines and function prototypes which are applicable to all/most
devices supported by the driver and are specific to the NVM component of
each device to the new nvm.h header file.  These #defines and function
prototypes can be used by other files in the driver and moving them to the
NVM-specific file makes it clearer to which component they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines and function prototypes which are applicable to all/most
devices supported by the driver and are specific to the PHY component of
each device to the new phy.h header file.  These function prototypes can be
used by other files in the driver and moving them to the PHY-specific file
makes it clearer to which component they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move prototypes for functions which are applicable to all/most devices
supported by the driver and are specific to the MAC component of each
device to the new mac.h header file.  These function prototypes can be used
by other files in the driver and moving them to the MAC-specific file makes
it clearer to which component they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines and function prototypes specific to the ICH/PCH family of
devices (ICH8/82562, ICH8/82566, ICH8/82567, ICH9/82562, ICH9/82566,
ICH9/82567, ICH10/82567, 82577, 82578, 82579, I217, I218) to the new
ich8lan.h header file (the convention for Intel wired ethernet drivers is
to use the name of the first device in the family for related file and
function names).  These defines and function prototypes can be used by
other files in the driver and moving them to the ICH/PCH-family-specific
file makes it clearer to which devices they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines specific to the ESB2/82563 family of devices to the new
80003es2lan.h header file.  These defines can be used by other files in the
driver and moving them to the 80003es2lan-family-specific file makes it
clearer to which devices they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Move #defines and function prototypes specific to the 8257x family of
devices (82571, 82572, 82573, 82574, 82583) to the new 82571.h header file
(the convention for Intel wired ethernet drivers is to use the name of the
first device in the family for related file and function names).  These
defines and function prototypes can be used by other files in the driver
and moving them to the 8257x-family-specific file makes it clearer to which
devices they are applicable.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

We recently refactored the driver source, this patch will take care of
updating copyright date and adding it to newly added files.
Signed-off-by: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit ee873fda

    "gianfar: Pack struct gfar_priv_grp into three cachelines"

causes the following null dereference at driver init on sbc8548:

   libphy: Freescale PowerQUICC MII Bus: probed
   Unable to handle kernel paging request for data at address 0x00000000
   Faulting instruction address: 0xc01d6a38
   Oops: Kernel access of bad area, sig: 11 [#1]
   [...]
   NIP [c01d6a38] gfar_parse_group+0x228/0x280
   LR [c01d6a34] gfar_parse_group+0x224/0x280
   Call Trace:
   [ef82dd60] [c01d6a34] gfar_parse_group+0x224/0x280 (unreliable)
   [ef82dd90] [c01d73a4] gfar_probe+0x284/0xfe0

The reason is that the commit also changed the allocation of the
Rx and error handling irq structs to be skipped for !MQ_MG_MODE.
In the !MQ_MG_MODE case, only the Tx irq struct is allocated.

Digging further, we see that MQ_MG_MODE is set only if we find
the OF compatible string "fsl,etsec2".

A quick grep in the dts directory shows lots of boards that support
Rx/Tx/Err, but without this specific compat string.  And hence they
go after the unallocated Rx/Error structs and cause the above oops.

Hence such a change can not be deployed until all the dts files
are updated and sufficiently deployed.  Further, the optimization
is of limited value, since the kmalloc'd struct in question has only
a single unsigned int, and an (IFNAMSIZ + 6) sized string.

Note that no changes to the freeing code are needed here, as it
already did an unconditional free of Rx/Tx/Error gfar_irqinfo.

Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

BUG: spinlock bad magic on CPU#1, swapper/0/1
lock: 0xbfae0f8c, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
Backtrace:
 [<80011d54>] (dump_backtrace+0x0/0x10c) from [<804e7800>] (dump_stack+0x18/0x1c)
 r6:bfae0000 r5:bfae0f8c r4:00000000 r3:806c1310
 [<804e77e8>] (dump_stack+0x0/0x1c) from [<804e9f20>] (spin_dump+0x80/0x94)
 [<804e9ea0>] (spin_dump+0x0/0x94) from [<804e9f60>] (spin_bug+0x2c/0x30)
 r5:805f6f8c r4:bfae0f8c
 [<804e9f34>] (spin_bug+0x0/0x30) from [<80257984>] (do_raw_spin_lock+0x170/0x1b0                                         )
 r5:806b4950 r4:bfae0f8c
 [<80257814>] (do_raw_spin_lock+0x0/0x1b0) from [<804ed15c>] (_raw_spin_lock_irqs                                         ave+0x18/0x20)
 [<804ed144>] (_raw_spin_lock_irqsave+0x0/0x20) from [<8033c694>] (fec_ptp_start_                                         cyclecounter+0x3c/0x120)
 r4:bfae0f8c r3:00000002
 [<8033c658>] (fec_ptp_start_cyclecounter+0x0/0x120) from [<80339e08>] (fec_resta                                         rt+0x56c/0x5f8)
 r8:00000000 r7:806e6f48 r6:00000112 r5:806b4950 r4:bfae0000
 [<8033989c>] (fec_restart+0x0/0x5f8) from [<8033b9e4>] (fec_probe+0x508/0xa48)
Signed-off-by: NFrank Li <Frank.Li@freescale.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ip_eth_mc_map function can't be used when CONFIG_INET isn't defined.
Fixed compilation error by adding CONFIG_INET define check before using the
function.
Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Propagate return value of mlx4_en_ethtool_add_mac_rule_by_ipv4 in case of
failure.
Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSathya Perla <sathya.perla@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, when the PF driver is unloaded and re-loaded while VFs are attached
to VMs, it loses control of its VFs.

The PF driver now uses the newly defined/created GET_IFACE_LIST cmd
(available in FW ver >= 4.6) to query the if_id of the VFs
(enabled in its previous life). The PF driver then uses the if_id for
further VF configuration.

The GET_IFACE_MAC_LIST cmd has also implemented in BE3 FW for PF to
query pmac-ids used by its VFs.
Signed-off-by: NSathya Perla <sathya.perla@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

alloc failures already get standardized OOM
messages and a dump_stack.

Convert kzalloc's with multiplies to kcalloc.
Convert kmalloc's with multiplies to kmalloc_array.
Fix a few whitespace defects.
Convert a constant 6 to ETH_ALEN.
Use parentheses around sizeof.
Convert vmalloc/memset to vzalloc.
Remove now unused size variables.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDivy Le Ray <divy@chelsio.com>
Signed-off-by: NVipul Pandya <vipul@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If stmmac_dvr_probe() fails in stmmac_pci_probe(), it breaks off initialization,
deallocates all resources, but returns zero.
The patch adds -ENODEV as return value in this case.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We actually store the MAC address as well as the board_name here.  The
longest board_name is 75 characters so there is more than enough room
to hold the 17 character MAC and the ": " divider.  But making this
buffer larger silences a static checker warning.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-By: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When the interface does not have carrier but when it's put into
loopback mode (for tests), it does not make sense to not have
the carrier. So force it!
Signed-off-by: NMahesh Bandewar <maheshb@google.com>
Acked-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1) rhine_tx() should use dev_kfree_skb() not dev_kfree_skb_irq()

2) rhine_slow_event_task's NAPI triggering logic is racey, it
   should just hit the interrupt mask register.  This is the
   same as commit 7dbb4918
   ("r8169: avoid NAPI scheduling delay.") made to fix the same
   problem in the r8169 driver.  From Francois Romieu.
Reported-by: NJamie Gloudon <jamie.gloudon@gmail.com>
Tested-by: NJamie Gloudon <jamie.gloudon@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For standard IEEE MII-compatible transceivers, the kernel has generic
register and bit definitions.  Use those instead of redundant local
defines.

Do not replace references of MII_CR_SPEED_10 with BMCR_SPEED10 (0x0000)
when it is not necessary (i.e. when it is bitwise OR'ed with another
value).

Some whitespace issues in the surrounding context of the above changes are
also cleaned up.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Remove the unused parameter when possible, otherwise use __always_unused
attribute.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

For clarity, wrap OR'ed bit settings with parentheses.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Remove redundant defines which are defined elsewhere.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Removes the autoneg parameter from the setup_link functions.
Adds local variable autoneg to setup_link functions to be passed
to get_link_capabilities functions if needed.
Signed-off-by: NJosh Hay <joshua.a.hay@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>

Removes the autoneg parameter from the setup_link_speed functions.  These
functions do nothing with this parameter.
Signed-off-by: NJosh Hay <joshua.a.hay@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Renames some autoneg/speed variables to be more consistent with check_link,
get_link_capabilities, and setup_link function calls. Initializes instances
of autoneg.
Signed-off-by: NJosh Hay <joshua.a.hay@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The device lookup neglected to do a pci_dev_put() to decrement the
device reference count.
Reported-by: NElena Gurevich <elena.gurevich@toganetworks.com>
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Check for up2tc change and call ixgbe_dcbnl_devreset() if the mapping has
changed but the number of TC's in use has not changed.
Signed-off-by: NAmir Hanania <amir.hanania@intel.com>
Tested-by: NJack Morgan <jack.morgan@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Under heavy CPU load, changing, ring size/mtu/etc. could result in transmit
timeout, since stop-start port might take more than 10 seconds.
Calling netif_detach_device to prevent tx queue transmit timeout.

netif_detach_device() is not called under ndo_stop, because netif_carrier_off
will prevent the timeout, and device should not be marked as not present, or
else user won't be able to start it later on.

CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: NEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: NAmir Vadai <amirv@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>