30 Apr, 2009
12 commits
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This converts flow control capabilites to an advertising mask and can
be useful in combination with mii_resolve_flowctrl_fdx().Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
This is a shorter and more comprehensible formulation of the
conditions for each flow control mode.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Compile-tested only.
Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Compile-tested only.
Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Compile-tested only.
Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Compile-tested only.
Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Compile-tested only.
Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Make use of the newly-added generic MDIO clause 45 support and remove
redundant definitions.Add an 'efx_' prefix to the remaining driver-specific MDIO functions
and remove arguments which are redundant with efx->mdio.prtad.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
These roughly mirror many of the MII library functions and are based
on code from the sfc driver.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
IEEE 802.3 clause 45 specifies the MDIO interface and registers for
use in 10G and other PHYs, similar to the MII management interface.PHYs may have up to 32 MMDs corresponding to different sub-layers and
functions, each with up to 65536 registers. These are addressed by
PRTAD (similar to the MII PHY address) and DEVAD. Define a mapping
for specifying PRTAD and DEVAD through the existing MII ioctls.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Add a PORT_OTHER to represent all other physical port types. Current
NICs generally do not allow switching between multiple port types in
software so specific types should not be needed.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
These two memory barriers in performance-critical paths are not needed
on x86. Even if some other architecture does buffer PCI I/O space
writes, the existing memory-mapped I/O barriers are unlikely to be what
is needed.Signed-off-by: John Dykstra
Acked-by: Don Fry
Signed-off-by: David S. Miller
29 Apr, 2009
4 commits
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We were calling pci_enable_wake() twice in a row for both D3_hot
and D3_cold. This replaces those calls with a call to pci_wake_from_d3()
to avoid issues with PCI PM vs ordering constraints.Signed-off-by: Don Skidmore
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
o hold the firmware in memory across suspend, since filesystem
may not be up after resuming.
o reset the chip after requesting firmware, to minimize downtime
for NC-SI.Signed-off-by: Dhananjay Phadke
Signed-off-by: David S. Miller -
o move related fields into netxen_recv_context struct.
o allocate rx buffer and descriptor rings dynamically.Signed-off-by: Dhananjay Phadke
Signed-off-by: David S. Miller -
Firmware starting 4.0.402 started supporting link events, disable
it for older firmwares.Signed-off-by: Dhananjay Phadke
Signed-off-by: David S. Miller
28 Apr, 2009
16 commits
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cacheable_memzero() is completely overkill for the clearing out the FCB
block which is only 8-bytes. The compiler should easily optimize this
with memset. Additionally, cacheable_memzero() only exists on ppc32 and
thus breaks builds of gianfar on ppc64.Signed-off-by: Kumar Gala
Signed-off-by: David S. Miller -
These are later assigned to other values without being used meanwhile.
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
netif_tx_queue_stopped(txq) is most of the time false.
Yet its cost is very expensive on SMP.
static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue)
{
return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
}I saw this on oprofile hunting and bnx2 driver bnx2_tx_int().
We probably should split "struct netdev_queue" in two parts, one
being read mostly.__netif_tx_lock() touches _xmit_lock & xmit_lock_owner, these
deserve a separate cache line.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
Previous rework to ucc_geth.c to add of_mdio support (net: Rework
ucc_geth driver to use of_mdio infrastructure) added a block of
code which broke older openfirmware device trees which this case.This patch removes the offending blurb.
Signed-off-by: Grant Likely
Signed-off-by: David S. Miller -
CONFIG_DUET doesn't exist anymore, remove all the code that exists to
support it.[ Simplify fs_init() even further -DaveM ]
Signed-off-by: Kumar Gala
Signed-off-by: David S. Miller -
Ayyappan at VMware noticed that we're missing this check from ixgbe which
is in our other drivers. The difference with this implementation from our
other drivers is that this checks all the tx queues rather than just tx[0].Signed-off-by: Shannon Nelson
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
Update the interrupt management to correctly handle greater
than 16 queue vectors.Signed-off-by: Shannon Nelson
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
This patch enables hardware receive side coalescing for 82599 hardware.
82599 can merge multiple frames from the same TCP/IP flow into a single
structure that can span one ore more descriptors. The accumulated data is
arranged similar to how jumbo frames are arranged with the exception that
other packets can be interlaced inbetween. To overcome this issue a next
pointer is included in the written back descriptor which indicates the next
descriptor in the writeback sequence.This feature sets the NETIF_F_LRO flag and clearing it via the ethtool set
flags operation will also disable hardware RSC.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
Inspired by: Vlad Yasevich
This is the code to enable ixgbe for hardware offload support
of CRC32c on both transmit and receive of SCTP traffic.only 82599 supports this offload, not 82598.
Signed-off-by: Jesse Brandeburg
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
Originally from: Vlad Yasevich
This patch, both the driver portion and the sctp code was
modified by Jesse Brandeburg and isCopyright(c) 2009 Intel Corporation.
Thanks go to Vlad for starting this work.
Intel 82576 chipset supports SCTP checksum offloading. This
patch enables this functionality in the driver. A new NETIF
feature is introduced for SCTP checksum offload. If the driver
supports CRC32c checksum, it can set this feature flag. The
hardware can offload both transmit and receive.Signed-off-by: Jesse Brandeburg
Signed-off-by: Vlad Yasevich
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
this is the sctp code to enable hardware crc32c offload for
adapters that support it.Originally by: Vlad Yasevich
modified by Jesse Brandeburg
Signed-off-by: Jesse Brandeburg
Signed-off-by: Vlad Yasevich
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
Both of these drivers do a check to verify ip_summed is set to
CHECKSUM_UNNECESSARY prior to passing the packet to GRO. GRO itself
already does such a check so it is redundant and can be removed as this
will likely cause out of order issues when receiving a packet that didn't
pass checksum validation.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
The igb driver was being incorrectly setup to only allow disabling receive
checksum if multiqueue was disabled. This change corrects that so that
RXCSUM is configured regardless of queue configuration.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
This change updates the timeout logic so that it is not possible to have a
sucessful check for message and still return an error if countdown = 0.Signed-off-by: Alexander Duyck
Reported-by: Juha Leppanen
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
This is V2 of the smsc911x fifo byteswap patch.
The smsc911x hardware supports both big and little and endian
hardware configurations, and the linux smsc911x driver currently
detects word order.For correct operation on big endian platforms lacking swapped
byte lanes the following patch is needed. Only fifo data is
swapped, register data does not require any swapping.Signed-off-by: Magnus Damm
Acked-by: Steve Glendinning
Signed-off-by: David S. Miller -
Disable L1/L0s when link detected. We enable L1/L0s when link connected
before, but there is some hareware error on some platform. So just diable
this feature when link connected. This feature is about power saving.Signed-off-by: Jie Yang
Signed-off-by: David S. Miller
27 Apr, 2009
8 commits
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On a brand new GRO skb, we cannot call ip_hdr since the header
may lie in the non-linear area. This patch adds the helper
skb_gro_network_header to handle this.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller -
The skb_gro_* code fails to handle the case where a header starts
in the linear area but ends in the frags area. Since the goal
of skb_gro_* is to optimise the case of completely non-linear
packets, we can simply bail out if we have anything in the linear
area.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller -
Signed-off-by: Vladislav Zolotarov
Signed-off-by: Eilon Greenstein
Signed-off-by: David S. Miller -
Signed-off-by: Vladislav Zolotarov
Signed-off-by: Eilon Greenstein
Signed-off-by: David S. Miller -
>From now on FW will be downloaded from the binary file using request_firmware.
There will be different files for every supported chip. Currently 57710 (e1) and
57711 (e1h).File names have the following format: bnx2x--.fw.
ihex versions of current FW files are submitted in the next patch.Each binary file has a header in the following format:
struct bnx2x_fw_file_section {
__be32 len;
__be32 offset;
}struct bnx2x_fw_file_hdr {
struct bnx2x_fw_file_section init_ops;
struct bnx2x_fw_file_section init_ops_offsets;
struct bnx2x_fw_file_section init_data;
struct bnx2x_fw_file_section tsem_int_table_data;
struct bnx2x_fw_file_section tsem_pram_data;
struct bnx2x_fw_file_section usem_int_table_data;
struct bnx2x_fw_file_section usem_pram_data;
struct bnx2x_fw_file_section csem_int_table_data;
struct bnx2x_fw_file_section csem_pram_data;
struct bnx2x_fw_file_section xsem_int_table_data;
struct bnx2x_fw_file_section xsem_pram_data;
struct bnx2x_fw_file_section fw_version;
}Each bnx2x_fw_file_section contains the length and the offset of the appropriate
section in the binary file. Values are stored in the big endian format.Data types of arrays:
init_data __be32
init_ops_offsets __be16
XXsem_pram_data u8
XXsem_int_table_data u8
init_ops struct raw_op {
u8 op;
__be24 offset;
__be32 data;
}
fw_version u8>From now boundaries of a specific initialization stage are stored in
init_ops_offsets array instead of being defined by separate macroes. The index
in init_ops_offsets is calculated by BLOCK_OPS_IDX macro:#define BLOCK_OPS_IDX(block, stage, end) \
(2*(((block)*STAGE_IDX_MAX) + (stage)) + (end))Security:
In addition to sanity check of array boundaries bnx2x will check a FW version.
Additional checks might be added in the future.Signed-off-by: Vladislav Zolotarov
Signed-off-by: Eilon Greenstein
Signed-off-by: David S. Miller -
Signed-off-by: Vladislav Zolotarov
Signed-off-by: Eilon Greenstein
Signed-off-by: David S. Miller -
When creating a certain types of VPN, NetworkManager will first attempt
to find an available tun device by iterating through 'vpn%d' until it
finds one that isn't already busy. Then it'll set that to be persistent
and owned by the otherwise unprivileged user that the VPN dæmon itself
runs as.There's a race condition here -- during the period where the vpn%d
device is created and we're waiting for the VPN dæmon to actually
connect and use it, if we try to create _another_ device we could end up
re-using the same one -- because trying to open it again doesn't get
-EBUSY as it would while it's _actually_ busy.So solve this, we add an IFF_TUN_EXCL flag which causes tun_set_iff() to
fail if it would be opening an existing persistent tundevice -- so that
we can make sure we're getting an entirely _new_ device.Signed-off-by: David Woodhouse
Signed-off-by: David S. Miller -
Values of dB between -0.99 and -0.01 will be output with the wrong
sign. This converts the negative value to positive and outputs it
with a "-" prefix.Signed-off-by: Simon Arlott
Signed-off-by: David S. Miller
