Commit Graph

48 Commits

Author SHA1 Message Date
Ganesh Goudar eb97ad99f9 cxgb4/cxgb4vf: Add link mode mask API to cxgb4 and cxgb4vf
Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 10:26:45 -07:00
Hariprasad Shenai ddc7740d9a cxgb4: Decode link down reason code obtained from firmware
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 13:23:58 -04:00
Varun Prakash b96c5cbb20 cxgb4: add definitions for iSCSI target ULD
add structure, macro and constant definitions
for iSCSI Tx and Rx.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Acked-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-22 00:25:04 -07:00
Hariprasad Shenai f2be053c83 cxgb4: changes for new firmware 1.14.4.0
Incorporate fw_ldst_cmd structure change for new firmware and also
update version string for the same

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 21:30:18 -07:00
Hariprasad Shenai 5d700ecb06 cxgb4: Add sge ec context flush service
Add function to flush the sge ec context cache, and utilize
this new function in the driver

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-05 21:25:56 -07:00
Hariprasad Shenai 3ccc6cf74d cxgb4: Adds support for T6 adapter
Adds NIC driver related changes for T6 adapter. Register related
changes, MC related changes, VF related changes, doorbell related
changes, debugfs changes, etc

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-01 22:14:35 -07:00
Hariprasad Shenai 01b6961410 cxgb4: Add PHY firmware support for T420-BT cards
Add support for flashing 10GBaseT adapter with BCM 84834 PHY and
Aquantia AQ1202 PHY.

Updating of the PHY firmware must happen before the INITIALIZE_CMD.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-25 00:17:24 -04:00
Hariprasad Shenai 1ecc7b7a59 cxgb4/cxgb4vf: Cleanup macros, add comments and add new MACROS
Cleanup few MACROS left out in t4_hw.h to be consistent with the
existing ones. Also replace few hardcoded values with MACROS. Also
update comments for some code

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:11:40 -04:00
Hariprasad Shenai b8b1ae990e cxgb4: Pass in a Congestion Channel Map to t4_sge_alloc_rxq()
Passes a Congestion Channel Map to t4_sge_alloc_rxq()
for the Ethernet RX Queues based on the MPS Buffer Group Map
of the TX Channel rather than just the TX Channel Map.
Also, in t4_sge_alloc_rxq() for T5, setting up the
Congestion Manager values of the new RX Ethernet Queue is
done by firmware now.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:31:49 -04:00
Hariprasad Shenai 145ef8a54e cxgb4: Enable congestion notification from SGE for IQs and FLs.
Also changed the name of t4_hw.c:get_mps_bg_map() to t4_get_mps_bg_map()
and make it an exported routine with a definition in cxgb4.h.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:31:49 -04:00
David S. Miller 9f0d34bc34 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/usb/asix_common.c
	drivers/net/usb/sr9800.c
	drivers/net/usb/usbnet.c
	include/linux/usb/usbnet.h
	net/ipv4/tcp_ipv4.c
	net/ipv6/tcp_ipv6.c

The TCP conflicts were overlapping changes.  In 'net' we added a
READ_ONCE() to the socket cached RX route read, whilst in 'net-next'
Eric Dumazet touched the surrounding code dealing with how mini
sockets are handled.

With USB, it's a case of the same bug fix first going into net-next
and then I cherry picked it back into net.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-02 16:16:53 -04:00
Hariprasad Shenai 7ef65a4211 cxgb4: Firmware macro changes for fw verison 1.13.32.0
Adds new macro and few macro changes for fw version 1.13.32.0 also
changes version string in driver to match 1.13.32.0

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-01 14:47:20 -04:00
Joe Perches dbedd44e98 ethernet: codespell comment spelling fixes
To test a checkpatch spelling patch, I ran codespell against
drivers/net/ethernet/.

$ git ls-files drivers/net/ethernet/ | \
  while read file ; do \
    codespell -w $file; \
  done

I removed a false positive in e1000_hw.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-08 22:54:22 -04:00
Hariprasad Shenai ba3f8cd55f cxgb4: Add support in cxgb4 to get expansion rom version via ethtool
Add support to get option/expansion rom version flashed in the adapter via
ethtool getdrvinfo function.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:07:54 -08:00
Hariprasad Shenai 70a5f3bb5f cxgb4: Add support in debugfs to display sensor information
Dump out various chip sensor information. Currently Chip Temperature
and Core Voltage.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Hariprasad Shenai 49216c1c17 cxgb4: Add debugfs entry to dump the contents of the flash
Adds support to dump the contents of the flash in the adapter

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-24 17:13:24 -08:00
Hariprasad Shenai 49aa284ffe cxgb4: Add support for devlog
Add support for device log entry in debugfs

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-08 19:39:09 -08:00
Hariprasad Shenai 5aa80e5144 cxgb4: Fix decoding QSA module for ethtool get settings
QSA module was getting decoded as QSFP module in ethtool get settings, this
patch fixes it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-18 12:39:16 -05:00
Hariprasad Shenai 40e9de4b60 cxgb4: Add support for QSA modules
Firmware 1.12.25.0 added support for QSA module, adding the driver code for it.
Also fixes some ethtool get settings for other module types.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-12 11:24:03 -05:00
Karen Xie 64bfead85d cxgb4/cxgb4i: set the max. pdu length in firmware
Programs the firmware of the maximum outgoing iscsi pdu length per connection.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-12 11:22:29 -05:00
Hariprasad Shenai b2e1a3f091 RDMA/cxgb4/cxgb4vf/csiostor: Cleanup macros/register defines related to PCIE, RSS and FW
This patch cleanups all PCIE, RSS & FW related macros/register defines that are
defined in t4fw_api.h and the affected files.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22 16:57:47 -05:00
Hariprasad Shenai 2b5fb1f25e cxgb4/cxgb4vf/csiostor: Cleanup macros/register defines related to port and VI
This patch cleanups all port and VI related macros/register defines that are
defined in t4fw_api.h and the affected files.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22 16:57:47 -05:00
Hariprasad Shenai 6e4b51a604 cxgb4/cxgb4vf/csiostor: Cleanup macros/register defines related to queues
This patch cleanups all queue related macros/register defines that are defined
in t4fw_api.h and the affected files.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22 16:57:47 -05:00
Hariprasad Shenai 5167865aaa RDMA/cxgb4/csiostor: Cleansup FW related macros/register defines for PF/VF and LDST
This patch cleanups PF/VF and LDST related macros/register defines that are
defined in t4fw_api.h and the affected files.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22 16:57:47 -05:00
Hariprasad Shenai 77a80e23cc RDMA/cxgb4: Cleanup Filter related macros/register defines
This patch cleanups all filter related macros/register defines that are defined
in t4fw_api.h and the affected files.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22 16:57:46 -05:00
Anish Bhatt d7990b0c34 cxgb4i/cxgb4 : Refactor macros to conform to uniform standards
Refactored all macros used in cxgb4i as part of previously started cxgb4 macro
names cleanup. Makes them more uniform and avoids namespace collision.
Minor changes in other drivers where required as some of these macros are used
 by multiple drivers, affected drivers are iw_cxgb4, cxgb4(vf) & csiostor

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:36:22 -05:00
Hariprasad Shenai e2ac962895 cxgb4: Cleanup macros so they follow the same style and look consistent, part 2
Various patches have ended up changing the style of the symbolic macros/register
defines to different style.

As a result, the current kernel.org files are a mix of different macro styles.
Since this macro/register defines is used by different drivers a
few patch series have ended up adding duplicate macro/register define entries
with different styles. This makes these register define/macro files a complete
mess and we want to make them clean and consistent. This patch cleans up a part
of it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 12:57:10 -05:00
Hariprasad Shenai 31d55c2d66 cxgb4: Detect and display firmware reported errors
The adapter firmware can indicate error conditions to the host.
If the firmware has indicated an error, print out the reason for
the firmware error.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-01 23:00:41 -07:00
Hariprasad Shenai 08f1a1b9d1 cxgb4: Free completed tx skbs promptly
Description of problem:
The NIC card is not reporting back to the driver the transmitted skbs,
so they get stuck in the TX ring causing issues with reference
counters in other kernel components.

Developed a new Automatic Egress Queue Update firmware facility to slowly tick
through Egress Queues and send back any outstanding CIDX Updates which are
laying around.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:54:52 -07:00
Anish Bhatt 10b0046685 cxgb4: IEEE fixes for DCBx state machine
* Changes required due to 16eecd9be4 ("dcbnl : Fix misleading
  dcb_app->priority explanation")
* Driver was previously not aware of what DCBx version was negotiated by
  firmware, this could lead to DCB app table  in kernel or in firmware being
  populated wrong  since IEEE/CEE used different formats made clear by above
  mentioned commit
* Driver was missing a couple of state transitions that could be caused
  by other drivers that use chelsio hardware, resulting in incorrect behaviour
  (the change that addresses this also flips the state machine to switch on
   state instead of transition, hope this is okay in current window)
* Prio queue info & tsa is no longer thrown away

v2: Print DCBx state transition messages only when debug is enabled

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-07 16:18:55 -07:00
Hariprasad Shenai 4c2c576322 cxgb4/iw_cxgb4: use firmware ord/ird resource limits
Advertise a larger max read queue depth for qps, and gather the resource limits
from fw and use them to avoid exhaustinq all the resources.

Design:

cxgb4:

Obtain the max_ordird_qp and max_ird_adapter device params from FW
at init time and pass them up to the ULDs when they attach.  If these
parameters are not available, due to older firmware, then hard-code
the values based on the known values for older firmware.
iw_cxgb4:

Fix the c4iw_query_device() to report these correct values based on
adapter parameters.  ibv_query_device() will always return:

max_qp_rd_atom = max_qp_init_rd_atom = min(module_max, max_ordird_qp)
max_res_rd_atom = max_ird_adapter

Bump up the per qp max module option to 32, allowing it to be increased
by the user up to the device max of max_ordird_qp.  32 seems to be
sufficient to maximize throughput for streaming read benchmarks.

Fail connection setup if the negotiated IRD exhausts the available
adapter ird resources.  So the driver will track the amount of ird
resource in use and not send an RI_WR/INIT to FW that would reduce the
available ird resources below zero.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-15 16:25:16 -07:00
Anish Bhatt ce100b8b81 cxgb4 : Update copyright year on all cxgb4 files
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-22 21:13:33 -07:00
Anish Bhatt 989594e2f2 cxgb4 : Update fw interface file for DCBx support. Adds all the required fields to fw interface to communicate DCBx info
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-22 21:13:33 -07:00
Kumar Sanghvi 1ac0f09563 cxgb4: Query firmware for T5 ULPTX MEMWRITE DSGL capabilities
Query firmware to see whether we're allowed to use T5 ULPTX MEMWRITE DSGL
capabilities.  Also pass that information to Upper Layer Drivers via the
new (struct cxgb4_lld_info).ulptx_memwrite_dsgl boolean.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 16:23:01 -05:00
Kumar Sanghvi 72aca4bfce cxgb4: Add support to recognize 40G links
Also, create a new Common Code interface to translate Firmware Port Technology
Type values (enum fw_port_type) to string descriptions.  This will allow us
to maintain the description translation table in one place rather than in
every driver.

Based on original work by Scott Bardone and Casey Leedom <leedom@chelsio.com>

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 16:23:00 -05:00
Hariprasad Shenai 16e47624e7 cxgb4: Add new scheme to update T4/T5 firmware
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-03 16:55:40 -05:00
Vipul Pandya 01bcca68c3 cxgb4: Add CLIP support to store compressed IPv6 address
The Compressed LIP region is used to hold a limited number of Local
IPv6 addresses.  This region is primarily used to reduce the TCAM
space consumed for an IPv6 offloaded connection.  A 128-bit LIP will
be reduced to 13-bit and stored in the TCAM if there is a match
between the IPv6 tuple's LIP and the one stored in the CLIP region.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-08-12 12:33:37 -07:00
Vipul Pandya b407a4a908 cxgb4: Support CPL_SGE_EGR_UPDATEs encapsulated in a CPL_FW4_MSG
Newer firmware can post CPL_SGE_EGR_UPDATE message encapsulated in a
CPL_FW4_MSG as follows

flit0 rss_header (if DropRSS == 0 in IQ context)
flit1 CPL_FW4_MSG cpl
flit2 rss_header w/opcode CPL_SGE_EGR_UPDATE
flit3 CPL_SGE_EGR_UPDATE cpl

So FW4_MSG CPLs with a newly created type of FW_TYPE_RSSCPL have the
CPL_SGE_EGR_UPDATE CPL message in flit 2 of the FW4_MSG. Firmware can still
post regular CPL_SGE_EGR_UPDATE messages, so the drivers need to handle
both.

This patch also writes a new parameter to firmware requesting encapsulated
EGR_UPDATE. This allows firmware with this support to not break older drivers.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-29 15:24:44 -04:00
Santosh Rastapur 2422d9a327 cxgb4: Add macros, structures and inline functions for T5
Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-14 11:35:53 -04:00
Vipul Pandya 5be78ee924 RDMA/cxgb4: Fix LE hash collision bug for active open connection
It enables establishing active open connection using fw_ofld_connection work
request when cpl_act_open_rpl says TCAM full error which may be because
of LE hash collision. Current support is only for IPv4 active open connections.

Sets ntuple bits in active open requests. For T4 firmware greater than 1.4.10.0
ntuple bits are required to be set.

Adds nocong and enable_ecn module parameter options.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>

[ Move all FW return values to t4fw_api.h.  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19 23:02:43 -08:00
Vipul Pandya f2b7e78dbc cxgb4: Add T4 filter support
The T4 architecture is capable of filtering ingress packets at line rate
using the rule in TCAM. If packet hits a rule in the TCAM then it can be either
dropped or passed to the receive queues based on a rule settings.

This patch adds framework for managing filters and to use T4's filter
capabilities. It constructs a Firmware Filter Work Request which writes the
filter at a specified index to get the work done. It hosts shadow copy of
ingress filter entry to check field size limitations and save memory in the
case where the filter table is large.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19 09:28:19 -08:00
Naresh Kumar Inna ce91a9234c [SCSI] cxgb4/cxgb4vf: Chelsio FCoE offload driver submission (common header updates).
This patch contains updates to firmware/hardware header files shared
between csiostor and cxgb4/cxgb4vf, and the resulting changes to the
cxgb4/cxgb4vf source files.

Signed-off-by: Naresh Kumar Inna <naresh@chelsio.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-27 09:00:38 +04:00
Vipul Pandya 26f7cbc0a5 cxgb4: Don't attempt to upgrade T4 firmware when cxgb4 will end up as a slave
This patch adds a new common code routine to upgrade an adapter's
firmware.  This routine handles all of the complexities of working with the
the existing adapter firmware in order to quiesce the adapter and uP, etc.
For an automatic upgrade it will send a HELLO command to check if cxgb4
want/can upgrade firmware, i.e. if cxgb4 is MASTER and has newer firmware
that it wants to load and call the new common code routine t4_fw_upgrade.
Note that it should not issue a RESET command after a successful firmware
upgrade.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:51 -04:00
Vipul Pandya 13ee15d396 cxgb4: Add support for T4 hardwired driver configuration settings
In case if user defined configuration file at /lib/firmware/cxgb4/t4-config.txt
location and also factory default configuration file written to FLASH are not
present then driver will use hardwired configuration settings.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 636f9d371f cxgb4: Add support for T4 configuration file
Starting with T4 firmware version 1.3.11.0 the firmware now supports device
configuration via a Firmware Configuration File. The Firmware Configuration
File was primarily developed in order to centralize all of the configuration,
resource allocation, etc. for Unified Wire operation where multiple
Physical / Virtual Function Drivers would be using a T4 adapter simultaneously.

The Firmware Configuration file can live in three locations as shown below
in order of precedence.
1) User defined configuration file: /lib/firmware/cxgb4/t4-config.txt
2) Factory Default configuration file written to FLASH within
   the manufacturing process.
3) Hardwired driver configuration.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 52367a763d cxgb4/cxgb4vf: Code cleanup to enable T4 Configuration File support
This patch adds new enums and macros to enable T4 configuration file support. It
also removes duplicate macro definitions.

It fixes the build failure in cxgb4vf driver introduced because of old macro
definition removal.

It also performs SGE initialization based on T4 configuration file is provided
or not. If it is provided then it uses the parameters provided in it otherwise
it uses hard coded values.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 17:55:50 -04:00
Vipul Pandya 3069ee9bc4 cxgb4: DB Drop Recovery for RDMA and LLD queues
recover LLD EQs for DB drop interrupts.  This includes adding a new
db_lock, a spin lock disabling BH too, used by the recovery thread and
the ring_tx_db() paths to allow db drop recovery.

Clean up initial DB avoidance code.

Add read_eq_indices() - this allows the LLD to use the PCIe mw to
efficiently read hw eq contexts.

Add cxgb4_sync_txq_pidx() - called by iw_cxgb4 to sync up the sw/hw
pidx value.

Add flush_eq_cache() and cxgb4_flush_eq_cache().  This allows iw_cxgb4
to flush the sge eq context cache before beginning db drop recovery.

Add module parameter, dbfoifo_int_thresh, to allow tuning the db
interrupt threshold value.

Add dbfifo_int_thresh to cxgb4_lld_info so iw_cxgb4 knows the threshold.

Add module parameter, dbfoifo_drain_delay, to allow tuning the amount
of time delay between DB FULL and EMPTY upcalls to iw_cxgb4.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-18 13:22:28 -07:00
Jeff Kirsher f7917c009c chelsio: Move the Chelsio drivers
Moves the drivers for the Chelsio chipsets into
drivers/net/ethernet/chelsio/ and the necessary Kconfig and Makefile
changes.

CC: Divy Le Ray <divy@chelsio.com>
CC: Dimitris Michailidis <dm@chelsio.com>
CC: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10 19:54:52 -07:00