Commit Graph

25 Commits

Author SHA1 Message Date
Eilon Greenstein 437cf2f1c5 bnx2x: Accessing un-mapped page
The allocated RX buffer size was 64 bytes bigger than the PCI mapped
size with no good reason. If the packet was actually using the buffer up
to its limit and if the last 64 bytes of the buffer crossed 4KB boundary
then an unmapped PCI page was accessed. The fix is to use only one
parameter for the buffer size - there is no need to differentiate
between the buffer size and the PCI mapping size since the extra 64
bytes can actually be used by the FW to align the Ethernet payload to
64 bytes.

Also updating the driver version and date

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-03 14:38:00 -07:00
Eilon Greenstein 2772f90373 bnx2x: Rx work check
The has Rx work check was wrong: when the FW was at the end of the page,
the driver was already at the beginning of the next page. Since the
check only validated that both driver and FW are pointing to the same
place, it concluded that there is still work to be done. This caused
some serious issues including long latency results on ping-pong test and
lockups while unloading the driver in that condition.

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:19:17 -07:00
Eilon Greenstein 6378c02531 bnx2x: Checkpatch compliance
Checkpatch compliance
The latest version of checkpatch found the following style errors in the
code

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:05:38 -07:00
Eilon Greenstein 3347162995 bnx2x: Spelling mistakes
Spelling mistakes
Spelling has to L's in it...

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:05:37 -07:00
Eilon Greenstein 3196a88a85 bnx2x: Minor code improvements
Minor code improvements
Small changes to make the code a little bit more efficient and mostly
more readable:
- Using unified macros for EMAC_RD/WR which looks like normal REG_RD/WR
- Removing the NIG_WR since it did nothing and was only confusing
- On bnx2x_panic_dump, print only the used parts of the rings
- define parameters only on the branch they are needed and not at the
  beginning of the function
- using NETIF_MSG_INTR and not private BNX2X_MSG_SP for debug prints

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:05:36 -07:00
Eilon Greenstein 345b5d52b9 bnx2x: 1G LED does not turn off
1G LED does not turn off
The 1G LED was not switched to off when the link was lost

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:05:34 -07:00
Eilon Greenstein 17de50b7f7 bnx2x: Change GPIO for any port
Change GPIO for any port
The set GPIO function should receive the port index to allow changing
the GPIO of another port. This is needed for the common init phase (one
the first driver is loaded for the chip)

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:05:32 -07:00
Eilon Greenstein 3fcaf2e566 bnx2x: HW attention lock
HW attention lock
Making sure that only one function will handle the HW attention. This
makes the device parameter aeu_mask redundant so it is removed

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:02:33 -07:00
Vladislav Zolotarov da5a662a23 bnx2x: Load/Unload under traffic
Load/Unload under traffic
Few issues were found when loading and unloading under traffic:
- When receiving Tx interrupt call netif_wake_queue if the queue is
  stopped but the state is open
- Check that interrupts are enabled before doing anything else on the
  msix_fp_int function
- In nic_load, enable the interrupts only when needed and ready for it
- Function stop_leading returns status since it can fail
- Add 1ms delay when unloading the driver to validate that there are no
  open transactions that already started by the FW
- Splitting the "has work" function into Tx and Rx so the same function
  will be used on unload and interrupts
- Do not request for WoL if only resetting the device (save the time
  that it takes the FW to set the link after reset)
- Fixing the device reset after iSCSI boot and before driver load - all
  internal buffers must be cleared before the driver is loaded

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:02:04 -07:00
Yitchak Gertner 66e855f3f5 bnx2x: Statistics
Statistics
- Making sure that each drop is accounted for in the driver statistics
- Clearing the FW statistics when driver is loaded to prevent
  inconsistency with HW statistics
- Once error is detected (bnx2x_panic_dump), stop the statistics
  before other actions (currently it is stopped last and can corrupt
  the data) - Adding HW checksum error counter to the statistics
- Removing unused variable stats_ticks
- Using macros instead of magic numbers to indicate which statistics are
  shared per port and which are per function

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:01:31 -07:00
Eilon Greenstein 1adcd8bee3 bnx2x: Not dropping packets with L3/L4 checksum error
Not dropping packets with L3/L4 checksum error
Those packets should be passed to the OS. The problem is clear in
forwarding mode.

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 16:01:14 -07:00
Vladislav Zolotarov 7a9b25577c bnx2x: Add TPA, Broadcoms HW LRO
The TPA stands for Transparent Packet Aggregation. When enabled, the FW
aggregate in-order TCP packets according to the 4-tuple match and sends
1 big packet to the driver. This packet is stored on an SGL in which
each SGE is 1 page. The FW also implements a timeout algorithm and it
honors all TCP flag, including the push flag as a trigger to halt
aggregation.

After receiving Ben Hutchings comments, we also added ethtool support,
so now, thanks to Ben's patch, when forwarding is enabled, our
aggregation is turned off using the LRO flags.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-23 20:34:36 -07:00
Yitchak Gertner bb2a0f7ae4 bnx2x: New statistics code
To avoid race conditions with link up/down and driver up/down - the
statistics handling was re-written in a form of state machine.
Also supporting statistics for 57711

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-23 20:33:36 -07:00
Eilon Greenstein 34f80b04f3 bnx2x: Add support for BCM57711 HW
Supporting the 57711 and 57711E - refers to in the code as E1H. The
57710 is referred to as E1.

To support the new members in the family, the bnx2x structure was
divided to 3 parts: common, port and function. These changes caused some
rearrangement in the bnx2x.h file.

A set of accessories macros were added to make access to the bnx2x
structure more readable

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-23 20:33:01 -07:00
Eilon Greenstein ad8d394804 bnx2x: New init infrastructure
This new initialization code supports the 57711 HW. It also supports
the emulation and FPGA for the 57711 and 57710 initializations values
(very small amount of code which is very helpful in the lab - less
than 30 lines).

The initialization is done via DMAE after the DMAE block is ready -
before it is ready, some of the initialization is done via PCI
configuration transactions (referred to as indirect write).  A mutex
to protect the DMAE from being overlapped was added.  There are few
new registers which needs to be initialized by SW - the full comment
for those registers is added to the register file.  A place holder for
the 57711 (referred to as E1H) microcode was added- the microcode
itself is too big and it is split over the following 4 patches

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-23 20:29:02 -07:00
Yaniv Rosner c18487ee24 bnx2x: New link code
New Link code:
Moving all the link related code (including the calculations, the
initialization of the MAC and PHY and the external PHY's code) into
a separated file. The changes from the code that used to be part of
bnx2x.c (now called bnx2x_main.c) are:
- Using separate structures for link inputs and link outputs to clearly 
  identify what was configured and what is the outcome
- Adding code to read external PHY FW version and print it as part of 
  ethtool -i
- Adding code to upgrade external PHY FW from ethtool -E with special 
  magic number - Changing the link down indication to ERR level
- Adding a lock on all PHY access to prevent an interrupt and 
  setting changes to overlap
- Adding support for emulation and FPGA (small chunk of code that really 
  helps in the lab) - Adding support for 1G on BCM8706 PHY
- Adding clear debug print incase of fan failure (the PHY type is now 
  "failure")

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-23 20:27:52 -07:00
Eilon Greenstein 24e3fcefb9 bnx2x: Updating the Maintainer
I would like to thank Eliezer Tamir for writing and maintaining the
driver for the past two years. I will take over maintaining the bnx2x
driver from now on.

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-12 14:30:28 -07:00
Eliezer Tamir 96fc178400 [BNX2X]: Fix Xmit bugs
Several endianity corrections in start_xmit()

Fixed TSO bug where packets were missing the TCP flags.

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:57:55 -08:00
Eliezer Tamir 228241eb58 [BNX2X]: fix slowpath races and locking
Fixed locking between fastpath and slowpath operations.

Corrected order of traffic disabling to prevent race when going down
under traffic.

- first have the microcode drop all incoming packets
- then do the slowpath stuff
- only then reset the MAC

Got rid of in_reset_task.

Remove_one() and friends would deference a null pointer if init_one
failed.

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:56:57 -08:00
Eliezer Tamir 0e39e645b3 [BNX2X]: correct statistics
Errors were summed improperly, some stats were missing.

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:54:03 -08:00
Eliezer Tamir 49d6677211 [BNX2X]: Correct RX filtering and MC configuration
The configuration of RX filtering needed the following corrections:

Drop flags need to be set per Rx queue.

Have to tell the microcode to collect drop stats, and properly wait
for them to complete when going down.

Sometimes we failed to detect proper completion due to a logical error
in the wait loop.

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:53:13 -08:00
Eliezer Tamir f14106478e [BNX2X]: Correct Link management
Properly protect PHY access between two devices on the same board with
a HW lock.

Use GPIO to clear all previous configurations before changing link
parameters.

Shut down the external PHY in case of fan failure.

Reducing the MDC/MDIO clock to 2.5MHz due to problems with some
devices.

Resolve the flow control response according to autoneg with external
PHY.

Unmasking all PHY interrupts in single write to prevent a race in the
interrupts order.

LASI indication fixes to work with peculiarities of PHYs.

Disable MAC RX to avoid a HW bug when closing the MAC under traffic.

Disable parallel detection on HiGig due to HW limitation.

Updating the shared memory structure to work with the current
bootcode.

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:51:50 -08:00
Eliezer Tamir 250479504f [BNX2X]: Correct init_one()
Correct PCI-E info printed by init_one()
In one case it failed to free the netdev. 

Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:50:16 -08:00
Eliezer Tamir c14423fe58 [BNX2X]: Spelling fixes
Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-28 11:49:42 -08:00
Eliezer Tamir a2fbb9ea23 add bnx2x driver for BCM57710
Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:03:53 -08:00