Update 5709 mips firmware to 6.2.1a to fix iSCSI performance
regression.  There was an unnecessary context read in the fast path
affecting performance.

Update bnx2 to 2.1.6.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update MIPS firmware to 6.2.1, with improved small packet performance
in RSS mode, and iSCSI CID allocation bug fix on 5708.

Update driver version to 2.0.21.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Improved flow control and simplified interface
- Use hardware RSS indirection table instead of the slower firmware-
  based table
- Lower latency interrupt on 5709
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Reviewed-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New firmware fixes a performance regression on small packets.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Increase FTQ depth to 256 to ehnabce performance.
- Fix RV2P context corruption on 5709 when flow control is enabled.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Better small packet receive performance.
- Better handling of Flow control on 5709.
- Fixed iSCSI TMP ABORT TASK problem.
- Added iSCSI TCP timestamp option.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Based on original patch by Ben Hutchings <ben@decadent.org.uk> and
Bastian Blank <waldi@debian.org>, with the following main changes:

Separated the mips firmware and rv2p firmware into different files
to make it easier to update them separately.

Added some code to fixup the rv2p code with run-time information
such as PAGE_SIZE.

Update version to 2.0.0.
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>