With current bnx2x firmware 6.2.9, iSCSI is not supported in DCB
network, so we need to disable it. Add cnic command to disconnect
iSCSI connections and prevent future connections when DCBX negotiation
succeeds.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add missing __rcu annotations and helpers.
minor : Fix some rcu_dereference() calls in macvtap
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Connection ID (cid) management
- Slow-path command and response support
- Update version to 2.2.11.
Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a common function cnic_read_bnx2x_iscsi_mac() to read the iSCSI
MAC address at any specified shared memory location. In NIC Partition
mode, we need to get the MAC address from the MF_CFG area of shared
memory.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the IDs specified by the bnx2x driver when initializing the ring.
We don't have to make code changes when these IDs change in the future.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pass the TCP port parameter for iSCSI connections to the firmware in
proper endian order.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add new interrupt ack functions and other hardware interface logic to
support the new device.
Update version to 2.2.6.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
and put all uio related structures and ring buffers in it. This allows
uio operations to be done independent of the cnic device structures.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bnx2x devices require a 2 second quiet time before sending the last
RAMROD command to destroy a connection. This sleep wait adds up to a
long delay when iscsid is serially destroying maultiple connections.
Create a workqueue to perform the final connection cleanup in the
background to speed up the process. This significantly speeds up the
process as the wait time can be done in parallel for multiple connections.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
so that we can additional bit definitions without requiring a spinlock.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is the new FW HSI blob and the relevant definitions without logic changes.
It also included code adaptation for new HSI. New features are not enabled.
New FW/HSI includes:
- Support for 57712 HW
- Future support for VF (not used)
- Improvements in FW interrupts scheme
- FW FCoE hooks (stubs for future usage)
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Initialize the rings only during cnic_uio_open() and shut them down
during cnic_uio_close(). Check for the new bit CNIC_LCL_FL_RINGS_INITED
before checking for ring interrupt.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The pfid (physical function ID) is the same as PCI function on production
devices. The pfid for future devices will be different and will be used
for internal memory offsets.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Preparation work for upcoming firmware interface changes.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
By creating a common data stucture kcq_info for all devices, the kcq
(kernel completion queue) for all devices can be allocated by common
code.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code makes assumptions about the CID (context ID) memory
space and starting CID that may not be always correct when firmware
changes. In particular, BNX2_ISCSI_START_CID may not always be fixed.
We now calculate cp->max_cid_space and cp->iscsi_start_cid dynamically
instead of using fixed constants. The unused cp->max_iscsi_conn is also
eliminated.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Everytime the iSCSI ring finishes setup or shutdown, we need to return
the SPQ (slow path queue) credit to the bnx2x driver. Without this step,
the SPQ will eventually be full causing iSCSI to fail. This can happen
after 3 or 4 MTU changes for example.
Add code to wait for these slow path commands to complete in the RX ring
and return the SPQ credit to bnx2x.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is easier to expand the flags for other purposes because it does
not require a spin_lock. The next bug fix patch needs a flag in
cnic_local_flags.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We only need to assign the status block address once and it also saves
space in the structure.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Eddie Wai <waie@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Initialize IP ID and handle some additional connection errors.
Signed-off-by: Eddie Wai <waie@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add hardware and software structures for bnx2x devices.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The slow path ulp_start and ulp_stop calls to the bnx2i driver
are sleepable calls and therefore should not be protected using
rcu_read_lock. Fix it by using mutex and setting a bit during
these calls. cnic_unregister_device() will now wait for the bit
to clear before completing the call.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The CNIC driver controls BNX2 hardware rings and resources used by
iSCSI. Most hardware resources for iSCSI are separate from those
used for ethernet networking.
iSCSI uses a separate MAC address and IP address. The CNIC driver
creates a UIO interface to handle the non-offloaded packets such as
ARP, etc in userspace.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
