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The main loop in __ice_clean_ctrlq first checks if a VF might be malicious
before calling ice_vc_process_vf_msg(). This results in duplicate code in
both functions to obtain a reference to the VF, and exports the
ice_is_malicious_vf() from ice_virtchnl.c unnecessarily.
Refactor ice_is_malicious_vf() to be a static function that takes a pointer
to the VF. Call this in ice_vc_process_vf_msg() just after we obtain a
reference to the VF by calling ice_get_vf_by_id.
Pass the mailbox data from the __ice_clean_ctrlq function into
ice_vc_process_vf_msg() instead of calling ice_is_malicious_vf().
This reduces the number of exported functions and avoids the need to obtain
the VF reference twice for every mailbox message.
Note that the state check for ICE_VF_STATE_DIS is kept in
ice_is_malicious_vf() and we call this before checking that state in
ice_vc_process_vf_msg. This is intentional, as we stop responding to VF
messages from a VF once we detect that it may be overflowing the mailbox.
This ensures that we continue to silently ignore the message as before
without responding via ice_vc_send_msg_to_vf().
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_is_malicious_vf() function is currently implemented in ice_sriov.c
This function is not Single Root specific, and a future change is going to
refactor the ice_vc_process_vf_msg() function to call this instead of
calling it before ice_vc_process_vf_msg() in the main loop of
__ice_clean_ctrlq.
To make that change easier to review, first move this function into
ice_virtchnl.c but leave the call in __ice_clean_ctrlq() alone.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_vc_process_vf_msg function is the main entry point for handling
virtchnl messages. This function is defined in ice_virtchnl.c but its
declaration is still in ice_sriov.c
The ice_sriov.c file used to contain all of the virtualization logic until
commit bf93bf791c ("ice: introduce ice_virtchnl.c and ice_virtchnl.h")
moved the virtchnl logic to its own file.
The ice_vc_process_vf_msg function should have had its declaration moved to
ice_virtchnl.h then. Fix this.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add support for 2 virtchnl msgs:
VIRTCHNL_OP_SET_RSS_HENA
VIRTCHNL_OP_GET_RSS_HENA_CAPS
The first one allows VFs to clear all previously programmed
RSS configuration and customize it. The second one returns
the RSS HENA bits allowed by the hardware.
Introduce ice_err_to_virt_err which converts kernel
specific errors to virtchnl errors.
Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
