https://bugzilla.kernel.org/show_bug.cgi?id=199887 Pavel Kankovsky (peak@xxxxxxxxxxxxxxxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |peak@xxxxxxxxxxxxxxxxxxxxxx --- Comment #4 from Pavel Kankovsky (peak@xxxxxxxxxxxxxxxxxxxxxx) --- Created attachment 301697 --> https://bugzilla.kernel.org/attachment.cgi?id=301697&action=edit kinda fix I did some experiments with my old QLA2340 (ISP2312, fw 3.03.28) and the most recent stable kernel, ie. 5.19.4. "Async-gnlist" failures seem to be survivable and I decided to ignore them for the time being. In fact, the old driver in 4.9.325 was able to work without MBC_PORT_NODE_NAME_LIST. There was a function issuing that command, namely qla2x00_get_node_name_list(), but AFAICT it was never called. "Async-gpdb" failures are a real problem because they trigger session deletion (qla24xx_handle_gpdb_event() gets an invalid zero login state). As far as I can tell, the new asynchronous implementation provides correct parameters to MBC_GET_PORT_DATABASE (compare qla24xx_async_gpdb() with qla2x00_get_port_database(), HAS_EXTENDED_IDS is true for ISP2312) but 1. the adapter cannot handle the request when it receives it via the IOCB interface, and 2. the driver would not be able to handle returned data anyway because their format is completely different on old non-IS_FWI2_CAPABLE adapters (compare qla24xx_handle_gpdb_event() with the final part of qla2x00_get_port_database()). I tried replacing the new code with a small wrapper around a call to the old qla2x00_get_port_database() sending the request synchronously via the mbox interface... and it worked! The driver was able to finish logins and access available FC targets. See the attached patch. That said, it is a horrible hack done by someone almost totally ignorant of the inner workings of the driver. There is absolutely no guarantee. It might crash your kernel. It might fail to handle some (newly connected?) remote ports. It might brick your adapter. It might wipe all your disk arrays. It might summon the Elder Gods. You have been warned. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
