linux_dsm_epyc7002/drivers/infiniband
Max Gurtovoy 1e5db6c31a IB/iser: Fix sg_tablesize calculation
For devices that can register page list that is bigger than
USHRT_MAX, we actually take the wrong value for sg_tablesize.
E.g: for CX4 max_fast_reg_page_list_len is 65536 (bigger than USHRT_MAX)
so we set sg_tablesize to 0 by mistake. Therefore, each IO that is
bigger than 4k splitted to "< 4k" chunks that cause performance degredation.
Remove wrong sg_tablesize assignment, and use the value that was set during
address resolution handler with the needed casting.

Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24 11:37:45 -05:00
..
core Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hw iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort 2017-01-10 14:01:38 -05:00
sw First round of -rc fixes for 4.10 kernel 2016-12-23 10:38:48 -08:00
ulp IB/iser: Fix sg_tablesize calculation 2017-01-24 11:37:45 -05:00
Kconfig IB: Add vmw_pvrdma driver 2016-12-14 14:55:10 -05:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00