Author: cem
Date: Wed Oct 14 23:47:35 2015
New Revision: 289345
URL: https://svnweb.freebsd.org/changeset/base/289345
Log:
NTB: MFV a1413cfb: correct the spread of queues over mw's
The detection of an uneven number of queues on the given memory windows
was not correct. The mw_num is zero based and the mod should be
division to spread them evenly over the mw's.
Authored by: Jon Mason
Obtained from: Linux (Dual BSD/GPL driver)
Sponsored by: EMC / Isilon Storage Division
Modified:
head/sys/dev/ntb/if_ntb/if_ntb.c
Modified: head/sys/dev/ntb/if_ntb/if_ntb.c
==============================================================================
--- head/sys/dev/ntb/if_ntb/if_ntb.c Wed Oct 14 23:47:23 2015
(r289344)
+++ head/sys/dev/ntb/if_ntb/if_ntb.c Wed Oct 14 23:47:35 2015
(r289345)
@@ -566,7 +566,7 @@ ntb_transport_init_queue(struct ntb_netd
qp->client_ready = NTB_LINK_DOWN;
qp->event_handler = NULL;
- if (nt->max_qps % NTB_NUM_MW && mw_num < nt->max_qps % NTB_NUM_MW)
+ if (nt->max_qps % NTB_NUM_MW && mw_num + 1 < nt->max_qps / NTB_NUM_MW)
num_qps_mw = nt->max_qps / NTB_NUM_MW + 1;
else
num_qps_mw = nt->max_qps / NTB_NUM_MW;
@@ -1197,7 +1197,7 @@ ntb_transport_setup_qp_mw(struct ntb_net
uint8_t mw_num = QP_TO_MW(qp_num);
unsigned int i;
- if (nt->max_qps % NTB_NUM_MW && mw_num < nt->max_qps % NTB_NUM_MW)
+ if (nt->max_qps % NTB_NUM_MW && mw_num + 1 < nt->max_qps / NTB_NUM_MW)
num_qps_mw = nt->max_qps / NTB_NUM_MW + 1;
else
num_qps_mw = nt->max_qps / NTB_NUM_MW;
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "[email protected]"
