Date: Wed, 14 Oct 2015 23:47:35 +0000 (UTC) From: "Conrad E. Meyer" <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r289345 - head/sys/dev/ntb/if_ntb Message-ID: <201510142347.t9ENlZtw050693@repo.freebsd.org>
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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;
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