From 4b97c12fe60ce532f07fd4aa5b5acad90834fcae Mon Sep 17 00:00:00 2001 From: Joachim Fenkes Date: Fri, 30 Nov 2007 16:19:41 -0800 Subject: [PATCH] --- yaml --- r: 74425 b: refs/heads/master c: b1812582ba94b5f377d5d3cec7646cc17d84e733 h: refs/heads/master i: 74423: 816cf47e1cd0b407b4551ceaaad5669bbe045803 v: v3 --- [refs] | 2 +- trunk/drivers/infiniband/hw/ehca/ehca_av.c | 8 ++++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/[refs] b/[refs] index 649a5bde28a2..5b78803de422 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 1401b53acc0328d96bacb2a3393d2852699df96b +refs/heads/master: b1812582ba94b5f377d5d3cec7646cc17d84e733 diff --git a/trunk/drivers/infiniband/hw/ehca/ehca_av.c b/trunk/drivers/infiniband/hw/ehca/ehca_av.c index 453eb995c1d4..f7782c882ab4 100644 --- a/trunk/drivers/infiniband/hw/ehca/ehca_av.c +++ b/trunk/drivers/infiniband/hw/ehca/ehca_av.c @@ -76,8 +76,12 @@ int ehca_calc_ipd(struct ehca_shca *shca, int port, link = ib_width_enum_to_int(pa.active_width) * pa.active_speed; - /* IPD = round((link / path) - 1) */ - *ipd = ((link + (path >> 1)) / path) - 1; + if (path >= link) + /* no need to throttle if path faster than link */ + *ipd = 0; + else + /* IPD = round((link / path) - 1) */ + *ipd = ((link + (path >> 1)) / path) - 1; return 0; }