> /* account for the status page. */ > entries++; > >+ /* IQ needs one extra entry to differentiate full vs empty. */ >+ entries++; >+ > /* > * entries must be multiple of 16 for HW. > */ >@@ -801,7 +804,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int >entries, > > chp->rhp = rhp; > chp->cq.size--; /* status page */ >- chp->ibcq.cqe = chp->cq.size; >+ chp->ibcq.cqe = chp->cq.size - 1;
Why does the status page adjust using size--, but we use size - 1 for the extra entry? -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
