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if_ntb: Fix typo in qp_link_work to match Linux

Throw away the result of the peer SPAD read.  The peer will write our
local SPAD and we need to keep the locally read SPAD value to check if
the remote side is up.

Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Conrad Meyer 2015-10-20 01:54:34 +00:00
parent d5bd08b091
commit 6a88fb3ef8
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=289615

View File

@ -1381,14 +1381,14 @@ ntb_qp_link_work(void *arg)
struct ntb_transport_qp *qp = arg;
struct ntb_softc *ntb = qp->ntb;
struct ntb_transport_ctx *nt = qp->transport;
int val;
uint32_t val, dummy;
ntb_spad_read(ntb, IF_NTB_QP_LINKS, &val);
ntb_peer_spad_write(ntb, IF_NTB_QP_LINKS, val | (1ull << qp->qp_num));
/* query remote spad for qp ready bits */
ntb_peer_spad_read(ntb, IF_NTB_QP_LINKS, &val);
ntb_peer_spad_read(ntb, IF_NTB_QP_LINKS, &dummy);
/* See if the remote side is up */
if ((val & (1ull << qp->qp_num)) != 0) {