unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

IB/ipath: Set M bit in BTH according to IB spec

Browse source 
According to chapter 17.2.8.1.1, QPs start in the migrated state and
should send packets with the M bit set in the BTH.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2007-06-18 14:24:38 -07:00 committed by Roland Dreier
parent 6d2fad0472
commit 1dd6a1be14
2 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/infiniband/hw/ipath/ipath_rc.c
View file

@ -188,7 +188,7 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
}
qp->s_hdrwords = hwords;
qp->s_cur_size = len;
*bth0p = bth0;
*bth0p = bth0 | (1 << 22); /* Set M bit */
*bth2p = bth2;
return 1;
@ -240,7 +240,7 @@ int ipath_make_rc_req(struct ipath_qp *qp,
/* header size in 32-bit words LRH+BTH = (8+12)/4. */
hwords = 5;
bth0 = 0;
bth0 = 1 << 22; /* Set M bit */
/* Send a request. */
wqe = get_swqe_ptr(qp, qp->s_cur);
@ -604,7 +604,7 @@ static void send_rc_ack(struct ipath_qp *qp)
}
/* read pkey_index w/o lock (its atomic) */
bth0 = ipath_get_pkey(dev->dd, qp->s_pkey_index) |
OP(ACKNOWLEDGE) << 24;
(OP(ACKNOWLEDGE) << 24) | (1 << 22);
if (qp->r_nak_state)
ohdr->u.aeth = cpu_to_be32((qp->r_msn & IPATH_MSN_MASK) |
(qp->r_nak_state <<

2
drivers/infiniband/hw/ipath/ipath_uc.c
View file

@ -86,7 +86,7 @@ int ipath_make_uc_req(struct ipath_qp *qp,
/* header size in 32-bit words LRH+BTH = (8+12)/4. */
hwords = 5;
bth0 = 0;
bth0 = 1 << 22; /* Set M bit */
/* Get the next send request. */
wqe = get_swqe_ptr(qp, qp->s_last);