int offset, int nob)
{
kqswnal_rx_t *krx = (kqswnal_rx_t *)ktx->ktx_args[0];
- char *buffer = (char *)page_address(krx->krx_pages[0]);
+ char *buffer = (char *)page_address(krx->krx_kiov[0].kiov_page);
kqswnal_remotemd_t *rmd = (kqswnal_remotemd_t *)(buffer + KQSW_HDR_SIZE);
int rc;
#if MULTIRAIL_EKC
}
memcpy(ktx->ktx_buffer + sizeof(*hdr) + sizeof(csum), &csum, sizeof(csum));
#endif
-
+
if (kqswnal_data.kqn_optimized_gets &&
type == PTL_MSG_GET && /* doing a GET */
nid == targetnid) { /* not forwarding */
{
int rc;
kqswnal_tx_t *ktx;
- struct iovec *iov = fwd->kprfd_iov;
+ ptl_kiov_t *kiov = fwd->kprfd_kiov;
int niov = fwd->kprfd_niov;
int nob = fwd->kprfd_nob;
ptl_nid_t nid = fwd->kprfd_gateway_nid;
LBUG ();
#endif
/* The router wants this NAL to forward a packet */
- CDEBUG (D_NET, "forwarding [%p] to "LPX64", %d frags %d bytes\n",
+ CDEBUG (D_NET, "forwarding [%p] to "LPX64", payload: %d frags %d bytes\n",
fwd, nid, niov, nob);
- LASSERT (niov > 0);
-
ktx = kqswnal_get_idle_tx (fwd, 0);
if (ktx == NULL) /* can't get txd right now */
return; /* fwd will be scheduled when tx desc freed */
goto failed;
}
- if (nob > KQSW_NRXMSGBYTES_LARGE) {
- CERROR ("Can't forward [%p] to "LPX64
- ": size %d bigger than max packet size %ld\n",
- fwd, nid, nob, (long)KQSW_NRXMSGBYTES_LARGE);
- rc = -EMSGSIZE;
- goto failed;
- }
+ /* copy hdr into pre-mapped buffer */
+ memcpy(ktx->ktx_buffer, fwd->kprfd_hdr, sizeof(ptl_hdr_t));
+ ktx->ktx_wire_hdr = (ptl_hdr_t *)ktx->ktx_buffer;
- ktx->ktx_port = (nob <= (KQSW_HDR_SIZE + KQSW_SMALLPAYLOAD)) ?
+ ktx->ktx_port = (nob <= KQSW_SMALLPAYLOAD) ?
EP_MSG_SVC_PORTALS_SMALL : EP_MSG_SVC_PORTALS_LARGE;
ktx->ktx_nid = nid;
ktx->ktx_state = KTX_FORWARDING;
ktx->ktx_args[0] = fwd;
+ ktx->ktx_nfrag = ktx->ktx_firsttmpfrag = 1;
- if ((kqswnal_data.kqn_copy_small_fwd || niov > 1) &&
- nob <= KQSW_TX_BUFFER_SIZE)
+ if (nob <= KQSW_TX_MAXCONTIG)
{
- /* send from ktx's pre-mapped contiguous buffer? */
- lib_copy_iov2buf (ktx->ktx_buffer, niov, iov, 0, nob);
+ /* send payload from ktx's pre-mapped contiguous buffer */
#if MULTIRAIL_EKC
ep_nmd_subset(&ktx->ktx_frags[0], &ktx->ktx_ebuffer,
- 0, nob);
+ 0, KQSW_HDR_SIZE + nob);
#else
ktx->ktx_frags[0].Base = ktx->ktx_ebuffer;
- ktx->ktx_frags[0].Len = nob;
+ ktx->ktx_frags[0].Len = KQSW_HDR_SIZE + nob;
#endif
- ktx->ktx_nfrag = ktx->ktx_firsttmpfrag = 1;
- ktx->ktx_wire_hdr = (ptl_hdr_t *)ktx->ktx_buffer;
+ if (nob > 0)
+ lib_copy_kiov2buf(ktx->ktx_buffer + KQSW_HDR_SIZE,
+ niov, kiov, 0, nob);
}
else
{
- /* zero copy */
- ktx->ktx_nfrag = ktx->ktx_firsttmpfrag = 0;
- rc = kqswnal_map_tx_iov (ktx, 0, nob, niov, iov);
+ /* zero copy payload */
+#if MULTIRAIL_EKC
+ ep_nmd_subset(&ktx->ktx_frags[0], &ktx->ktx_ebuffer,
+ 0, KQSW_HDR_SIZE);
+#else
+ ktx->ktx_frags[0].Base = ktx->ktx_ebuffer;
+ ktx->ktx_frags[0].Len = KQSW_HDR_SIZE;
+#endif
+ rc = kqswnal_map_tx_kiov (ktx, 0, nob, niov, kiov);
if (rc != 0)
goto failed;
-
- ktx->ktx_wire_hdr = (ptl_hdr_t *)iov[0].iov_base;
}
rc = kqswnal_launch (ktx);
if (error != 0)
{
- ptl_hdr_t *hdr = (ptl_hdr_t *)page_address (krx->krx_pages[0]);
+ ptl_hdr_t *hdr = (ptl_hdr_t *)page_address (krx->krx_kiov[0].kiov_page);
CERROR("Failed to route packet from "LPX64" to "LPX64": %d\n",
NTOH__u64(hdr->src_nid), NTOH__u64(hdr->dest_nid),error);
void
kqswnal_rx (kqswnal_rx_t *krx)
{
- ptl_hdr_t *hdr = (ptl_hdr_t *) page_address (krx->krx_pages[0]);
+ ptl_hdr_t *hdr = (ptl_hdr_t *) page_address(krx->krx_kiov[0].kiov_page);
ptl_nid_t dest_nid = NTOH__u64 (hdr->dest_nid);
+ int payload_nob;
int nob;
int niov;
return;
}
- /* NB forwarding may destroy iov; rebuild every time */
- for (nob = krx->krx_nob, niov = 0; nob > 0; nob -= PAGE_SIZE, niov++)
- {
- LASSERT (niov < krx->krx_npages);
- krx->krx_iov[niov].iov_base= page_address(krx->krx_pages[niov]);
- krx->krx_iov[niov].iov_len = MIN(PAGE_SIZE, nob);
+ nob = payload_nob = krx->krx_nob - KQSW_HDR_SIZE;
+ niov = 0;
+ if (nob > 0) {
+ krx->krx_kiov[0].kiov_offset = KQSW_HDR_SIZE;
+ krx->krx_kiov[0].kiov_len = MIN(PAGE_SIZE - KQSW_HDR_SIZE, nob);
+ niov = 1;
+ nob -= PAGE_SIZE - KQSW_HDR_SIZE;
+
+ while (nob > 0) {
+ LASSERT (niov < krx->krx_npages);
+
+ krx->krx_kiov[niov].kiov_offset = 0;
+ krx->krx_kiov[niov].kiov_len = MIN(PAGE_SIZE, nob);
+ niov++;
+ nob -= PAGE_SIZE;
+ }
}
- kpr_fwd_init (&krx->krx_fwd, dest_nid,
- krx->krx_nob, niov, krx->krx_iov,
+ kpr_fwd_init (&krx->krx_fwd, dest_nid,
+ hdr, payload_nob, niov, krx->krx_kiov,
kqswnal_fwd_callback, krx);
kpr_fwd_start (&kqswnal_data.kqn_router, &krx->krx_fwd);
void
kqswnal_csum_error (kqswnal_rx_t *krx, int ishdr)
{
- ptl_hdr_t *hdr = (ptl_hdr_t *)page_address (krx->krx_pages[0]);
+ ptl_hdr_t *hdr = (ptl_hdr_t *)page_address (krx->krx_kiov[0].kiov_page);
CERROR ("%s checksum mismatch %p: dnid "LPX64", snid "LPX64
", dpid %d, spid %d, type %d\n",
size_t rlen)
{
kqswnal_rx_t *krx = (kqswnal_rx_t *)private;
+ char *buffer = page_address(krx->krx_kiov[0].kiov_page);
int page;
char *page_ptr;
int page_nob;
#if KQSW_CHECKSUM
kqsw_csum_t senders_csum;
kqsw_csum_t payload_csum = 0;
- kqsw_csum_t hdr_csum = kqsw_csum(0, page_address(krx->krx_pages[0]),
- sizeof(ptl_hdr_t));
+ kqsw_csum_t hdr_csum = kqsw_csum(0, buffer, sizeof(ptl_hdr_t));
size_t csum_len = mlen;
int csum_frags = 0;
int csum_nob = 0;
atomic_inc (&csum_counter);
- memcpy (&senders_csum, ((char *)page_address (krx->krx_pages[0])) +
- sizeof (ptl_hdr_t), sizeof (kqsw_csum_t));
+ memcpy (&senders_csum, buffer + sizeof (ptl_hdr_t), sizeof (kqsw_csum_t));
if (senders_csum != hdr_csum)
kqswnal_csum_error (krx, 1);
#endif
if (mlen != 0) {
page = 0;
- page_ptr = ((char *) page_address(krx->krx_pages[0])) +
- KQSW_HDR_SIZE;
+ page_ptr = buffer + KQSW_HDR_SIZE;
page_nob = PAGE_SIZE - KQSW_HDR_SIZE;
LASSERT (niov > 0);
{
page++;
LASSERT (page < krx->krx_npages);
- page_ptr = page_address(krx->krx_pages[page]);
+ page_ptr = page_address(krx->krx_kiov[page].kiov_page);
page_nob = PAGE_SIZE;
}
}
#if KQSW_CHECKSUM
- memcpy (&senders_csum, ((char *)page_address (krx->krx_pages[0])) +
- sizeof(ptl_hdr_t) + sizeof(kqsw_csum_t), sizeof(kqsw_csum_t));
+ memcpy (&senders_csum, buffer + sizeof(ptl_hdr_t) + sizeof(kqsw_csum_t),
+ sizeof(kqsw_csum_t));
if (csum_len != rlen)
CERROR("Unable to checksum data in user's buffer\n");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff