Hal Rosenstock wrote:
On Tue, 2004-11-09 at 14:56, Sean Hefty wrote:
Sean Hefty wrote:
I have two nodes directly connected. When trying to bring up the openib node, I receive a local length error on the CQ after trying to perform a send.
I'm continuing to debug...
static int agent_mad_send(struct ib_mad_agent *mad_agent, struct ib_agent_port_private *port_priv, struct ib_mad_private *mad, struct ib_grh *grh, struct ib_wc *wc) { ... /* PCI mapping */ gather_list.addr = pci_map_single(mad_agent->device->dma_device, &mad->grh, sizeof *mad - sizeof mad->header, PCI_DMA_TODEVICE); gather_list.length = sizeof *mad - sizeof mad->header; gather_list.lkey = (*port_priv->mr).lkey;
Wouldn't this result in sending the GRH data buffer before the MAD buffer? Does mthca check the size of sends that are posted to QP0/1 and report an error if they are larger than 256 bytes?
Doesn't that just map starting at the GRH ? This is to handle PMA responses which might have GRHs.
It does. But the GRH buffer shouldn't be sent by the user. My thought was the this would result in the receiver mis-interpreting the received MAD, and probably dropping it. But I'm seeing that the work request completes in error, which makes me think that there's still another error somewhere.
- Sean _______________________________________________ openib-general mailing list [EMAIL PROTECTED] http://openib.org/mailman/listinfo/openib-general
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