Hi Bart Linux localhost.localdomain 4.4.5 #1 SMP Sat Mar 12 14:37:30 EST 2016 x86_64 x86_64 x86_64 GNU/Linux Within srpt on the array I have options ib_srpt srp_max_req_size=4148 On the client I also only have options ib_srpt srp_max_req_size=4148 I have not tuned srp_sq_size as I was only aware of parm: srp_max_req_size:Maximum size of SRP request messages in bytes. (int) parm: srpt_srq_size:Shared receive queue (SRQ) size. (int) parm: srpt_service_guid:Using this value for ioc_guid, id_ext, and cm_listen_id instead of using the node_guid of the first HCA. Please explain what that does and thanks Laurence Oberman Principal Software Maintenance Engineer Red Hat Global Support Services ----- Original Message ----- From: "Bart Van Assche" <bart.vanassche@xxxxxxxxxxx> To: "Laurence Oberman" <loberman@xxxxxxxxxx>, linux-rdma@xxxxxxxxxxxxxxx Cc: "James Hartsock" <hartsjc@xxxxxxxxxx> Sent: Saturday, March 12, 2016 7:38:15 PM Subject: Re: sg_map failures when tuning SRP via ib_srp module parameters for maximum SG entries On 03/12/16 06:56, Laurence Oberman wrote: > [ 6097.205716] ib_srpt IB send queue full (needed 68) > [ 6097.233325] ib_srpt srpt_xfer_data[2731] queue full -- ret=-12 Hello Laurence, Are you familiar with the ib_srpt parameter srp_sq_size, a parameter that is configurable through configfs ? Please note that changing this parameter only affects new sessions but that it not affects any existing sessions. Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
