Don't assume that csio->data_ptr is pointer to a data buffer that can be passed to icl_get_pdu_data and icl_append_data. For unmapped I/O requests, csio->data_ptr is instead a pointer to a struct bio as indicated by CAM_DATA_BIO. To support these requests, add icl_pdu_append_bio and icl_pdu_get_bio methods which pass a pointer to the bio and an offset and length relative to the bio's buffer. Note that only backends supporting unmapped requests need to implement these hooks. Implement simple no-op hooks for the iser backend. Reviewed by: mav Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D34382 |
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icl_iser.c | ||
icl_iser.h | ||
iser_initiator.c | ||
iser_memory.c | ||
iser_verbs.c |