Lines Matching full:req
102 static ssize_t nvmet_file_submit_bvec(struct nvmet_req *req, loff_t pos, in nvmet_file_submit_bvec() argument
105 struct kiocb *iocb = &req->f.iocb; in nvmet_file_submit_bvec()
110 if (req->cmd->rw.opcode == nvme_cmd_write) { in nvmet_file_submit_bvec()
111 if (req->cmd->rw.control & cpu_to_le16(NVME_RW_FUA)) in nvmet_file_submit_bvec()
113 call_iter = req->ns->file->f_op->write_iter; in nvmet_file_submit_bvec()
116 call_iter = req->ns->file->f_op->read_iter; in nvmet_file_submit_bvec()
120 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec()
123 iocb->ki_filp = req->ns->file; in nvmet_file_submit_bvec()
124 iocb->ki_flags = ki_flags | iocb_flags(req->ns->file); in nvmet_file_submit_bvec()
131 struct nvmet_req *req = container_of(iocb, struct nvmet_req, f.iocb); in nvmet_file_io_done() local
134 if (req->f.bvec != req->inline_bvec) { in nvmet_file_io_done()
135 if (likely(req->f.mpool_alloc == false)) in nvmet_file_io_done()
136 kfree(req->f.bvec); in nvmet_file_io_done()
138 mempool_free(req->f.bvec, req->ns->bvec_pool); in nvmet_file_io_done()
141 if (unlikely(ret != req->transfer_len)) in nvmet_file_io_done()
142 status = errno_to_nvme_status(req, ret); in nvmet_file_io_done()
143 nvmet_req_complete(req, status); in nvmet_file_io_done()
146 static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags) in nvmet_file_execute_io() argument
148 ssize_t nr_bvec = req->sg_cnt; in nvmet_file_execute_io()
157 if (req->f.mpool_alloc && nr_bvec > NVMET_MAX_MPOOL_BVEC) in nvmet_file_execute_io()
160 pos = le64_to_cpu(req->cmd->rw.slba) << req->ns->blksize_shift; in nvmet_file_execute_io()
161 if (unlikely(pos + req->transfer_len > req->ns->size)) { in nvmet_file_execute_io()
162 nvmet_req_complete(req, errno_to_nvme_status(req, -ENOSPC)); in nvmet_file_execute_io()
166 memset(&req->f.iocb, 0, sizeof(struct kiocb)); in nvmet_file_execute_io()
167 for_each_sg(req->sg, sg, req->sg_cnt, i) { in nvmet_file_execute_io()
168 nvmet_file_init_bvec(&req->f.bvec[bv_cnt], sg); in nvmet_file_execute_io()
169 len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
170 total_len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
177 ret = nvmet_file_submit_bvec(req, pos, bv_cnt, len, 0); in nvmet_file_execute_io()
188 if (WARN_ON_ONCE(total_len != req->transfer_len)) { in nvmet_file_execute_io()
203 req->f.iocb.ki_complete = nvmet_file_io_done; in nvmet_file_execute_io()
205 ret = nvmet_file_submit_bvec(req, pos, bv_cnt, total_len, ki_flags); in nvmet_file_execute_io()
226 nvmet_file_io_done(&req->f.iocb, ret, 0); in nvmet_file_execute_io()
232 struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); in nvmet_file_buffered_io_work() local
234 nvmet_file_execute_io(req, 0); in nvmet_file_buffered_io_work()
237 static void nvmet_file_submit_buffered_io(struct nvmet_req *req) in nvmet_file_submit_buffered_io() argument
239 INIT_WORK(&req->f.work, nvmet_file_buffered_io_work); in nvmet_file_submit_buffered_io()
240 queue_work(buffered_io_wq, &req->f.work); in nvmet_file_submit_buffered_io()
243 static void nvmet_file_execute_rw(struct nvmet_req *req) in nvmet_file_execute_rw() argument
245 ssize_t nr_bvec = req->sg_cnt; in nvmet_file_execute_rw()
247 if (!nvmet_check_transfer_len(req, nvmet_rw_data_len(req))) in nvmet_file_execute_rw()
250 if (!req->sg_cnt || !nr_bvec) { in nvmet_file_execute_rw()
251 nvmet_req_complete(req, 0); in nvmet_file_execute_rw()
256 req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec), in nvmet_file_execute_rw()
259 req->f.bvec = req->inline_bvec; in nvmet_file_execute_rw()
261 if (unlikely(!req->f.bvec)) { in nvmet_file_execute_rw()
263 req->f.bvec = mempool_alloc(req->ns->bvec_pool, GFP_KERNEL); in nvmet_file_execute_rw()
264 req->f.mpool_alloc = true; in nvmet_file_execute_rw()
266 req->f.mpool_alloc = false; in nvmet_file_execute_rw()
268 if (req->ns->buffered_io) { in nvmet_file_execute_rw()
269 if (likely(!req->f.mpool_alloc) && in nvmet_file_execute_rw()
270 (req->ns->file->f_mode & FMODE_NOWAIT) && in nvmet_file_execute_rw()
271 nvmet_file_execute_io(req, IOCB_NOWAIT)) in nvmet_file_execute_rw()
273 nvmet_file_submit_buffered_io(req); in nvmet_file_execute_rw()
275 nvmet_file_execute_io(req, 0); in nvmet_file_execute_rw()
278 u16 nvmet_file_flush(struct nvmet_req *req) in nvmet_file_flush() argument
280 return errno_to_nvme_status(req, vfs_fsync(req->ns->file, 1)); in nvmet_file_flush()
285 struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); in nvmet_file_flush_work() local
287 nvmet_req_complete(req, nvmet_file_flush(req)); in nvmet_file_flush_work()
290 static void nvmet_file_execute_flush(struct nvmet_req *req) in nvmet_file_execute_flush() argument
292 if (!nvmet_check_transfer_len(req, 0)) in nvmet_file_execute_flush()
294 INIT_WORK(&req->f.work, nvmet_file_flush_work); in nvmet_file_execute_flush()
295 schedule_work(&req->f.work); in nvmet_file_execute_flush()
298 static void nvmet_file_execute_discard(struct nvmet_req *req) in nvmet_file_execute_discard() argument
307 for (i = 0; i <= le32_to_cpu(req->cmd->dsm.nr); i++) { in nvmet_file_execute_discard()
308 status = nvmet_copy_from_sgl(req, i * sizeof(range), &range, in nvmet_file_execute_discard()
313 offset = le64_to_cpu(range.slba) << req->ns->blksize_shift; in nvmet_file_execute_discard()
315 len <<= req->ns->blksize_shift; in nvmet_file_execute_discard()
316 if (offset + len > req->ns->size) { in nvmet_file_execute_discard()
317 req->error_slba = le64_to_cpu(range.slba); in nvmet_file_execute_discard()
318 status = errno_to_nvme_status(req, -ENOSPC); in nvmet_file_execute_discard()
322 ret = vfs_fallocate(req->ns->file, mode, offset, len); in nvmet_file_execute_discard()
324 req->error_slba = le64_to_cpu(range.slba); in nvmet_file_execute_discard()
325 status = errno_to_nvme_status(req, ret); in nvmet_file_execute_discard()
330 nvmet_req_complete(req, status); in nvmet_file_execute_discard()
335 struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); in nvmet_file_dsm_work() local
337 switch (le32_to_cpu(req->cmd->dsm.attributes)) { in nvmet_file_dsm_work()
339 nvmet_file_execute_discard(req); in nvmet_file_dsm_work()
345 nvmet_req_complete(req, 0); in nvmet_file_dsm_work()
350 static void nvmet_file_execute_dsm(struct nvmet_req *req) in nvmet_file_execute_dsm() argument
352 if (!nvmet_check_data_len_lte(req, nvmet_dsm_len(req))) in nvmet_file_execute_dsm()
354 INIT_WORK(&req->f.work, nvmet_file_dsm_work); in nvmet_file_execute_dsm()
355 schedule_work(&req->f.work); in nvmet_file_execute_dsm()
360 struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); in nvmet_file_write_zeroes_work() local
361 struct nvme_write_zeroes_cmd *write_zeroes = &req->cmd->write_zeroes; in nvmet_file_write_zeroes_work()
367 offset = le64_to_cpu(write_zeroes->slba) << req->ns->blksize_shift; in nvmet_file_write_zeroes_work()
369 req->ns->blksize_shift); in nvmet_file_write_zeroes_work()
371 if (unlikely(offset + len > req->ns->size)) { in nvmet_file_write_zeroes_work()
372 nvmet_req_complete(req, errno_to_nvme_status(req, -ENOSPC)); in nvmet_file_write_zeroes_work()
376 ret = vfs_fallocate(req->ns->file, mode, offset, len); in nvmet_file_write_zeroes_work()
377 nvmet_req_complete(req, ret < 0 ? errno_to_nvme_status(req, ret) : 0); in nvmet_file_write_zeroes_work()
380 static void nvmet_file_execute_write_zeroes(struct nvmet_req *req) in nvmet_file_execute_write_zeroes() argument
382 if (!nvmet_check_transfer_len(req, 0)) in nvmet_file_execute_write_zeroes()
384 INIT_WORK(&req->f.work, nvmet_file_write_zeroes_work); in nvmet_file_execute_write_zeroes()
385 schedule_work(&req->f.work); in nvmet_file_execute_write_zeroes()
388 u16 nvmet_file_parse_io_cmd(struct nvmet_req *req) in nvmet_file_parse_io_cmd() argument
390 struct nvme_command *cmd = req->cmd; in nvmet_file_parse_io_cmd()
395 req->execute = nvmet_file_execute_rw; in nvmet_file_parse_io_cmd()
398 req->execute = nvmet_file_execute_flush; in nvmet_file_parse_io_cmd()
401 req->execute = nvmet_file_execute_dsm; in nvmet_file_parse_io_cmd()
404 req->execute = nvmet_file_execute_write_zeroes; in nvmet_file_parse_io_cmd()
408 cmd->common.opcode, req->sq->qid); in nvmet_file_parse_io_cmd()
409 req->error_loc = offsetof(struct nvme_common_command, opcode); in nvmet_file_parse_io_cmd()