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Mon, 1 Mar 2021 09:00:56 -0500 (EST) From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v4 05/12] hw/block/nvme: remove the req dependency in map functions Date: Mon, 1 Mar 2021 15:00:40 +0100 Message-Id: <20210301140047.106261-6-its@irrelevant.dk> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301140047.106261-1-its@irrelevant.dk> References: <20210301140047.106261-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=66.111.4.25; envelope-from=its@irrelevant.dk; helo=out1-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , qemu-block@nongnu.org, Klaus Jensen , Gollu Appalanaidu , Max Reitz , Klaus Jensen , Stefan Hajnoczi , Keith Busch Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen The PRP and SGL mapping functions does not have any particular need for the entire NvmeRequest as a parameter. Clean it up. Signed-off-by: Klaus Jensen Reviewed-by: Keith Busch --- hw/block/nvme.c | 61 ++++++++++++++++++++++--------------------- hw/block/trace-events | 4 +-- 2 files changed, 33 insertions(+), 32 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index ae411f04752b..fda2d480cb66 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -535,8 +535,8 @@ static inline bool nvme_addr_is_dma(NvmeCtrl *n, hwaddr addr) return !(nvme_addr_is_cmb(n, addr) || nvme_addr_is_pmr(n, addr)); } -static uint16_t nvme_map_prp(NvmeCtrl *n, uint64_t prp1, uint64_t prp2, - uint32_t len, NvmeRequest *req) +static uint16_t nvme_map_prp(NvmeCtrl *n, NvmeSg *sg, uint64_t prp1, + uint64_t prp2, uint32_t len) { hwaddr trans_len = n->page_size - (prp1 % n->page_size); trans_len = MIN(len, trans_len); @@ -546,9 +546,9 @@ static uint16_t nvme_map_prp(NvmeCtrl *n, uint64_t prp1, uint64_t prp2, trace_pci_nvme_map_prp(trans_len, len, prp1, prp2, num_prps); - nvme_sg_init(n, &req->sg, nvme_addr_is_dma(n, prp1)); + nvme_sg_init(n, sg, nvme_addr_is_dma(n, prp1)); - status = nvme_map_addr(n, &req->sg, prp1, trans_len); + status = nvme_map_addr(n, sg, prp1, trans_len); if (status) { goto unmap; } @@ -598,7 +598,7 @@ static uint16_t nvme_map_prp(NvmeCtrl *n, uint64_t prp1, uint64_t prp2, } trans_len = MIN(len, n->page_size); - status = nvme_map_addr(n, &req->sg, prp_ent, trans_len); + status = nvme_map_addr(n, sg, prp_ent, trans_len); if (status) { goto unmap; } @@ -612,7 +612,7 @@ static uint16_t nvme_map_prp(NvmeCtrl *n, uint64_t prp1, uint64_t prp2, status = NVME_INVALID_PRP_OFFSET | NVME_DNR; goto unmap; } - status = nvme_map_addr(n, &req->sg, prp2, len); + status = nvme_map_addr(n, sg, prp2, len); if (status) { goto unmap; } @@ -622,7 +622,7 @@ static uint16_t nvme_map_prp(NvmeCtrl *n, uint64_t prp1, uint64_t prp2, return NVME_SUCCESS; unmap: - nvme_sg_unmap(&req->sg); + nvme_sg_unmap(sg); return status; } @@ -632,7 +632,7 @@ unmap: */ static uint16_t nvme_map_sgl_data(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor *segment, uint64_t nsgld, - size_t *len, NvmeRequest *req) + size_t *len, NvmeCmd *cmd) { dma_addr_t addr, trans_len; uint32_t dlen; @@ -643,7 +643,7 @@ static uint16_t nvme_map_sgl_data(NvmeCtrl *n, NvmeSg *sg, switch (type) { case NVME_SGL_DESCR_TYPE_BIT_BUCKET: - if (req->cmd.opcode == NVME_CMD_WRITE) { + if (cmd->opcode == NVME_CMD_WRITE) { continue; } case NVME_SGL_DESCR_TYPE_DATA_BLOCK: @@ -672,7 +672,7 @@ static uint16_t nvme_map_sgl_data(NvmeCtrl *n, NvmeSg *sg, break; } - trace_pci_nvme_err_invalid_sgl_excess_length(nvme_cid(req)); + trace_pci_nvme_err_invalid_sgl_excess_length(dlen); return NVME_DATA_SGL_LEN_INVALID | NVME_DNR; } @@ -701,7 +701,7 @@ next: } static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, - size_t len, NvmeRequest *req) + size_t len, NvmeCmd *cmd) { /* * Read the segment in chunks of 256 descriptors (one 4k page) to avoid @@ -722,7 +722,7 @@ static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, sgld = &sgl; addr = le64_to_cpu(sgl.addr); - trace_pci_nvme_map_sgl(nvme_cid(req), NVME_SGL_TYPE(sgl.type), len); + trace_pci_nvme_map_sgl(NVME_SGL_TYPE(sgl.type), len); nvme_sg_init(n, sg, nvme_addr_is_dma(n, addr)); @@ -731,7 +731,7 @@ static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, * be mapped directly. */ if (NVME_SGL_TYPE(sgl.type) == NVME_SGL_DESCR_TYPE_DATA_BLOCK) { - status = nvme_map_sgl_data(n, sg, sgld, 1, &len, req); + status = nvme_map_sgl_data(n, sg, sgld, 1, &len, cmd); if (status) { goto unmap; } @@ -770,7 +770,7 @@ static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, } status = nvme_map_sgl_data(n, sg, segment, SEG_CHUNK_SIZE, - &len, req); + &len, cmd); if (status) { goto unmap; } @@ -796,7 +796,7 @@ static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, switch (NVME_SGL_TYPE(last_sgld->type)) { case NVME_SGL_DESCR_TYPE_DATA_BLOCK: case NVME_SGL_DESCR_TYPE_BIT_BUCKET: - status = nvme_map_sgl_data(n, sg, segment, nsgld, &len, req); + status = nvme_map_sgl_data(n, sg, segment, nsgld, &len, cmd); if (status) { goto unmap; } @@ -823,7 +823,7 @@ static uint16_t nvme_map_sgl(NvmeCtrl *n, NvmeSg *sg, NvmeSglDescriptor sgl, * Do not map the last descriptor; it will be a Segment or Last Segment * descriptor and is handled by the next iteration. */ - status = nvme_map_sgl_data(n, sg, segment, nsgld - 1, &len, req); + status = nvme_map_sgl_data(n, sg, segment, nsgld - 1, &len, cmd); if (status) { goto unmap; } @@ -843,24 +843,20 @@ unmap: return status; } -static uint16_t nvme_map_dptr(NvmeCtrl *n, size_t len, NvmeRequest *req) +static uint16_t nvme_map_dptr(NvmeCtrl *n, NvmeSg *sg, size_t len, + NvmeCmd *cmd) { uint64_t prp1, prp2; - switch (NVME_CMD_FLAGS_PSDT(req->cmd.flags)) { + switch (NVME_CMD_FLAGS_PSDT(cmd->flags)) { case NVME_PSDT_PRP: - prp1 = le64_to_cpu(req->cmd.dptr.prp1); - prp2 = le64_to_cpu(req->cmd.dptr.prp2); + prp1 = le64_to_cpu(cmd->dptr.prp1); + prp2 = le64_to_cpu(cmd->dptr.prp2); - return nvme_map_prp(n, prp1, prp2, len, req); + return nvme_map_prp(n, sg, prp1, prp2, len); case NVME_PSDT_SGL_MPTR_CONTIGUOUS: case NVME_PSDT_SGL_MPTR_SGL: - /* SGLs shall not be used for Admin commands in NVMe over PCIe */ - if (!req->sq->sqid) { - return NVME_INVALID_FIELD | NVME_DNR; - } - - return nvme_map_sgl(n, &req->sg, req->cmd.dptr.sgl, len, req); + return nvme_map_sgl(n, sg, cmd->dptr.sgl, len, cmd); default: return NVME_INVALID_FIELD; } @@ -871,7 +867,7 @@ static uint16_t nvme_dma(NvmeCtrl *n, uint8_t *ptr, uint32_t len, { uint16_t status = NVME_SUCCESS; - status = nvme_map_dptr(n, len, req); + status = nvme_map_dptr(n, &req->sg, len, &req->cmd); if (status) { return status; } @@ -2086,7 +2082,7 @@ static uint16_t nvme_read(NvmeCtrl *n, NvmeRequest *req) } } - status = nvme_map_dptr(n, data_size, req); + status = nvme_map_dptr(n, &req->sg, data_size, &req->cmd); if (status) { goto invalid; } @@ -2175,7 +2171,7 @@ static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append, data_offset = nvme_l2b(ns, slba); if (!wrz) { - status = nvme_map_dptr(n, data_size, req); + status = nvme_map_dptr(n, &req->sg, data_size, &req->cmd); if (status) { goto invalid; } @@ -3850,6 +3846,11 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest *req) return NVME_INVALID_OPCODE | NVME_DNR; } + /* SGLs shall not be used for Admin commands in NVMe over PCIe */ + if (NVME_CMD_FLAGS_PSDT(req->cmd.flags) != NVME_PSDT_PRP) { + return NVME_INVALID_FIELD | NVME_DNR; + } + switch (req->cmd.opcode) { case NVME_ADM_CMD_DELETE_SQ: return nvme_del_sq(n, req); diff --git a/hw/block/trace-events b/hw/block/trace-events index 25ba51ea5405..51d94b9ddfe8 100644 --- a/hw/block/trace-events +++ b/hw/block/trace-events @@ -37,7 +37,7 @@ pci_nvme_dma_read(uint64_t prp1, uint64_t prp2) "DMA read, prp1=0x%"PRIx64" prp2 pci_nvme_map_addr(uint64_t addr, uint64_t len) "addr 0x%"PRIx64" len %"PRIu64"" pci_nvme_map_addr_cmb(uint64_t addr, uint64_t len) "addr 0x%"PRIx64" len %"PRIu64"" pci_nvme_map_prp(uint64_t trans_len, uint32_t len, uint64_t prp1, uint64_t prp2, int num_prps) "trans_len %"PRIu64" len %"PRIu32" prp1 0x%"PRIx64" prp2 0x%"PRIx64" num_prps %d" -pci_nvme_map_sgl(uint16_t cid, uint8_t typ, uint64_t len) "cid %"PRIu16" type 0x%"PRIx8" len %"PRIu64"" +pci_nvme_map_sgl(uint8_t typ, uint64_t len) "type 0x%"PRIx8" len %"PRIu64"" pci_nvme_io_cmd(uint16_t cid, uint32_t nsid, uint16_t sqid, uint8_t opcode, const char *opname) "cid %"PRIu16" nsid %"PRIu32" sqid %"PRIu16" opc 0x%"PRIx8" opname '%s'" pci_nvme_admin_cmd(uint16_t cid, uint16_t sqid, uint8_t opcode, const char *opname) "cid %"PRIu16" sqid %"PRIu16" opc 0x%"PRIx8" opname '%s'" pci_nvme_flush(uint16_t cid, uint32_t nsid) "cid %"PRIu16" nsid %"PRIu32"" @@ -124,7 +124,7 @@ pci_nvme_err_aio(uint16_t cid, const char *errname, uint16_t status) "cid %"PRIu pci_nvme_err_copy_invalid_format(uint8_t format) "format 0x%"PRIx8"" pci_nvme_err_invalid_sgld(uint16_t cid, uint8_t typ) "cid %"PRIu16" type 0x%"PRIx8"" pci_nvme_err_invalid_num_sgld(uint16_t cid, uint8_t typ) "cid %"PRIu16" type 0x%"PRIx8"" -pci_nvme_err_invalid_sgl_excess_length(uint16_t cid) "cid %"PRIu16"" +pci_nvme_err_invalid_sgl_excess_length(uint32_t residual) "residual %"PRIu32"" pci_nvme_err_invalid_dma(void) "PRP/SGL is too small for transfer size" pci_nvme_err_invalid_prplist_ent(uint64_t prplist) "PRP list entry is not page aligned: 0x%"PRIx64"" pci_nvme_err_invalid_prp2_align(uint64_t prp2) "PRP2 is not page aligned: 0x%"PRIx64""