From 996a24b99d63df08caf89fc03f4783279424788f Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Sat, 9 Mar 2024 10:11:02 +0200 Subject: [PATCH] scsi: ufs: Reuse compose_devman_upiu Move some code fragments into ufshcd_prepare_req_desc_hdr() so it can be used throughout. Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20240309081104.5006-5-avri.altman@wdc.com Reviewed-by: Bart Van Assche Reviewed-by: Bean Huo Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 49 ++++++++++++++------------------------- include/ufs/ufshci.h | 2 +- 2 files changed, 18 insertions(+), 33 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index a089981c7496..823bc28c0cb0 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2710,18 +2710,27 @@ static void ufshcd_disable_intr(struct ufs_hba *hba, u32 intrs) /** * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request * descriptor according to request + * @hba: per adapter instance * @lrbp: pointer to local reference block * @upiu_flags: flags required in the header * @cmd_dir: requests data direction * @ehs_length: Total EHS Length (in 32‐bytes units of all Extra Header Segments) + * @legacy_type: UTP_CMD_TYPE_SCSI or UTP_CMD_TYPE_DEV_MANAGE */ -static void ufshcd_prepare_req_desc_hdr(struct ufshcd_lrb *lrbp, u8 *upiu_flags, - enum dma_data_direction cmd_dir, int ehs_length) +static void +ufshcd_prepare_req_desc_hdr(struct ufs_hba *hba, struct ufshcd_lrb *lrbp, + u8 *upiu_flags, enum dma_data_direction cmd_dir, + int ehs_length, enum utp_cmd_type legacy_type) { struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; struct request_desc_header *h = &req_desc->header; enum utp_data_direction data_direction; + if (hba->ufs_version <= ufshci_version(1, 1)) + lrbp->command_type = legacy_type; + else + lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; + *h = (typeof(*h)){ }; if (cmd_dir == DMA_FROM_DEVICE) { @@ -2854,12 +2863,8 @@ static int ufshcd_compose_devman_upiu(struct ufs_hba *hba, u8 upiu_flags; int ret = 0; - if (hba->ufs_version <= ufshci_version(1, 1)) - lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE; - else - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; + ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, DMA_NONE, 0, UTP_CMD_TYPE_DEV_MANAGE); - ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, DMA_NONE, 0); if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) ufshcd_prepare_utp_query_req_upiu(hba, lrbp, upiu_flags); else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) @@ -2882,13 +2887,8 @@ static void ufshcd_comp_scsi_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) unsigned int ioprio_class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq)); u8 upiu_flags; - if (hba->ufs_version <= ufshci_version(1, 1)) - lrbp->command_type = UTP_CMD_TYPE_SCSI; - else - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; - - ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, - lrbp->cmd->sc_data_direction, 0); + ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, + lrbp->cmd->sc_data_direction, 0, UTP_CMD_TYPE_SCSI); if (ioprio_class == IOPRIO_CLASS_RT) upiu_flags |= UPIU_CMD_FLAGS_CP; ufshcd_prepare_utp_scsi_cmd_upiu(lrbp, upiu_flags); @@ -7229,16 +7229,11 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba, ufshcd_setup_dev_cmd(hba, lrbp, cmd_type, 0, tag); - if (hba->ufs_version <= ufshci_version(1, 1)) - lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE; - else - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; + ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, DMA_NONE, 0, UTP_CMD_TYPE_DEV_MANAGE); /* update the task tag in the request upiu */ req_upiu->header.task_tag = tag; - ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, DMA_NONE, 0); - /* just copy the upiu request as it is */ memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); if (desc_buff && desc_op == UPIU_QUERY_OPCODE_WRITE_DESC) { @@ -7379,24 +7374,14 @@ int ufshcd_advanced_rpmb_req_handler(struct ufs_hba *hba, struct utp_upiu_req *r u8 upiu_flags; u8 *ehs_data; u16 ehs_len; + int ehs = (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) ? 2 : 0; /* Protects use of hba->reserved_slot. */ ufshcd_dev_man_lock(hba); ufshcd_setup_dev_cmd(hba, lrbp, DEV_CMD_TYPE_RPMB, UFS_UPIU_RPMB_WLUN, tag); - /* Advanced RPMB starts from UFS 4.0, so its command type is UTP_CMD_TYPE_UFS_STORAGE */ - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; - - /* - * According to UFSHCI 4.0 specification page 24, if EHSLUTRDS is 0, host controller takes - * EHS length from CMD UPIU, and SW driver use EHS Length field in CMD UPIU. if it is 1, - * HW controller takes EHS length from UTRD. - */ - if (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) - ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, dir, 2); - else - ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, dir, 0); + ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, DMA_NONE, ehs, UTP_CMD_TYPE_DEV_MANAGE); /* update the task tag */ req_upiu->header.task_tag = tag; diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index a196e1c4c3bb..88193f5540e5 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -426,7 +426,7 @@ union ufs_crypto_cfg_entry { */ /* Transfer request command type */ -enum { +enum utp_cmd_type { UTP_CMD_TYPE_SCSI = 0x0, UTP_CMD_TYPE_UFS = 0x1, UTP_CMD_TYPE_DEV_MANAGE = 0x2,