From 8c8e2422bde198efa57566d768400f73cc485aad Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:36 +0000 Subject: scsi: mpi3mr: Replace deprecated strncpy() with assignments Really, there's no bug with the current code. Let's just ditch strncpy() all together. We can just copy the const strings instead of reserving room on the stack. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-1-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr_fw.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 528f19f782f2..da0710cdac1d 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -3676,7 +3676,7 @@ static const struct { * mpi3mr_print_ioc_info - Display controller information * @mrioc: Adapter instance reference * - * Display controller personalit, capability, supported + * Display controller personality, capability, supported * protocols etc. * * Return: Nothing @@ -3685,20 +3685,20 @@ static void mpi3mr_print_ioc_info(struct mpi3mr_ioc *mrioc) { int i = 0, bytes_written = 0; - char personality[16]; + const char *personality; char protocol[50] = {0}; char capabilities[100] = {0}; struct mpi3mr_compimg_ver *fwver = &mrioc->facts.fw_ver; switch (mrioc->facts.personality) { case MPI3_IOCFACTS_FLAGS_PERSONALITY_EHBA: - strncpy(personality, "Enhanced HBA", sizeof(personality)); + personality = "Enhanced HBA"; break; case MPI3_IOCFACTS_FLAGS_PERSONALITY_RAID_DDR: - strncpy(personality, "RAID", sizeof(personality)); + personality = "RAID"; break; default: - strncpy(personality, "Unknown", sizeof(personality)); + personality = "Unknown"; break; } -- cgit v1.2.3 From b7e9712a02e869d2c15a3a2284b078771fd484d7 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:37 +0000 Subject: scsi: mpt3sas: Replace deprecated strncpy() with strscpy() The replacement in mpt3sas_base.c is a trivial one because desc is already zero-initialized meaning there is no functional change here. For mpt3sas_transport.c, we know edev is zero-initialized as well while manufacture_reply comes from dma_alloc_coherent(). No functional change here either. For all cases, use the more idiomatic strscpy() usage of: strscpy(dest, src, sizeof(dest)) Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-2-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 2 +- drivers/scsi/mpt3sas/mpt3sas_transport.c | 18 +++++++++--------- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index fc8c45e15235..f9a5349ae5bd 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -4774,7 +4774,7 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc) char desc[17] = {0}; u32 iounit_pg1_flags; - strncpy(desc, ioc->manu_pg0.ChipName, 16); + strscpy(desc, ioc->manu_pg0.ChipName, sizeof(desc)); ioc_info(ioc, "%s: FWVersion(%02d.%02d.%02d.%02d), ChipRevision(0x%02x)\n", desc, (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c index 421ea511b664..76f9a9177198 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_transport.c +++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c @@ -458,17 +458,17 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, goto out; manufacture_reply = data_out + sizeof(struct rep_manu_request); - strncpy(edev->vendor_id, manufacture_reply->vendor_id, - SAS_EXPANDER_VENDOR_ID_LEN); - strncpy(edev->product_id, manufacture_reply->product_id, - SAS_EXPANDER_PRODUCT_ID_LEN); - strncpy(edev->product_rev, manufacture_reply->product_rev, - SAS_EXPANDER_PRODUCT_REV_LEN); + strscpy(edev->vendor_id, manufacture_reply->vendor_id, + sizeof(edev->vendor_id)); + strscpy(edev->product_id, manufacture_reply->product_id, + sizeof(edev->product_id)); + strscpy(edev->product_rev, manufacture_reply->product_rev, + sizeof(edev->product_rev)); edev->level = manufacture_reply->sas_format & 1; if (edev->level) { - strncpy(edev->component_vendor_id, - manufacture_reply->component_vendor_id, - SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN); + strscpy(edev->component_vendor_id, + manufacture_reply->component_vendor_id, + sizeof(edev->component_vendor_id)); tmp = (u8 *)&manufacture_reply->component_id; edev->component_id = tmp[0] << 8 | tmp[1]; edev->component_revision_id = -- cgit v1.2.3 From 2303149d584feade8074295b717451b36ac63307 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:38 +0000 Subject: scsi: qedf: Replace deprecated strncpy() with strscpy() We expect slowpath_params.name to be NUL-terminated based on its future usage with other string APIs: | static int qed_slowpath_start(struct qed_dev *cdev, | struct qed_slowpath_params *params) ... | strscpy(drv_version.name, params->name, | MCP_DRV_VER_STR_SIZE - 4); Moreover, NUL-padding is not necessary as the only use for this slowpath name parameter is to copy into the drv_version.name field. Also, let's prefer using strscpy(src, dest, sizeof(src)) in two instances (one of which is outside of the scsi system but it is trivial and related to this patch). We can see the drv_version.name size here: | struct qed_mcp_drv_version { | u32 version; | u8 name[MCP_DRV_VER_STR_SIZE - 4]; | }; Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-3-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/net/ethernet/qlogic/qed/qed_main.c | 2 +- drivers/scsi/qedf/qedf_main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c index c278f8893042..d39e198fe8db 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -1351,7 +1351,7 @@ static int qed_slowpath_start(struct qed_dev *cdev, (params->drv_rev << 8) | (params->drv_eng); strscpy(drv_version.name, params->name, - MCP_DRV_VER_STR_SIZE - 4); + sizeof(drv_version.name)); rc = qed_mcp_send_drv_version(hwfn, hwfn->p_main_ptt, &drv_version); if (rc) { diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index a58353b7b4e8..fd12439cbaab 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -3468,7 +3468,7 @@ retry_probe: slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER; slowpath_params.drv_rev = QEDF_DRIVER_REV_VER; slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER; - strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE); + strscpy(slowpath_params.name, "qedf", sizeof(slowpath_params.name)); rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params); if (rc) { QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n"); -- cgit v1.2.3 From 4f94864d210f31d9247e5189b2af368dcc05c395 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:39 +0000 Subject: scsi: qla4xxx: Replace deprecated strncpy() with strscpy() Replace 3 instances of strncpy in ql4_mbx.c No bugs exist in the current implementation as some care was taken to ensure the write length was decreased by one to leave some space for a NUL-byte. However, instead of using strncpy(dest, src, LEN-1) we can opt for strscpy(dest, src, sizeof(dest)) which will result in NUL-termination as well. It should be noted that the entire chap_table is zero-allocated so the NUL-padding provided by strncpy is not needed. While here, I noticed that MIN_CHAP_SECRET_LEN was not used anywhere. Since strscpy gives us the number of bytes copied into the destination buffer (or an -E2BIG) we can check both for an error during copying and also for a non-length compliant secret. Add a new jump label so we can properly clean up our chap_table should we have to abort due to bad secret. The third instance in this file involves some more peculiar handling of strings: | uint32_t mbox_cmd[MBOX_REG_COUNT]; | ... | memset(&mbox_cmd, 0, sizeof(mbox_cmd)); | ... | mbox_cmd[0] = MBOX_CMD_SET_PARAM; | if (param == SET_DRVR_VERSION) { | mbox_cmd[1] = SET_DRVR_VERSION; | strncpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION, | MAX_DRVR_VER_LEN - 1); mbox_cmd has a size of 8: | #define MBOX_REG_COUNT 8 ... and its type width is 4 bytes. Hence, we have 32 bytes to work with here. The first 4 bytes are used as a flag for the MBOX_CMD_SET_PARAM. The next 4 bytes are used for SET_DRVR_VERSION. We now have 32-8=24 bytes remaining -- which thankfully is what MAX_DRVR_VER_LEN is equal to | #define MAX_DRVR_VER_LEN 24 ... and the thing we're copying into this pseudo-string buffer is | #define QLA4XXX_DRIVER_VERSION "5.04.00-k6" ... which is great because its less than 24 bytes (therefore we aren't truncating the source). All to say, there's no bug in the existing implementation (yay!) but we can clean the code up a bit by using strscpy(). In ql4_os.c, there aren't any strncpy() uses to replace but there are some existing strscpy() calls that could be made more idiomatic. Where possible, use strscpy(dest, src, sizeof(dest)). Note that chap_rec->password has a size of ISCSI_CHAP_AUTH_SECRET_MAX_LEN | #define ISCSI_CHAP_AUTH_SECRET_MAX_LEN 256 ... while the current strscpy usage uses QL4_CHAP_MAX_SECRET_LEN | #define QL4_CHAP_MAX_SECRET_LEN 100 ... however since chap_table->secret was set and bounded properly in its string assignment its probably safe here to switch over to sizeof(). | struct iscsi_chap_rec { ... | char username[ISCSI_CHAP_AUTH_NAME_MAX_LEN]; | uint8_t password[ISCSI_CHAP_AUTH_SECRET_MAX_LEN]; ... | }; | strscpy(chap_rec->password, chap_table->secret, | QL4_CHAP_MAX_SECRET_LEN); Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-4-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/qla4xxx/ql4_mbx.c | 17 ++++++++++++----- drivers/scsi/qla4xxx/ql4_os.c | 14 +++++++------- 2 files changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 249f1d7021d4..75125d2021f5 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -1641,6 +1641,7 @@ int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password, struct ql4_chap_table *chap_table; uint32_t chap_size = 0; dma_addr_t chap_dma; + ssize_t secret_len; chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); if (chap_table == NULL) { @@ -1652,9 +1653,13 @@ int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password, chap_table->flags |= BIT_6; /* peer */ else chap_table->flags |= BIT_7; /* local */ - chap_table->secret_len = strlen(password); - strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN - 1); - strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN - 1); + + secret_len = strscpy(chap_table->secret, password, + sizeof(chap_table->secret)); + if (secret_len < MIN_CHAP_SECRET_LEN) + goto cleanup_chap_table; + chap_table->secret_len = (uint8_t)secret_len; + strscpy(chap_table->name, username, sizeof(chap_table->name)); chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE); if (is_qla40XX(ha)) { @@ -1679,6 +1684,8 @@ int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password, memcpy((struct ql4_chap_table *)ha->chap_list + idx, chap_table, sizeof(struct ql4_chap_table)); } + +cleanup_chap_table: dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); if (rval != QLA_SUCCESS) ret = -EINVAL; @@ -2281,8 +2288,8 @@ int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param) mbox_cmd[0] = MBOX_CMD_SET_PARAM; if (param == SET_DRVR_VERSION) { mbox_cmd[1] = SET_DRVR_VERSION; - strncpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION, - MAX_DRVR_VER_LEN - 1); + strscpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION, + MAX_DRVR_VER_LEN); } else { ql4_printk(KERN_ERR, ha, "%s: invalid parameter 0x%x\n", __func__, param); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 675332e49a7b..17cccd14765f 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -799,10 +799,10 @@ static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, chap_rec->chap_tbl_idx = i; strscpy(chap_rec->username, chap_table->name, - ISCSI_CHAP_AUTH_NAME_MAX_LEN); - strscpy(chap_rec->password, chap_table->secret, - QL4_CHAP_MAX_SECRET_LEN); - chap_rec->password_length = chap_table->secret_len; + sizeof(chap_rec->username)); + chap_rec->password_length = strscpy(chap_rec->password, + chap_table->secret, + sizeof(chap_rec->password)); if (chap_table->flags & BIT_7) /* local */ chap_rec->chap_type = CHAP_TYPE_OUT; @@ -6291,8 +6291,8 @@ static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, tddb->tpgt = sess->tpgt; tddb->port = conn->persistent_port; - strscpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); - strscpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); + strscpy(tddb->iscsi_name, sess->targetname, sizeof(tddb->iscsi_name)); + strscpy(tddb->ip_addr, conn->persistent_address, sizeof(tddb->ip_addr)); } static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, @@ -7792,7 +7792,7 @@ static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, } strscpy(flash_tddb->iscsi_name, fnode_sess->targetname, - ISCSI_NAME_SIZE); + sizeof(flash_tddb->iscsi_name)); if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); -- cgit v1.2.3 From 1b60c86dd9928688469a9dd09582538aead85d32 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:40 +0000 Subject: scsi: devinfo: Replace strncpy() and manual pad Depending on the state of @compatible, we are going to do different things with our @to buffer. When @compatible is true we want a NUL-term'd and NUL-padded destination buffer. Conversely, if @compatible is false we just want a space-padded destination buffer (no NUL-term required). As per: /** * scsi_dev_info_list_add_keyed - add one dev_info list entry. * @compatible: if true, null terminate short strings. Otherwise space pad. ... Note that we can't easily use strtomem_pad() here as the size of the @to buffer is unknown to the compiler due to indirection layers. Now, the intent of the code is more clear (I probably didn't even need to add a comment -- that's how clear it is). Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-5-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_devinfo.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index ba7237e83863..a7071e71389e 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -293,14 +293,16 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, size_t from_length; from_length = strlen(from); - /* This zero-pads the destination */ - strncpy(to, from, to_length); - if (from_length < to_length && !compatible) { - /* - * space pad the string if it is short. - */ - memset(&to[from_length], ' ', to_length - from_length); - } + + /* + * null pad and null terminate if compatible + * otherwise space pad + */ + if (compatible) + strscpy_pad(to, from, to_length); + else + memcpy_and_pad(to, to_length, from, from_length, ' '); + if (from_length > to_length) printk(KERN_WARNING "%s: %s string '%s' is too long\n", __func__, name, from); -- cgit v1.2.3 From 8fd4c9c8e1f33b76c02b0cb0421abafb1cf91e6b Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:41 +0000 Subject: scsi: smartpqi: Replace deprecated strncpy() with strscpy() buffer->driver_version is sized 32: | struct bmic_host_wellness_driver_version { | ... | char driver_version[32]; ... the source string "Linux " + DRIVER_VERISON is sized at 16. There's really no bug in the existing code since the buffers are sized appropriately with great care taken to manually NUL-terminate the destination buffer. Nonetheless, let's make the swap over to strscpy() for robustness' (and readability's) sake. Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-6-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index ceff1ec13f9e..bfe6f42e8e96 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1041,9 +1041,8 @@ static int pqi_write_driver_version_to_host_wellness( buffer->driver_version_tag[1] = 'V'; put_unaligned_le16(sizeof(buffer->driver_version), &buffer->driver_version_length); - strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, - sizeof(buffer->driver_version) - 1); - buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; + strscpy(buffer->driver_version, "Linux " DRIVER_VERSION, + sizeof(buffer->driver_version)); buffer->dont_write_tag[0] = 'D'; buffer->dont_write_tag[1] = 'W'; buffer->end_tag[0] = 'Z'; -- cgit v1.2.3 From 855ce06f9104e8b4b336807f3c941381bf845eb1 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Tue, 5 Mar 2024 23:34:42 +0000 Subject: scsi: wd33c93: Replace deprecated strncpy() with strscpy() @p1 is assigned to @setup_buffer and then we manually assign a NUL-byte at the first index. This renders the following strlen() call useless. Moreover, we don't need to reassign p1 to setup_buffer for any reason -- neither do we need to manually set a NUL-byte at the end. strscpy() resolves all this code making it easier to read. Even considering the path where @str is falsey, the manual NUL-byte assignment is useless as setup_buffer is declared with static storage duration in the top-level scope which should NUL-initialize the whole buffer. Reviewed-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20240305-strncpy-drivers-scsi-mpi3mr-mpi3mr_fw-c-v3-7-5b78a13ff984@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/wd33c93.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c index e4fafc77bd20..a44b60c9004a 100644 --- a/drivers/scsi/wd33c93.c +++ b/drivers/scsi/wd33c93.c @@ -1721,9 +1721,7 @@ wd33c93_setup(char *str) p1 = setup_buffer; *p1 = '\0'; if (str) - strncpy(p1, str, SETUP_BUFFER_SIZE - strlen(setup_buffer)); - setup_buffer[SETUP_BUFFER_SIZE - 1] = '\0'; - p1 = setup_buffer; + strscpy(p1, str, SETUP_BUFFER_SIZE); i = 0; while (*p1 && (i < MAX_SETUP_ARGS)) { p2 = strchr(p1, ','); -- cgit v1.2.3 From abeded46bc1922e2249f6665654b5d81e7c5e1f1 Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:12 -0800 Subject: scsi: ata: libata-sata: Factor out NCQ Priority configuration helpers Export libata NCQ Priority configuration helpers to be reused for libsas managed SATA devices. Switched locking from spin_lock_irq() to spin_lock_irqsave(). In the future someone might call these helper functions when interrupts are disabled. spin_unlock_irq() could lead to a premature re-enabling of interrupts, whereas spin_unlock_irqrestore() restores the interrupt state to its condition prior to the spin_lock_irqsave() call. Acked-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-2-ipylypiv@google.com Reviewed-by: Niklas Cassel Signed-off-by: Martin K. Petersen --- drivers/ata/libata-sata.c | 160 +++++++++++++++++++++++++++++++++++----------- include/linux/libata.h | 6 ++ 2 files changed, 128 insertions(+), 38 deletions(-) diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c index 0fb1934875f2..a8d773003d74 100644 --- a/drivers/ata/libata-sata.c +++ b/drivers/ata/libata-sata.c @@ -848,80 +848,143 @@ DEVICE_ATTR(link_power_management_policy, S_IRUGO | S_IWUSR, ata_scsi_lpm_show, ata_scsi_lpm_store); EXPORT_SYMBOL_GPL(dev_attr_link_power_management_policy); -static ssize_t ata_ncq_prio_supported_show(struct device *device, - struct device_attribute *attr, - char *buf) +/** + * ata_ncq_prio_supported - Check if device supports NCQ Priority + * @ap: ATA port of the target device + * @sdev: SCSI device + * @supported: Address of a boolean to store the result + * + * Helper to check if device supports NCQ Priority feature. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @supported + * * %-ENODEV - Failed to find the ATA device + */ +int ata_ncq_prio_supported(struct ata_port *ap, struct scsi_device *sdev, + bool *supported) { - struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev; - bool ncq_prio_supported; + unsigned long flags; int rc = 0; - spin_lock_irq(ap->lock); + spin_lock_irqsave(ap->lock, flags); dev = ata_scsi_find_dev(ap, sdev); if (!dev) rc = -ENODEV; else - ncq_prio_supported = dev->flags & ATA_DFLAG_NCQ_PRIO; - spin_unlock_irq(ap->lock); + *supported = dev->flags & ATA_DFLAG_NCQ_PRIO; + spin_unlock_irqrestore(ap->lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(ata_ncq_prio_supported); + +static ssize_t ata_ncq_prio_supported_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool supported; + int rc; + + rc = ata_ncq_prio_supported(ap, sdev, &supported); + if (rc) + return rc; - return rc ? rc : sysfs_emit(buf, "%u\n", ncq_prio_supported); + return sysfs_emit(buf, "%d\n", supported); } DEVICE_ATTR(ncq_prio_supported, S_IRUGO, ata_ncq_prio_supported_show, NULL); EXPORT_SYMBOL_GPL(dev_attr_ncq_prio_supported); -static ssize_t ata_ncq_prio_enable_show(struct device *device, - struct device_attribute *attr, - char *buf) +/** + * ata_ncq_prio_enabled - Check if NCQ Priority is enabled + * @ap: ATA port of the target device + * @sdev: SCSI device + * @enabled: Address of a boolean to store the result + * + * Helper to check if NCQ Priority feature is enabled. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @enabled + * * %-ENODEV - Failed to find the ATA device + */ +int ata_ncq_prio_enabled(struct ata_port *ap, struct scsi_device *sdev, + bool *enabled) { - struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev; - bool ncq_prio_enable; + unsigned long flags; int rc = 0; - spin_lock_irq(ap->lock); + spin_lock_irqsave(ap->lock, flags); dev = ata_scsi_find_dev(ap, sdev); if (!dev) rc = -ENODEV; else - ncq_prio_enable = dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLED; - spin_unlock_irq(ap->lock); + *enabled = dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLED; + spin_unlock_irqrestore(ap->lock, flags); - return rc ? rc : sysfs_emit(buf, "%u\n", ncq_prio_enable); + return rc; } +EXPORT_SYMBOL_GPL(ata_ncq_prio_enabled); -static ssize_t ata_ncq_prio_enable_store(struct device *device, - struct device_attribute *attr, - const char *buf, size_t len) +static ssize_t ata_ncq_prio_enable_show(struct device *device, + struct device_attribute *attr, + char *buf) { struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap; - struct ata_device *dev; - long int input; - int rc = 0; + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool enabled; + int rc; - rc = kstrtol(buf, 10, &input); + rc = ata_ncq_prio_enabled(ap, sdev, &enabled); if (rc) return rc; - if ((input < 0) || (input > 1)) - return -EINVAL; - ap = ata_shost_to_port(sdev->host); - dev = ata_scsi_find_dev(ap, sdev); - if (unlikely(!dev)) - return -ENODEV; + return sysfs_emit(buf, "%d\n", enabled); +} + +/** + * ata_ncq_prio_enable - Enable/disable NCQ Priority + * @ap: ATA port of the target device + * @sdev: SCSI device + * @enable: true - enable NCQ Priority, false - disable NCQ Priority + * + * Helper to enable/disable NCQ Priority feature. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @enabled + * * %-ENODEV - Failed to find the ATA device + * * %-EINVAL - NCQ Priority is not supported or CDL is enabled + */ +int ata_ncq_prio_enable(struct ata_port *ap, struct scsi_device *sdev, + bool enable) +{ + struct ata_device *dev; + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(ap->lock, flags); - spin_lock_irq(ap->lock); + dev = ata_scsi_find_dev(ap, sdev); + if (!dev) { + rc = -ENODEV; + goto unlock; + } if (!(dev->flags & ATA_DFLAG_NCQ_PRIO)) { rc = -EINVAL; goto unlock; } - if (input) { + if (enable) { if (dev->flags & ATA_DFLAG_CDL_ENABLED) { ata_dev_err(dev, "CDL must be disabled to enable NCQ priority\n"); @@ -934,9 +997,30 @@ static ssize_t ata_ncq_prio_enable_store(struct device *device, } unlock: - spin_unlock_irq(ap->lock); + spin_unlock_irqrestore(ap->lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(ata_ncq_prio_enable); + +static ssize_t ata_ncq_prio_enable_store(struct device *device, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool enable; + int rc; + + rc = kstrtobool(buf, &enable); + if (rc) + return rc; + + rc = ata_ncq_prio_enable(ap, sdev, enable); + if (rc) + return rc; - return rc ? rc : len; + return len; } DEVICE_ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR, diff --git a/include/linux/libata.h b/include/linux/libata.h index 26d68115afb8..6dd9a4f9ca7c 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1157,6 +1157,12 @@ extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth); extern int ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, int queue_depth); +extern int ata_ncq_prio_supported(struct ata_port *ap, struct scsi_device *sdev, + bool *supported); +extern int ata_ncq_prio_enabled(struct ata_port *ap, struct scsi_device *sdev, + bool *enabled); +extern int ata_ncq_prio_enable(struct ata_port *ap, struct scsi_device *sdev, + bool enable); extern struct ata_device *ata_dev_pair(struct ata_device *adev); extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); -- cgit v1.2.3 From b4d3ddd2df7531e35c5f4e0b048d0999851747ae Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:13 -0800 Subject: scsi: libsas: Define NCQ Priority sysfs attributes for SATA devices libata sysfs attributes cannot be used for libsas-managed SATA devices because the ata_port location is different for libsas. Defined sysfs attributes (visible for SATA devices only): - /sys/block/sda/device/ncq_prio_enable - /sys/block/sda/device/ncq_prio_supported The newly defined attributes will pass the correct ata_port to libata helper functions. Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-3-ipylypiv@google.com Reviewed-by: Niklas Cassel Signed-off-by: Martin K. Petersen --- drivers/scsi/libsas/sas_ata.c | 82 +++++++++++++++++++++++++++++++++++++++++++ include/scsi/sas_ata.h | 6 ++++ 2 files changed, 88 insertions(+) diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 12e2653846e3..b57c041a5544 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -964,3 +964,85 @@ int sas_execute_ata_cmd(struct domain_device *device, u8 *fis, int force_phy_id) force_phy_id, &tmf_task); } EXPORT_SYMBOL_GPL(sas_execute_ata_cmd); + +static ssize_t sas_ncq_prio_supported_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct domain_device *ddev = sdev_to_domain_dev(sdev); + bool supported; + int rc; + + rc = ata_ncq_prio_supported(ddev->sata_dev.ap, sdev, &supported); + if (rc) + return rc; + + return sysfs_emit(buf, "%d\n", supported); +} + +DEVICE_ATTR(ncq_prio_supported, S_IRUGO, sas_ncq_prio_supported_show, NULL); + +static ssize_t sas_ncq_prio_enable_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct domain_device *ddev = sdev_to_domain_dev(sdev); + bool enabled; + int rc; + + rc = ata_ncq_prio_enabled(ddev->sata_dev.ap, sdev, &enabled); + if (rc) + return rc; + + return sysfs_emit(buf, "%d\n", enabled); +} + +static ssize_t sas_ncq_prio_enable_store(struct device *device, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct domain_device *ddev = sdev_to_domain_dev(sdev); + bool enable; + int rc; + + rc = kstrtobool(buf, &enable); + if (rc) + return rc; + + rc = ata_ncq_prio_enable(ddev->sata_dev.ap, sdev, enable); + if (rc) + return rc; + + return len; +} + +DEVICE_ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR, + sas_ncq_prio_enable_show, sas_ncq_prio_enable_store); + +static struct attribute *sas_ata_sdev_attrs[] = { + &dev_attr_ncq_prio_supported.attr, + &dev_attr_ncq_prio_enable.attr, + NULL +}; + +static umode_t sas_ata_attr_is_visible(struct kobject *kobj, + struct attribute *attr, int i) +{ + struct device *dev = kobj_to_dev(kobj); + struct scsi_device *sdev = to_scsi_device(dev); + struct domain_device *ddev = sdev_to_domain_dev(sdev); + + if (!dev_is_sata(ddev)) + return 0; + + return attr->mode; +} + +const struct attribute_group sas_ata_sdev_attr_group = { + .attrs = sas_ata_sdev_attrs, + .is_visible = sas_ata_attr_is_visible, +}; +EXPORT_SYMBOL_GPL(sas_ata_sdev_attr_group); diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h index 2f8c719840a6..92e27e7bf088 100644 --- a/include/scsi/sas_ata.h +++ b/include/scsi/sas_ata.h @@ -39,6 +39,9 @@ int smp_ata_check_ready_type(struct ata_link *link); int sas_discover_sata(struct domain_device *dev); int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy, struct domain_device *child, int phy_id); + +extern const struct attribute_group sas_ata_sdev_attr_group; + #else static inline void sas_ata_disabled_notice(void) @@ -123,6 +126,9 @@ static inline int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *p sas_ata_disabled_notice(); return -ENODEV; } + +#define sas_ata_sdev_attr_group ((struct attribute_group) {}) + #endif #endif /* _SAS_ATA_H_ */ -- cgit v1.2.3 From 9fa095ae65472a3fb82ac5e27a31abf2ede74ae8 Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:14 -0800 Subject: scsi: pm80xx: Add libsas SATA sysfs attributes group The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Acked-by: Jack Wang Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Reviewed-by: Niklas Cassel Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-4-ipylypiv@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/pm8001/pm8001_ctl.c | 5 +++++ drivers/scsi/pm8001/pm8001_init.c | 1 + drivers/scsi/pm8001/pm8001_sas.h | 1 + 3 files changed, 7 insertions(+) diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index 7b27618fd7b2..85ff95c6543a 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -1039,3 +1039,8 @@ const struct attribute_group *pm8001_host_groups[] = { &pm8001_host_attr_group, NULL }; + +const struct attribute_group *pm8001_sdev_groups[] = { + &sas_ata_sdev_attr_group, + NULL +}; diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index ed6b7d954dda..e6b1108f6117 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -134,6 +134,7 @@ static const struct scsi_host_template pm8001_sht = { .compat_ioctl = sas_ioctl, #endif .shost_groups = pm8001_host_groups, + .sdev_groups = pm8001_sdev_groups, .track_queue_depth = 1, .cmd_per_lun = 32, .map_queues = pm8001_map_queues, diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index 3ccb7371902f..ced6721380a8 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -717,6 +717,7 @@ int pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha); void pm8001_free_dev(struct pm8001_device *pm8001_dev); /* ctl shared API */ extern const struct attribute_group *pm8001_host_groups[]; +extern const struct attribute_group *pm8001_sdev_groups[]; #define PM8001_INVALID_TAG ((u32)-1) -- cgit v1.2.3 From 95ee29a7b3792c855530848f070c332ce83e54cd Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:15 -0800 Subject: scsi: mvsas: Add libsas SATA sysfs attributes group The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-5-ipylypiv@google.com Reviewed-by: Niklas Cassel Signed-off-by: Martin K. Petersen --- drivers/scsi/mvsas/mv_init.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 43ebb331e216..f1090bb5f2c9 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -26,6 +26,7 @@ static const struct mvs_chip_info mvs_chips[] = { }; static const struct attribute_group *mvst_host_groups[]; +static const struct attribute_group *mvst_sdev_groups[]; #define SOC_SAS_NUM 2 @@ -53,6 +54,7 @@ static const struct scsi_host_template mvs_sht = { .compat_ioctl = sas_ioctl, #endif .shost_groups = mvst_host_groups, + .sdev_groups = mvst_sdev_groups, .track_queue_depth = 1, }; @@ -779,6 +781,11 @@ static struct attribute *mvst_host_attrs[] = { ATTRIBUTE_GROUPS(mvst_host); +static const struct attribute_group *mvst_sdev_groups[] = { + &sas_ata_sdev_attr_group, + NULL +}; + module_init(mvs_init); module_exit(mvs_exit); -- cgit v1.2.3 From a23971e8ff0c43d47e1772b62c2916ff0b768fca Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:16 -0800 Subject: scsi: hisi_sas: Add libsas SATA sysfs attributes group The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Omitted hisi_sas_v1_hw.c because v1 HW doesn't support SATA. Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-6-ipylypiv@google.com Reviewed-by: Niklas Cassel Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 6 ++++++ drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 73b378837da7..b5d379ebe05d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -3544,6 +3544,11 @@ static struct attribute *host_v2_hw_attrs[] = { ATTRIBUTE_GROUPS(host_v2_hw); +static const struct attribute_group *sdev_groups_v2_hw[] = { + &sas_ata_sdev_attr_group, + NULL +}; + static void map_queues_v2_hw(struct Scsi_Host *shost) { struct hisi_hba *hisi_hba = shost_priv(shost); @@ -3585,6 +3590,7 @@ static const struct scsi_host_template sht_v2_hw = { .compat_ioctl = sas_ioctl, #endif .shost_groups = host_v2_hw_groups, + .sdev_groups = sdev_groups_v2_hw, .host_reset = hisi_sas_host_reset, .map_queues = map_queues_v2_hw, .host_tagset = 1, diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 7d2a33514538..ebdfb7e7c88d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2929,6 +2929,11 @@ static struct attribute *host_v3_hw_attrs[] = { ATTRIBUTE_GROUPS(host_v3_hw); +static const struct attribute_group *sdev_groups_v3_hw[] = { + &sas_ata_sdev_attr_group, + NULL +}; + #define HISI_SAS_DEBUGFS_REG(x) {#x, x} struct hisi_sas_debugfs_reg_lu { @@ -3340,6 +3345,7 @@ static const struct scsi_host_template sht_v3_hw = { .compat_ioctl = sas_ioctl, #endif .shost_groups = host_v3_hw_groups, + .sdev_groups = sdev_groups_v3_hw, .tag_alloc_policy = BLK_TAG_ALLOC_RR, .host_reset = hisi_sas_host_reset, .host_tagset = 1, -- cgit v1.2.3 From 14cc341229fc11657115481e5b5c214856c38724 Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:17 -0800 Subject: scsi: aic94xx: Add libsas SATA sysfs attributes group The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-7-ipylypiv@google.com Reviewed-by: Niklas Cassel Signed-off-by: Martin K. Petersen --- drivers/scsi/aic94xx/aic94xx_init.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 8a3340d8d7ad..ccccd0eb6275 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -14,6 +14,7 @@ #include #include +#include #include #include "aic94xx.h" @@ -34,6 +35,7 @@ MODULE_PARM_DESC(use_msi, "\n" static struct scsi_transport_template *aic94xx_transport_template; static int asd_scan_finished(struct Scsi_Host *, unsigned long); static void asd_scan_start(struct Scsi_Host *); +static const struct attribute_group *asd_sdev_groups[]; static const struct scsi_host_template aic94xx_sht = { .module = THIS_MODULE, @@ -60,6 +62,7 @@ static const struct scsi_host_template aic94xx_sht = { .compat_ioctl = sas_ioctl, #endif .track_queue_depth = 1, + .sdev_groups = asd_sdev_groups, }; static int asd_map_memio(struct asd_ha_struct *asd_ha) @@ -951,6 +954,11 @@ static void asd_remove_driver_attrs(struct device_driver *driver) driver_remove_file(driver, &driver_attr_version); } +static const struct attribute_group *asd_sdev_groups[] = { + &sas_ata_sdev_attr_group, + NULL +}; + static struct sas_domain_function_template aic94xx_transport_functions = { .lldd_dev_found = asd_dev_found, .lldd_dev_gone = asd_dev_gone, -- cgit v1.2.3 From c65c4360b3a0a8ecc1f2122620204a33d965966e Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Thu, 7 Mar 2024 13:44:18 -0800 Subject: scsi: isci: Add libsas SATA sysfs attributes group The added sysfs attributes group enables the configuration of NCQ Priority feature for HBAs that rely on libsas to manage SATA devices. Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Jason Yan Reviewed-by: Hannes Reinecke Reviewed-by: Niklas Cassel Signed-off-by: Igor Pylypiv Link: https://lore.kernel.org/r/20240307214418.3812290-8-ipylypiv@google.com Signed-off-by: Martin K. Petersen --- drivers/scsi/isci/init.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index c582a3932cea..d0a23ce4afba 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -149,6 +149,11 @@ static struct attribute *isci_host_attrs[] = { ATTRIBUTE_GROUPS(isci_host); +static const struct attribute_group *isci_sdev_groups[] = { + &sas_ata_sdev_attr_group, + NULL +}; + static const struct scsi_host_template isci_sht = { .module = THIS_MODULE, @@ -176,6 +181,7 @@ static const struct scsi_host_template isci_sht = { .compat_ioctl = sas_ioctl, #endif .shost_groups = isci_host_groups, + .sdev_groups = isci_sdev_groups, .track_queue_depth = 1, }; -- cgit v1.2.3 From bcd39f639e9e10e2b2d63604ec7c011cd21e52c1 Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:34 +0000 Subject: scsi: libsas: Add LIBSAS_SHT_BASE There is much duplication in the scsi_host_template structure for the drivers which use libsas. Similar to how a standard template is used in libata with __ATA_BASE_SHT, create a standard template in LIBSAS_SHT_BASE. Don't set a default for max_sectors at SCSI_DEFAULT_MAX_SECTORS, as scsi_host_alloc() will default to this value automatically. Even though some drivers don't set proc_name, it won't make much difference to set as DRV_NAME. Also add LIBSAS_SHT_BASE_NO_SLAVE_INIT for the hisi_sas drivers which have custom .slave_alloc and .slave_configure methods. Reviewed-by: Jason Yan Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-2-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Signed-off-by: Martin K. Petersen --- include/scsi/libsas.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index f5257103fdb6..d06a0570f4c5 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -726,4 +726,33 @@ void sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event, void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event, gfp_t gfp_flags); +#define __LIBSAS_SHT_BASE \ + .module = THIS_MODULE, \ + .name = DRV_NAME, \ + .proc_name = DRV_NAME, \ + .queuecommand = sas_queuecommand, \ + .dma_need_drain = ata_scsi_dma_need_drain, \ + .target_alloc = sas_target_alloc, \ + .change_queue_depth = sas_change_queue_depth, \ + .bios_param = sas_bios_param, \ + .this_id = -1, \ + .eh_device_reset_handler = sas_eh_device_reset_handler, \ + .eh_target_reset_handler = sas_eh_target_reset_handler, \ + .target_destroy = sas_target_destroy, \ + .ioctl = sas_ioctl, \ + +#ifdef CONFIG_COMPAT +#define _LIBSAS_SHT_BASE __LIBSAS_SHT_BASE \ + .compat_ioctl = sas_ioctl, +#else +#define _LIBSAS_SHT_BASE __LIBSAS_SHT_BASE +#endif + +#define LIBSAS_SHT_BASE _LIBSAS_SHT_BASE \ + .slave_configure = sas_slave_configure, \ + .slave_alloc = sas_slave_alloc, \ + +#define LIBSAS_SHT_BASE_NO_SLAVE_INIT _LIBSAS_SHT_BASE + + #endif /* _SASLIB_H_ */ -- cgit v1.2.3 From ad802f7f27fc9f8a2dd463b815d10aca8a3cc668 Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:35 +0000 Subject: scsi: pm8001: Use LIBSAS_SHT_BASE Use standard template for scsi_host_template structure to reduce duplication. Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-3-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Reviewed-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/pm8001/pm8001_init.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index ed6b7d954dda..2ba320ff0d50 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -110,29 +110,11 @@ static void pm8001_map_queues(struct Scsi_Host *shost) * The main structure which LLDD must register for scsi core. */ static const struct scsi_host_template pm8001_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .proc_name = DRV_NAME, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, - .slave_configure = sas_slave_configure, + LIBSAS_SHT_BASE .scan_finished = pm8001_scan_finished, .scan_start = pm8001_scan_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, .can_queue = 1, - .this_id = -1, .sg_tablesize = PM8001_MAX_DMA_SG, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, - .slave_alloc = sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .shost_groups = pm8001_host_groups, .track_queue_depth = 1, .cmd_per_lun = 32, -- cgit v1.2.3 From d53e4d77568abf5cf135f65b0ed369a6d73af3e9 Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:36 +0000 Subject: scsi: hisi_sas: Use LIBSAS_SHT_BASE_NO_SLAVE_INIT Use standard template for scsi_host_template structure to reduce duplication. Reviewed-by: Jason Yan Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-4-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 18 +----------------- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 18 +----------------- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 18 +----------------- 3 files changed, 3 insertions(+), 51 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index 3c555579f9a1..161feae3acab 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -1735,28 +1735,12 @@ static struct attribute *host_v1_hw_attrs[] = { ATTRIBUTE_GROUPS(host_v1_hw); static const struct scsi_host_template sht_v1_hw = { - .name = DRV_NAME, - .proc_name = DRV_NAME, - .module = THIS_MODULE, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, + LIBSAS_SHT_BASE_NO_SLAVE_INIT .slave_configure = hisi_sas_slave_configure, .scan_finished = hisi_sas_scan_finished, .scan_start = hisi_sas_scan_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, - .this_id = -1, .sg_tablesize = HISI_SAS_SGE_PAGE_CNT, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, .slave_alloc = hisi_sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .shost_groups = host_v1_hw_groups, .host_reset = hisi_sas_host_reset, }; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 73b378837da7..b8646f6e4c6d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -3562,28 +3562,12 @@ static void map_queues_v2_hw(struct Scsi_Host *shost) } static const struct scsi_host_template sht_v2_hw = { - .name = DRV_NAME, - .proc_name = DRV_NAME, - .module = THIS_MODULE, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, + LIBSAS_SHT_BASE_NO_SLAVE_INIT .slave_configure = hisi_sas_slave_configure, .scan_finished = hisi_sas_scan_finished, .scan_start = hisi_sas_scan_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, - .this_id = -1, .sg_tablesize = HISI_SAS_SGE_PAGE_CNT, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, .slave_alloc = hisi_sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .shost_groups = host_v2_hw_groups, .host_reset = hisi_sas_host_reset, .map_queues = map_queues_v2_hw, diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 7d2a33514538..16ef89002fd4 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3315,30 +3315,14 @@ static void hisi_sas_map_queues(struct Scsi_Host *shost) } static const struct scsi_host_template sht_v3_hw = { - .name = DRV_NAME, - .proc_name = DRV_NAME, - .module = THIS_MODULE, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, + LIBSAS_SHT_BASE_NO_SLAVE_INIT .slave_configure = slave_configure_v3_hw, .scan_finished = hisi_sas_scan_finished, .scan_start = hisi_sas_scan_start, .map_queues = hisi_sas_map_queues, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, - .this_id = -1, .sg_tablesize = HISI_SAS_SGE_PAGE_CNT, .sg_prot_tablesize = HISI_SAS_SGE_PAGE_CNT, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, .slave_alloc = hisi_sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .shost_groups = host_v3_hw_groups, .tag_alloc_policy = BLK_TAG_ALLOC_RR, .host_reset = hisi_sas_host_reset, -- cgit v1.2.3 From 30993a6b27ef5eb22fef0884fdb7e3b8926a4deb Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:37 +0000 Subject: scsi: aic94xx: Use LIBSAS_SHT_BASE Use standard template for scsi_host_template structure to reduce duplication. Reviewed-by: Jason Yan Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-5-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Signed-off-by: Martin K. Petersen --- drivers/scsi/aic94xx/aic94xx_init.c | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 8a3340d8d7ad..53fe68124ff4 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -24,6 +24,7 @@ /* The format is "version.release.patchlevel" */ #define ASD_DRIVER_VERSION "1.0.3" +#define DRV_NAME "aic94xx" static int use_msi = 0; module_param_named(use_msi, use_msi, int, S_IRUGO); @@ -36,29 +37,11 @@ static int asd_scan_finished(struct Scsi_Host *, unsigned long); static void asd_scan_start(struct Scsi_Host *); static const struct scsi_host_template aic94xx_sht = { - .module = THIS_MODULE, - /* .name is initialized */ - .name = "aic94xx", - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, - .slave_configure = sas_slave_configure, + LIBSAS_SHT_BASE .scan_finished = asd_scan_finished, .scan_start = asd_scan_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, .can_queue = 1, - .this_id = -1, .sg_tablesize = SG_ALL, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, - .slave_alloc = sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .track_queue_depth = 1, }; -- cgit v1.2.3 From f1604214fdc7d449d008751c39d453dd9b52e65a Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:38 +0000 Subject: scsi: mvsas: Use LIBSAS_SHT_BASE Use standard template for scsi_host_template structure to reduce duplication. Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-6-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Reviewed-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/mvsas/mv_init.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 43ebb331e216..fb81d267c9cc 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -30,28 +30,11 @@ static const struct attribute_group *mvst_host_groups[]; #define SOC_SAS_NUM 2 static const struct scsi_host_template mvs_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, - .slave_configure = sas_slave_configure, + LIBSAS_SHT_BASE .scan_finished = mvs_scan_finished, .scan_start = mvs_scan_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, .can_queue = 1, - .this_id = -1, .sg_tablesize = SG_ALL, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, - .slave_alloc = sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif .shost_groups = mvst_host_groups, .track_queue_depth = 1, }; -- cgit v1.2.3 From 92a59bc85c118cd4d6212d57fdc53b15056370da Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 8 Mar 2024 11:43:39 +0000 Subject: scsi: isci: Use LIBSAS_SHT_BASE Use standard template for scsi_host_template structure to reduce duplication. Reviewed-by: Jason Yan Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240308114339.1340549-7-john.g.garry@oracle.com Reviewed-by: Igor Pylypiv Signed-off-by: Martin K. Petersen --- drivers/scsi/isci/init.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index c582a3932cea..2b29e8505987 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -150,31 +150,12 @@ static struct attribute *isci_host_attrs[] = { ATTRIBUTE_GROUPS(isci_host); static const struct scsi_host_template isci_sht = { - - .module = THIS_MODULE, - .name = DRV_NAME, - .proc_name = DRV_NAME, - .queuecommand = sas_queuecommand, - .dma_need_drain = ata_scsi_dma_need_drain, - .target_alloc = sas_target_alloc, - .slave_configure = sas_slave_configure, + LIBSAS_SHT_BASE .scan_finished = isci_host_scan_finished, .scan_start = isci_host_start, - .change_queue_depth = sas_change_queue_depth, - .bios_param = sas_bios_param, .can_queue = ISCI_CAN_QUEUE_VAL, - .this_id = -1, .sg_tablesize = SG_ALL, - .max_sectors = SCSI_DEFAULT_MAX_SECTORS, - .eh_abort_handler = sas_eh_abort_handler, - .eh_device_reset_handler = sas_eh_device_reset_handler, - .eh_target_reset_handler = sas_eh_target_reset_handler, - .slave_alloc = sas_slave_alloc, - .target_destroy = sas_target_destroy, - .ioctl = sas_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = sas_ioctl, -#endif + .eh_abort_handler = sas_eh_abort_handler, .shost_groups = isci_host_groups, .track_queue_depth = 1, }; -- cgit v1.2.3 From ddfd7f051f4e14959b893ac8ba7c081a0691197c Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Sat, 9 Mar 2024 10:10:59 +0200 Subject: scsi: ufs: core: Reuse device management locking code Group those 3 calls that repeat for every device management command into lock and unlock handlers. Reviewed-by: Bean Huo Reviewed-by: Bart Van Assche Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20240309081104.5006-2-avri.altman@wdc.com Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 69 ++++++++++++++++++++++------------------------- 1 file changed, 32 insertions(+), 37 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index e30fd125988d..cdd9a5100f85 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -3274,6 +3274,20 @@ retry: return err; } +static void ufshcd_dev_man_lock(struct ufs_hba *hba) +{ + ufshcd_hold(hba); + mutex_lock(&hba->dev_cmd.lock); + down_read(&hba->clk_scaling_lock); +} + +static void ufshcd_dev_man_unlock(struct ufs_hba *hba) +{ + up_read(&hba->clk_scaling_lock); + mutex_unlock(&hba->dev_cmd.lock); + ufshcd_release(hba); +} + /** * ufshcd_exec_dev_cmd - API for sending device management requests * @hba: UFS hba @@ -3296,8 +3310,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba, /* Protects use of hba->reserved_slot. */ lockdep_assert_held(&hba->dev_cmd.lock); - down_read(&hba->clk_scaling_lock); - lrbp = &hba->lrb[tag]; lrbp->cmd = NULL; err = ufshcd_compose_dev_cmd(hba, lrbp, cmd_type, tag); @@ -3314,7 +3326,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba, (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); out: - up_read(&hba->clk_scaling_lock); return err; } @@ -3385,8 +3396,8 @@ int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, BUG_ON(!hba); - ufshcd_hold(hba); - mutex_lock(&hba->dev_cmd.lock); + ufshcd_dev_man_lock(hba); + ufshcd_init_query(hba, &request, &response, opcode, idn, index, selector); @@ -3428,8 +3439,7 @@ int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, MASK_QUERY_UPIU_FLAG_LOC) & 0x1; out_unlock: - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + ufshcd_dev_man_unlock(hba); return err; } @@ -3459,9 +3469,8 @@ int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, return -EINVAL; } - ufshcd_hold(hba); + ufshcd_dev_man_lock(hba); - mutex_lock(&hba->dev_cmd.lock); ufshcd_init_query(hba, &request, &response, opcode, idn, index, selector); @@ -3491,8 +3500,7 @@ int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, *attr_val = be32_to_cpu(response->upiu_res.value); out_unlock: - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + ufshcd_dev_man_unlock(hba); return err; } @@ -3555,9 +3563,8 @@ static int __ufshcd_query_descriptor(struct ufs_hba *hba, return -EINVAL; } - ufshcd_hold(hba); + ufshcd_dev_man_lock(hba); - mutex_lock(&hba->dev_cmd.lock); ufshcd_init_query(hba, &request, &response, opcode, idn, index, selector); hba->dev_cmd.query.descriptor = desc_buf; @@ -3590,8 +3597,7 @@ static int __ufshcd_query_descriptor(struct ufs_hba *hba, out_unlock: hba->dev_cmd.query.descriptor = NULL; - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + ufshcd_dev_man_unlock(hba); return err; } @@ -5072,8 +5078,8 @@ static int ufshcd_verify_dev_init(struct ufs_hba *hba) int err = 0; int retries; - ufshcd_hold(hba); - mutex_lock(&hba->dev_cmd.lock); + ufshcd_dev_man_lock(hba); + for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_NOP, hba->nop_out_timeout); @@ -5083,8 +5089,8 @@ static int ufshcd_verify_dev_init(struct ufs_hba *hba) dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); } - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + + ufshcd_dev_man_unlock(hba); if (err) dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); @@ -7210,8 +7216,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba, /* Protects use of hba->reserved_slot. */ lockdep_assert_held(&hba->dev_cmd.lock); - down_read(&hba->clk_scaling_lock); - lrbp = &hba->lrb[tag]; lrbp->cmd = NULL; lrbp->task_tag = tag; @@ -7276,7 +7280,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba, ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP, (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); - up_read(&hba->clk_scaling_lock); return err; } @@ -7315,13 +7318,11 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba, cmd_type = DEV_CMD_TYPE_NOP; fallthrough; case UPIU_TRANSACTION_QUERY_REQ: - ufshcd_hold(hba); - mutex_lock(&hba->dev_cmd.lock); + ufshcd_dev_man_lock(hba); err = ufshcd_issue_devman_upiu_cmd(hba, req_upiu, rsp_upiu, desc_buff, buff_len, cmd_type, desc_op); - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + ufshcd_dev_man_unlock(hba); break; case UPIU_TRANSACTION_TASK_REQ: @@ -7381,9 +7382,7 @@ int ufshcd_advanced_rpmb_req_handler(struct ufs_hba *hba, struct utp_upiu_req *r u16 ehs_len; /* Protects use of hba->reserved_slot. */ - ufshcd_hold(hba); - mutex_lock(&hba->dev_cmd.lock); - down_read(&hba->clk_scaling_lock); + ufshcd_dev_man_lock(hba); lrbp = &hba->lrb[tag]; lrbp->cmd = NULL; @@ -7449,9 +7448,8 @@ int ufshcd_advanced_rpmb_req_handler(struct ufs_hba *hba, struct utp_upiu_req *r } } - up_read(&hba->clk_scaling_lock); - mutex_unlock(&hba->dev_cmd.lock); - ufshcd_release(hba); + ufshcd_dev_man_unlock(hba); + return err ? : result; } @@ -8714,9 +8712,7 @@ static void ufshcd_set_timestamp_attr(struct ufs_hba *hba) if (dev_info->wspecversion < 0x400) return; - ufshcd_hold(hba); - - mutex_lock(&hba->dev_cmd.lock); + ufshcd_dev_man_lock(hba); ufshcd_init_query(hba, &request, &response, UPIU_QUERY_OPCODE_WR