* [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs [not found] <CGME20210317033143epcms2p25b37bba2bb515c1ce85bf555656ca3f2@epcms2p2> @ 2021-03-17 3:31 ` Daejun Park 2021-03-18 5:48 ` Can Guo ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: Daejun Park @ 2021-03-17 3:31 UTC (permalink / raw) To: avri.altman, jejb, martin.petersen, asutoshd, stanley.chu, cang, bvanassche, huobean, linux-scsi, linux-kernel, ALIM AKHTAR, Daejun Park Cc: JinHwan Park, SEUNGUK SHIN, Sung-Jun Park, Jinyoung CHOI, BoRam Shin Unlike other query APIs in UFS, ufshcd_query_flag has a fixed selector as 0. This patch allows ufshcd_query_flag API to choose selector value by parameter. Signed-off-by: Daejun Park <daejun7.park@samsung.com> --- drivers/scsi/ufs/ufs-sysfs.c | 2 +- drivers/scsi/ufs/ufshcd.c | 29 +++++++++++++++++------------ drivers/scsi/ufs/ufshcd.h | 2 +- 3 files changed, 19 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index acc54f530f2d..606b058a3394 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -746,7 +746,7 @@ static ssize_t _name##_show(struct device *dev, \ index = ufshcd_wb_get_query_index(hba); \ pm_runtime_get_sync(hba->dev); \ ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \ - QUERY_FLAG_IDN##_uname, index, &flag); \ + QUERY_FLAG_IDN##_uname, index, &flag, 0); \ pm_runtime_put_sync(hba->dev); \ if (ret) { \ ret = -EINVAL; \ diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 8c0ff024231c..c2fd9c58d6b8 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2940,13 +2940,15 @@ static inline void ufshcd_init_query(struct ufs_hba *hba, } static int ufshcd_query_flag_retry(struct ufs_hba *hba, - enum query_opcode opcode, enum flag_idn idn, u8 index, bool *flag_res) + enum query_opcode opcode, enum flag_idn idn, u8 index, bool *flag_res, + u8 selector) { int ret; int retries; for (retries = 0; retries < QUERY_REQ_RETRIES; retries++) { - ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res); + ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res, + selector); if (ret) dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", @@ -2969,15 +2971,17 @@ static int ufshcd_query_flag_retry(struct ufs_hba *hba, * @idn: flag idn to access * @index: flag index to access * @flag_res: the flag value after the query request completes + * @selector: selector field * * Returns 0 for success, non-zero in case of failure */ int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, - enum flag_idn idn, u8 index, bool *flag_res) + enum flag_idn idn, u8 index, bool *flag_res, + u8 selector) { struct ufs_query_req *request = NULL; struct ufs_query_res *response = NULL; - int err, selector = 0; + int err; int timeout = QUERY_REQ_TIMEOUT; BUG_ON(!hba); @@ -4331,7 +4335,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba) ktime_t timeout; err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, - QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL); + QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL, 0); if (err) { dev_err(hba->dev, "%s setting fDeviceInit flag failed with error %d\n", @@ -4343,7 +4347,8 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba) timeout = ktime_add_ms(ktime_get(), FDEVICEINIT_COMPL_TIMEOUT); do { err = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, - QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res); + QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res, + 0); if (!flag_res) break; usleep_range(5000, 10000); @@ -5250,7 +5255,7 @@ static int ufshcd_enable_auto_bkops(struct ufs_hba *hba) goto out; err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, - QUERY_FLAG_IDN_BKOPS_EN, 0, NULL); + QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0); if (err) { dev_err(hba->dev, "%s: failed to enable bkops %d\n", __func__, err); @@ -5300,7 +5305,7 @@ static int ufshcd_disable_auto_bkops(struct ufs_hba *hba) } err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG, - QUERY_FLAG_IDN_BKOPS_EN, 0, NULL); + QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0); if (err) { dev_err(hba->dev, "%s: failed to disable bkops %d\n", __func__, err); @@ -5463,7 +5468,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable) index = ufshcd_wb_get_query_index(hba); ret = ufshcd_query_flag_retry(hba, opcode, - QUERY_FLAG_IDN_WB_EN, index, NULL); + QUERY_FLAG_IDN_WB_EN, index, NULL, 0); if (ret) { dev_err(hba->dev, "%s write booster %s failed %d\n", __func__, enable ? "enable" : "disable", ret); @@ -5490,7 +5495,7 @@ static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set) index = ufshcd_wb_get_query_index(hba); return ufshcd_query_flag_retry(hba, val, QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8, - index, NULL); + index, NULL, 0); } static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable) @@ -5511,7 +5516,7 @@ static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable) index = ufshcd_wb_get_query_index(hba); ret = ufshcd_query_flag_retry(hba, opcode, QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, index, - NULL); + NULL, 0); if (ret) { dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__, enable ? "enable" : "disable", ret); @@ -7751,7 +7756,7 @@ static int ufshcd_device_params_init(struct ufs_hba *hba) ufshcd_get_ref_clk_gating_wait(hba); if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG, - QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag)) + QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag, 0)) hba->dev_info.f_power_on_wp_en = flag; /* Probe maximum power mode co-supported by both UFS host and device */ diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 1af91661dc83..67a26b2be36f 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -1077,7 +1077,7 @@ int ufshcd_read_desc_param(struct ufs_hba *hba, int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, enum attr_idn idn, u8 index, u8 selector, u32 *attr_val); int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, - enum flag_idn idn, u8 index, bool *flag_res); + enum flag_idn idn, u8 index, bool *flag_res, u8 selector); void ufshcd_auto_hibern8_enable(struct ufs_hba *hba); void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit); -- 2.25.1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs 2021-03-17 3:31 ` [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs Daejun Park @ 2021-03-18 5:48 ` Can Guo 2021-03-19 2:25 ` Martin K. Petersen [not found] ` <CGME20210317033143epcms2p25b37bba2bb515c1ce85bf555656ca3f2@epcms2p5> 2 siblings, 0 replies; 4+ messages in thread From: Can Guo @ 2021-03-18 5:48 UTC (permalink / raw) To: daejun7.park Cc: avri.altman, jejb, martin.petersen, asutoshd, stanley.chu, bvanassche, huobean, linux-scsi, linux-kernel, ALIM AKHTAR, JinHwan Park, SEUNGUK SHIN, Sung-Jun Park, Jinyoung CHOI, BoRam Shin On 2021-03-17 11:31, Daejun Park wrote: > Unlike other query APIs in UFS, ufshcd_query_flag has a fixed selector > as 0. This patch allows ufshcd_query_flag API to choose selector value > by parameter. > > Signed-off-by: Daejun Park <daejun7.park@samsung.com> Reviewed-by: Can Guo <cang@codeaurora.org> > --- > drivers/scsi/ufs/ufs-sysfs.c | 2 +- > drivers/scsi/ufs/ufshcd.c | 29 +++++++++++++++++------------ > drivers/scsi/ufs/ufshcd.h | 2 +- > 3 files changed, 19 insertions(+), 14 deletions(-) > > diff --git a/drivers/scsi/ufs/ufs-sysfs.c > b/drivers/scsi/ufs/ufs-sysfs.c > index acc54f530f2d..606b058a3394 100644 > --- a/drivers/scsi/ufs/ufs-sysfs.c > +++ b/drivers/scsi/ufs/ufs-sysfs.c > @@ -746,7 +746,7 @@ static ssize_t _name##_show(struct device > *dev, \ > index = ufshcd_wb_get_query_index(hba); \ > pm_runtime_get_sync(hba->dev); \ > ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \ > - QUERY_FLAG_IDN##_uname, index, &flag); \ > + QUERY_FLAG_IDN##_uname, index, &flag, 0); \ > pm_runtime_put_sync(hba->dev); \ > if (ret) { \ > ret = -EINVAL; \ > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > index 8c0ff024231c..c2fd9c58d6b8 100644 > --- a/drivers/scsi/ufs/ufshcd.c > +++ b/drivers/scsi/ufs/ufshcd.c > @@ -2940,13 +2940,15 @@ static inline void ufshcd_init_query(struct > ufs_hba *hba, > } > > static int ufshcd_query_flag_retry(struct ufs_hba *hba, > - enum query_opcode opcode, enum flag_idn idn, u8 index, bool > *flag_res) > + enum query_opcode opcode, enum flag_idn idn, u8 index, bool > *flag_res, > + u8 selector) > { > int ret; > int retries; > > for (retries = 0; retries < QUERY_REQ_RETRIES; retries++) { > - ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res); > + ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res, > + selector); > if (ret) > dev_dbg(hba->dev, > "%s: failed with error %d, retries %d\n", > @@ -2969,15 +2971,17 @@ static int ufshcd_query_flag_retry(struct > ufs_hba *hba, > * @idn: flag idn to access > * @index: flag index to access > * @flag_res: the flag value after the query request completes > + * @selector: selector field > * > * Returns 0 for success, non-zero in case of failure > */ > int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, > - enum flag_idn idn, u8 index, bool *flag_res) > + enum flag_idn idn, u8 index, bool *flag_res, > + u8 selector) > { > struct ufs_query_req *request = NULL; > struct ufs_query_res *response = NULL; > - int err, selector = 0; > + int err; > int timeout = QUERY_REQ_TIMEOUT; > > BUG_ON(!hba); > @@ -4331,7 +4335,7 @@ static int ufshcd_complete_dev_init(struct > ufs_hba *hba) > ktime_t timeout; > > err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, > - QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL); > + QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL, 0); > if (err) { > dev_err(hba->dev, > "%s setting fDeviceInit flag failed with error %d\n", > @@ -4343,7 +4347,8 @@ static int ufshcd_complete_dev_init(struct > ufs_hba *hba) > timeout = ktime_add_ms(ktime_get(), FDEVICEINIT_COMPL_TIMEOUT); > do { > err = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, > - QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res); > + QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res, > + 0); > if (!flag_res) > break; > usleep_range(5000, 10000); > @@ -5250,7 +5255,7 @@ static int ufshcd_enable_auto_bkops(struct > ufs_hba *hba) > goto out; > > err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, > - QUERY_FLAG_IDN_BKOPS_EN, 0, NULL); > + QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0); > if (err) { > dev_err(hba->dev, "%s: failed to enable bkops %d\n", > __func__, err); > @@ -5300,7 +5305,7 @@ static int ufshcd_disable_auto_bkops(struct > ufs_hba *hba) > } > > err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG, > - QUERY_FLAG_IDN_BKOPS_EN, 0, NULL); > + QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0); > if (err) { > dev_err(hba->dev, "%s: failed to disable bkops %d\n", > __func__, err); > @@ -5463,7 +5468,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool > enable) > > index = ufshcd_wb_get_query_index(hba); > ret = ufshcd_query_flag_retry(hba, opcode, > - QUERY_FLAG_IDN_WB_EN, index, NULL); > + QUERY_FLAG_IDN_WB_EN, index, NULL, 0); > if (ret) { > dev_err(hba->dev, "%s write booster %s failed %d\n", > __func__, enable ? "enable" : "disable", ret); > @@ -5490,7 +5495,7 @@ static int > ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set) > index = ufshcd_wb_get_query_index(hba); > return ufshcd_query_flag_retry(hba, val, > QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8, > - index, NULL); > + index, NULL, 0); > } > > static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool > enable) > @@ -5511,7 +5516,7 @@ static inline int ufshcd_wb_toggle_flush(struct > ufs_hba *hba, bool enable) > index = ufshcd_wb_get_query_index(hba); > ret = ufshcd_query_flag_retry(hba, opcode, > QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, index, > - NULL); > + NULL, 0); > if (ret) { > dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__, > enable ? "enable" : "disable", ret); > @@ -7751,7 +7756,7 @@ static int ufshcd_device_params_init(struct > ufs_hba *hba) > ufshcd_get_ref_clk_gating_wait(hba); > > if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG, > - QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag)) > + QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag, 0)) > hba->dev_info.f_power_on_wp_en = flag; > > /* Probe maximum power mode co-supported by both UFS host and device > */ > diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h > index 1af91661dc83..67a26b2be36f 100644 > --- a/drivers/scsi/ufs/ufshcd.h > +++ b/drivers/scsi/ufs/ufshcd.h > @@ -1077,7 +1077,7 @@ int ufshcd_read_desc_param(struct ufs_hba *hba, > int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, > enum attr_idn idn, u8 index, u8 selector, u32 *attr_val); > int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, > - enum flag_idn idn, u8 index, bool *flag_res); > + enum flag_idn idn, u8 index, bool *flag_res, u8 selector); > > void ufshcd_auto_hibern8_enable(struct ufs_hba *hba); > void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit); ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs 2021-03-17 3:31 ` [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs Daejun Park 2021-03-18 5:48 ` Can Guo @ 2021-03-19 2:25 ` Martin K. Petersen [not found] ` <CGME20210317033143epcms2p25b37bba2bb515c1ce85bf555656ca3f2@epcms2p5> 2 siblings, 0 replies; 4+ messages in thread From: Martin K. Petersen @ 2021-03-19 2:25 UTC (permalink / raw) To: Daejun Park Cc: avri.altman, jejb, martin.petersen, asutoshd, stanley.chu, cang, bvanassche, huobean, linux-scsi, linux-kernel, ALIM AKHTAR, JinHwan Park, SEUNGUK SHIN, Sung-Jun Park, Jinyoung CHOI, BoRam Shin Daejun, > Unlike other query APIs in UFS, ufshcd_query_flag has a fixed selector > as 0. This patch allows ufshcd_query_flag API to choose selector value > by parameter. I don't see any users of the added parameter. Am I missing something? -- Martin K. Petersen Oracle Linux Engineering ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <CGME20210317033143epcms2p25b37bba2bb515c1ce85bf555656ca3f2@epcms2p5>]
* RE: Re: [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs [not found] ` <CGME20210317033143epcms2p25b37bba2bb515c1ce85bf555656ca3f2@epcms2p5> @ 2021-03-19 2:51 ` Daejun Park 0 siblings, 0 replies; 4+ messages in thread From: Daejun Park @ 2021-03-19 2:51 UTC (permalink / raw) To: Daejun Park Cc: avri.altman, jejb, martin.petersen, asutoshd, stanley.chu, cang, bvanassche, huobean, linux-scsi, linux-kernel, ALIM AKHTAR, JinHwan Park, SEUNGUK SHIN, Sung-Jun Park, Jinyoung CHOI, BoRam Shin Hi Martin > >Daejun, > >> Unlike other query APIs in UFS, ufshcd_query_flag has a fixed selector >> as 0. This patch allows ufshcd_query_flag API to choose selector value >> by parameter. > >I don't see any users of the added parameter. Am I missing something? The JEDEC standard describes it as follows: The selector field may be needed to further identify a particular element of a flag. Other cannot used it because it is fixed as zero in the API. Thanks, Daejun The selector field may be needed to further identify a particular element of a flag. Selector field is not 2218 used in this version of the standard and its value shall be zero. > >-- >Martin K. Petersen Oracle Linux Engineering > > > ^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-03-17 3:31 ` [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs Daejun Park
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2021-03-19 2:25 ` Martin K. Petersen
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2021-03-19 2:51 ` Daejun Park
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