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Message-ID: <CAGOxZ52AqtLW58wqtZj+RNGSAaE5f8ue4MSNgfzDEpznYH5+kw@mail.gmail.com>
Date: Sun, 19 Jan 2020 07:05:09 +0530
From: Alim Akhtar <alim.akhtar@...il.com>
To: Bean Huo <huobean@...il.com>
Cc: Alim Akhtar <alim.akhtar@...sung.com>,
Avri Altman <avri.altman@....com>, asutoshd@...eaurora.org,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Stanley Chu <stanley.chu@...iatek.com>,
"Bean Huo (beanhuo)" <beanhuo@...ron.com>,
Bart Van Assche <bvanassche@....org>,
Tomas Winkler <tomas.winkler@...el.com>,
Can Guo <cang@...eaurora.org>, linux-scsi@...r.kernel.org,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/8] scsi: ufs: Delete struct ufs_dev_desc
Hi Bean
On Sun, Jan 19, 2020 at 5:44 AM Bean Huo <huobean@...il.com> wrote:
>
> From: Bean Huo <beanhuo@...ron.com>
>
> In consideration of UFS host driver uses parameters of struct
> ufs_dev_desc, move its parameters to struct ufs_dev_info,
> delete struct ufs_dev_desc.
>
> Reviewed-by: Bart Van Assche <bvanassche@....org>
> Reviewed-by: Asutosh Das <asutoshd@...eaurora.org>
> Signed-off-by: Bean Huo <beanhuo@...ron.com>
> ---
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
> drivers/scsi/ufs/ufs-mediatek.c | 7 ++---
> drivers/scsi/ufs/ufs-qcom.c | 6 ++---
> drivers/scsi/ufs/ufs.h | 11 +-------
> drivers/scsi/ufs/ufs_quirks.h | 9 ++++---
> drivers/scsi/ufs/ufshcd.c | 47 +++++++++++++++------------------
> drivers/scsi/ufs/ufshcd.h | 7 +++--
> 6 files changed, 38 insertions(+), 49 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
> index 8d999c0e60fe..f8dd992b6f3a 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -406,10 +406,11 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
> return 0;
> }
>
> -static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba,
> - struct ufs_dev_desc *card)
> +static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
> {
> - if (card->wmanufacturerid == UFS_VENDOR_SAMSUNG)
> + struct ufs_dev_info *dev_info = hba->dev_info;
> +
> + if (dev_info->wmanufacturerid == UFS_VENDOR_SAMSUNG)
> ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);
>
> return 0;
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index ebb5c66e069f..9c6a182b3ed9 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -949,12 +949,12 @@ static int ufs_qcom_quirk_host_pa_saveconfigtime(struct ufs_hba *hba)
> return err;
> }
>
> -static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba,
> - struct ufs_dev_desc *card)
> +static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
> {
> int err = 0;
> + struct ufs_dev_info *dev_info = hba->dev_info;
>
> - if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
> + if (dev_info->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
> err = ufs_qcom_quirk_host_pa_saveconfigtime(hba);
>
> return err;
> diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
> index c89f21698629..fcc9b4d4e56f 100644
> --- a/drivers/scsi/ufs/ufs.h
> +++ b/drivers/scsi/ufs/ufs.h
> @@ -530,17 +530,8 @@ struct ufs_dev_info {
> bool f_power_on_wp_en;
> /* Keeps information if any of the LU is power on write protected */
> bool is_lu_power_on_wp;
> -};
> -
> -#define MAX_MODEL_LEN 16
> -/**
> - * ufs_dev_desc - ufs device details from the device descriptor
> - *
> - * @wmanufacturerid: card details
> - * @model: card model
> - */
> -struct ufs_dev_desc {
> u16 wmanufacturerid;
> + /*UFS device Product Name */
> u8 *model;
> };
>
> diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
> index fe6cad9b2a0d..d0ab147f98d3 100644
> --- a/drivers/scsi/ufs/ufs_quirks.h
> +++ b/drivers/scsi/ufs/ufs_quirks.h
> @@ -22,16 +22,17 @@
> * @quirk: device quirk
> */
> struct ufs_dev_fix {
> - struct ufs_dev_desc card;
> + u16 wmanufacturerid;
> + u8 *model;
> unsigned int quirk;
> };
>
> -#define END_FIX { { 0 }, 0 }
> +#define END_FIX { }
>
> /* add specific device quirk */
> #define UFS_FIX(_vendor, _model, _quirk) { \
> - .card.wmanufacturerid = (_vendor),\
> - .card.model = (_model), \
> + .wmanufacturerid = (_vendor),\
> + .model = (_model), \
> .quirk = (_quirk), \
> }
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 9a9085a7bcc5..58ef45b80cb0 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -6583,16 +6583,13 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
> return ret;
> }
>
> -static int ufs_get_device_desc(struct ufs_hba *hba,
> - struct ufs_dev_desc *dev_desc)
> +static int ufs_get_device_desc(struct ufs_hba *hba)
> {
> int err;
> size_t buff_len;
> u8 model_index;
> u8 *desc_buf;
> -
> - if (!dev_desc)
> - return -EINVAL;
> + struct ufs_dev_info *dev_info = &hba->dev_info;
>
> buff_len = max_t(size_t, hba->desc_size.dev_desc,
> QUERY_DESC_MAX_SIZE + 1);
> @@ -6613,12 +6610,12 @@ static int ufs_get_device_desc(struct ufs_hba *hba,
> * getting vendor (manufacturerID) and Bank Index in big endian
> * format
> */
> - dev_desc->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 |
> + dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 |
> desc_buf[DEVICE_DESC_PARAM_MANF_ID + 1];
>
> model_index = desc_buf[DEVICE_DESC_PARAM_PRDCT_NAME];
> err = ufshcd_read_string_desc(hba, model_index,
> - &dev_desc->model, SD_ASCII_STD);
> + &dev_info->model, SD_ASCII_STD);
> if (err < 0) {
> dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n",
> __func__, err);
> @@ -6636,23 +6633,25 @@ static int ufs_get_device_desc(struct ufs_hba *hba,
> return err;
> }
>
> -static void ufs_put_device_desc(struct ufs_dev_desc *dev_desc)
> +static void ufs_put_device_desc(struct ufs_hba *hba)
> {
> - kfree(dev_desc->model);
> - dev_desc->model = NULL;
> + struct ufs_dev_info *dev_info = &hba->dev_info;
> +
> + kfree(dev_info->model);
> + dev_info->model = NULL;
> }
>
> -static void ufs_fixup_device_setup(struct ufs_hba *hba,
> - struct ufs_dev_desc *dev_desc)
> +static void ufs_fixup_device_setup(struct ufs_hba *hba)
> {
> struct ufs_dev_fix *f;
> + struct ufs_dev_info *dev_info = &hba->dev_info;
>
> for (f = ufs_fixups; f->quirk; f++) {
> - if ((f->card.wmanufacturerid == dev_desc->wmanufacturerid ||
> - f->card.wmanufacturerid == UFS_ANY_VENDOR) &&
> - ((dev_desc->model &&
> - STR_PRFX_EQUAL(f->card.model, dev_desc->model)) ||
> - !strcmp(f->card.model, UFS_ANY_MODEL)))
> + if ((f->wmanufacturerid == dev_info->wmanufacturerid ||
> + f->wmanufacturerid == UFS_ANY_VENDOR) &&
> + ((dev_info->model &&
> + STR_PRFX_EQUAL(f->model, dev_info->model)) ||
> + !strcmp(f->model, UFS_ANY_MODEL)))
> hba->dev_quirks |= f->quirk;
> }
> }
> @@ -6804,8 +6803,7 @@ static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba)
> return ret;
> }
>
> -static void ufshcd_tune_unipro_params(struct ufs_hba *hba,
> - struct ufs_dev_desc *card)
> +static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
> {
> if (ufshcd_is_unipro_pa_params_tuning_req(hba)) {
> ufshcd_tune_pa_tactivate(hba);
> @@ -6819,7 +6817,7 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba,
> if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE)
> ufshcd_quirk_tune_host_pa_tactivate(hba);
>
> - ufshcd_vops_apply_dev_quirks(hba, card);
> + ufshcd_vops_apply_dev_quirks(hba);
> }
>
> static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
> @@ -6945,7 +6943,6 @@ static int ufshcd_set_dev_ref_clk(struct ufs_hba *hba)
> */
> static int ufshcd_probe_hba(struct ufs_hba *hba)
> {
> - struct ufs_dev_desc card = {0};
> int ret;
> ktime_t start = ktime_get();
>
> @@ -6974,16 +6971,15 @@ static int ufshcd_probe_hba(struct ufs_hba *hba)
> /* Init check for device descriptor sizes */
> ufshcd_init_desc_sizes(hba);
>
> - ret = ufs_get_device_desc(hba, &card);
> + ret = ufs_get_device_desc(hba);
> if (ret) {
> dev_err(hba->dev, "%s: Failed getting device info. err = %d\n",
> __func__, ret);
> goto out;
> }
>
> - ufs_fixup_device_setup(hba, &card);
> - ufshcd_tune_unipro_params(hba, &card);
> - ufs_put_device_desc(&card);
> + ufs_fixup_device_setup(hba);
> + ufshcd_tune_unipro_params(hba);
>
> /* UFS device is also active now */
> ufshcd_set_ufs_dev_active(hba);
> @@ -7544,6 +7540,7 @@ static void ufshcd_hba_exit(struct ufs_hba *hba)
> ufshcd_setup_clocks(hba, false);
> ufshcd_setup_hba_vreg(hba, false);
> hba->is_powered = false;
> + ufs_put_device_desc(hba);
> }
> }
>
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index b1a1c65be8b1..32b6714f25a5 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -320,7 +320,7 @@ struct ufs_hba_variant_ops {
> void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
> void (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
> enum ufs_notify_change_status);
> - int (*apply_dev_quirks)(struct ufs_hba *, struct ufs_dev_desc *);
> + int (*apply_dev_quirks)(struct ufs_hba *hba);
> int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
> int (*resume)(struct ufs_hba *, enum ufs_pm_op);
> void (*dbg_register_dump)(struct ufs_hba *hba);
> @@ -1054,11 +1054,10 @@ static inline void ufshcd_vops_hibern8_notify(struct ufs_hba *hba,
> return hba->vops->hibern8_notify(hba, cmd, status);
> }
>
> -static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba,
> - struct ufs_dev_desc *card)
> +static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba)
> {
> if (hba->vops && hba->vops->apply_dev_quirks)
> - return hba->vops->apply_dev_quirks(hba, card);
> + return hba->vops->apply_dev_quirks(hba);
> return 0;
> }
>
> --
> 2.17.1
>
--
Regards,
Alim
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