diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-08 10:12:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-08 10:12:46 -0700 |
commit | d1cd7c85f9e29740fddec6f25d8bf061937bf58d (patch) | |
tree | 6d1f8e555d3a416442856724b57dc414eac5d5a4 /drivers/scsi/ufs/ufs-hisi.c | |
parent | b3a5e648f5917ea508ecab9a629028b186d38eae (diff) | |
parent | d4023db71108375e4194e92730ba0d32d7f07813 (diff) |
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: qla2xxx, qedf, smartpqi,
hpsa, lpfc, ufs, mpt3sas, ibmvfc and hisi_sas. Plus number of minor
changes, spelling fixes and other trivia"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (298 commits)
scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session()
scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory
scsi: qla2xxx: Fix hardirq-unsafe locking
scsi: qla2xxx: Complain loudly about reference count underflow
scsi: qla2xxx: Use __le64 instead of uint32_t[2] for sending DMA addresses to firmware
scsi: qla2xxx: Introduce the dsd32 and dsd64 data structures
scsi: qla2xxx: Check the size of firmware data structures at compile time
scsi: qla2xxx: Pass little-endian values to the firmware
scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands
scsi: qla2xxx: Use an on-stack completion in qla24xx_control_vp()
scsi: qla2xxx: Make qla24xx_async_abort_cmd() static
scsi: qla2xxx: Remove unnecessary locking from the target code
scsi: qla2xxx: Remove qla_tgt_cmd.released
scsi: qla2xxx: Complain if a command is released that is owned by the firmware
scsi: qla2xxx: target: Fix offline port handling and host reset handling
scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending()
scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd()
scsi: qla2xxx: Simplify qlt_send_term_imm_notif()
scsi: qla2xxx: Fix use-after-free issues in qla2xxx_qpair_sp_free_dma()
scsi: qla2xxx: Fix a qla24xx_enable_msix() error path
...
Diffstat (limited to 'drivers/scsi/ufs/ufs-hisi.c')
-rw-r--r-- | drivers/scsi/ufs/ufs-hisi.c | 113 |
1 files changed, 8 insertions, 105 deletions
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c index 0e855b5afe82..7aed0a1a794e 100644 --- a/drivers/scsi/ufs/ufs-hisi.c +++ b/drivers/scsi/ufs/ufs-hisi.c @@ -293,108 +293,7 @@ static int ufs_hisi_link_startup_notify(struct ufs_hba *hba, return err; } -struct ufs_hisi_dev_params { - u32 pwm_rx_gear; /* pwm rx gear to work in */ - u32 pwm_tx_gear; /* pwm tx gear to work in */ - u32 hs_rx_gear; /* hs rx gear to work in */ - u32 hs_tx_gear; /* hs tx gear to work in */ - u32 rx_lanes; /* number of rx lanes */ - u32 tx_lanes; /* number of tx lanes */ - u32 rx_pwr_pwm; /* rx pwm working pwr */ - u32 tx_pwr_pwm; /* tx pwm working pwr */ - u32 rx_pwr_hs; /* rx hs working pwr */ - u32 tx_pwr_hs; /* tx hs working pwr */ - u32 hs_rate; /* rate A/B to work in HS */ - u32 desired_working_mode; -}; - -static int ufs_hisi_get_pwr_dev_param( - struct ufs_hisi_dev_params *hisi_param, - struct ufs_pa_layer_attr *dev_max, - struct ufs_pa_layer_attr *agreed_pwr) -{ - int min_hisi_gear; - int min_dev_gear; - bool is_dev_sup_hs = false; - bool is_hisi_max_hs = false; - - if (dev_max->pwr_rx == FASTAUTO_MODE || dev_max->pwr_rx == FAST_MODE) - is_dev_sup_hs = true; - - if (hisi_param->desired_working_mode == FAST) { - is_hisi_max_hs = true; - min_hisi_gear = min_t(u32, hisi_param->hs_rx_gear, - hisi_param->hs_tx_gear); - } else { - min_hisi_gear = min_t(u32, hisi_param->pwm_rx_gear, - hisi_param->pwm_tx_gear); - } - - /* - * device doesn't support HS but - * hisi_param->desired_working_mode is HS, - * thus device and hisi_param don't agree - */ - if (!is_dev_sup_hs && is_hisi_max_hs) { - pr_err("%s: device not support HS\n", __func__); - return -ENOTSUPP; - } else if (is_dev_sup_hs && is_hisi_max_hs) { - /* - * since device supports HS, it supports FAST_MODE. - * since hisi_param->desired_working_mode is also HS - * then final decision (FAST/FASTAUTO) is done according - * to hisi_params as it is the restricting factor - */ - agreed_pwr->pwr_rx = agreed_pwr->pwr_tx = - hisi_param->rx_pwr_hs; - } else { - /* - * here hisi_param->desired_working_mode is PWM. - * it doesn't matter whether device supports HS or PWM, - * in both cases hisi_param->desired_working_mode will - * determine the mode - */ - agreed_pwr->pwr_rx = agreed_pwr->pwr_tx = - hisi_param->rx_pwr_pwm; - } - - /* - * we would like tx to work in the minimum number of lanes - * between device capability and vendor preferences. - * the same decision will be made for rx - */ - agreed_pwr->lane_tx = - min_t(u32, dev_max->lane_tx, hisi_param->tx_lanes); - agreed_pwr->lane_rx = - min_t(u32, dev_max->lane_rx, hisi_param->rx_lanes); - - /* device maximum gear is the minimum between device rx and tx gears */ - min_dev_gear = min_t(u32, dev_max->gear_rx, dev_max->gear_tx); - - /* - * if both device capabilities and vendor pre-defined preferences are - * both HS or both PWM then set the minimum gear to be the chosen - * working gear. - * if one is PWM and one is HS then the one that is PWM get to decide - * what is the gear, as it is the one that also decided previously what - * pwr the device will be configured to. - */ - if ((is_dev_sup_hs && is_hisi_max_hs) || - (!is_dev_sup_hs && !is_hisi_max_hs)) - agreed_pwr->gear_rx = agreed_pwr->gear_tx = - min_t(u32, min_dev_gear, min_hisi_gear); - else - agreed_pwr->gear_rx = agreed_pwr->gear_tx = min_hisi_gear; - - agreed_pwr->hs_rate = hisi_param->hs_rate; - - pr_info("ufs final power mode: gear = %d, lane = %d, pwr = %d, rate = %d\n", - agreed_pwr->gear_rx, agreed_pwr->lane_rx, agreed_pwr->pwr_rx, - agreed_pwr->hs_rate); - return 0; -} - -static void ufs_hisi_set_dev_cap(struct ufs_hisi_dev_params *hisi_param) +static void ufs_hisi_set_dev_cap(struct ufs_dev_params *hisi_param) { hisi_param->rx_lanes = UFS_HISI_LIMIT_NUM_LANES_RX; hisi_param->tx_lanes = UFS_HISI_LIMIT_NUM_LANES_TX; @@ -477,7 +376,7 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_max_params, struct ufs_pa_layer_attr *dev_req_params) { - struct ufs_hisi_dev_params ufs_hisi_cap; + struct ufs_dev_params ufs_hisi_cap; int ret = 0; if (!dev_req_params) { @@ -490,8 +389,8 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, switch (status) { case PRE_CHANGE: ufs_hisi_set_dev_cap(&ufs_hisi_cap); - ret = ufs_hisi_get_pwr_dev_param( - &ufs_hisi_cap, dev_max_params, dev_req_params); + ret = ufshcd_get_pwr_dev_param(&ufs_hisi_cap, + dev_max_params, dev_req_params); if (ret) { dev_err(hba->dev, "%s: failed to determine capabilities\n", __func__); @@ -587,6 +486,10 @@ static int ufs_hisi_init_common(struct ufs_hba *hba) ufshcd_set_variant(hba, host); host->rst = devm_reset_control_get(dev, "rst"); + if (IS_ERR(host->rst)) { + dev_err(dev, "%s: failed to get reset control\n", __func__); + return PTR_ERR(host->rst); + } ufs_hisi_set_pm_lvl(hba); |