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scsi: pm8001: Initialize devices in pm8001_alloc_dev()
Devices can be allocated and freed at runtime. For example during a soft reset all devices are freed and reallocated upon discovery. Currently the driver fully initializes devices once in pm8001_alloc(). Allows initialization steps to happen during runtime, avoiding any leftover states from the device being freed. Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Terrence Adams <tadamsjr@google.com> Link: https://lore.kernel.org/r/20241021201828.1378858-1-tadamsjr@google.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -451,9 +451,6 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
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}
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for (i = 0; i < PM8001_MAX_DEVICES; i++) {
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pm8001_ha->devices[i].dev_type = SAS_PHY_UNUSED;
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pm8001_ha->devices[i].id = i;
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pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
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atomic_set(&pm8001_ha->devices[i].running_req, 0);
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}
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pm8001_ha->flags = PM8001F_INIT_TIME;
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return 0;
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@ -572,6 +572,13 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
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pm8001_ccb_free(pm8001_ha, ccb);
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}
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static void pm8001_init_dev(struct pm8001_device *pm8001_dev, int id)
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{
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pm8001_dev->id = id;
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pm8001_dev->device_id = PM8001_MAX_DEVICES;
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atomic_set(&pm8001_dev->running_req, 0);
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}
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/**
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* pm8001_alloc_dev - find a empty pm8001_device
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* @pm8001_ha: our hba card information
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@ -580,9 +587,11 @@ static struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha)
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{
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u32 dev;
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for (dev = 0; dev < PM8001_MAX_DEVICES; dev++) {
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if (pm8001_ha->devices[dev].dev_type == SAS_PHY_UNUSED) {
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pm8001_ha->devices[dev].id = dev;
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return &pm8001_ha->devices[dev];
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struct pm8001_device *pm8001_dev = &pm8001_ha->devices[dev];
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if (pm8001_dev->dev_type == SAS_PHY_UNUSED) {
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pm8001_init_dev(pm8001_dev, dev);
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return pm8001_dev;
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}
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}
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if (dev == PM8001_MAX_DEVICES) {
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@ -613,9 +622,7 @@ struct pm8001_device *pm8001_find_dev(struct pm8001_hba_info *pm8001_ha,
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void pm8001_free_dev(struct pm8001_device *pm8001_dev)
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{
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u32 id = pm8001_dev->id;
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memset(pm8001_dev, 0, sizeof(*pm8001_dev));
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pm8001_dev->id = id;
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pm8001_dev->dev_type = SAS_PHY_UNUSED;
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pm8001_dev->device_id = PM8001_MAX_DEVICES;
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pm8001_dev->sas_device = NULL;
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