diff mbox series

[V3,08/25] smartpqi: add support for long firmware version

Message ID 160763250690.26927.15055129460333690813.stgit@brunhilda
State Superseded
Headers show
Series smartpqi updates | expand

Commit Message

Don Brace Dec. 10, 2020, 8:35 p.m. UTC
From: Kevin Barnett <kevin.barnett@microchip.com>

* Add support for new "long" firmware version which requires
  minor driver changes to expose.

Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
---
 drivers/scsi/smartpqi/smartpqi.h      |   14 ++++++++---
 drivers/scsi/smartpqi/smartpqi_init.c |   42 ++++++++++++++++++++++++---------
 2 files changed, 40 insertions(+), 16 deletions(-)

Comments

Martin Wilck Jan. 7, 2021, 4:45 p.m. UTC | #1
On Thu, 2020-12-10 at 14:35 -0600, Don Brace wrote:
> From: Kevin Barnett <kevin.barnett@microchip.com>

> 

> * Add support for new "long" firmware version which requires

>   minor driver changes to expose.

> 

> Reviewed-by: Scott Benesh <scott.benesh@microchip.com>

> Reviewed-by: Scott Teel <scott.teel@microchip.com>

> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>

> Signed-off-by: Don Brace <don.brace@microchip.com>

> ---

>  drivers/scsi/smartpqi/smartpqi.h      |   14 ++++++++---

>  drivers/scsi/smartpqi/smartpqi_init.c |   42

> ++++++++++++++++++++++++---------

>  2 files changed, 40 insertions(+), 16 deletions(-)

> 

> diff --git a/drivers/scsi/smartpqi/smartpqi.h

> b/drivers/scsi/smartpqi/smartpqi.h

> index eb23c3cf59c0..f33244def944 100644

> --- a/drivers/scsi/smartpqi/smartpqi.h

> +++ b/drivers/scsi/smartpqi/smartpqi.h

> @@ -1227,7 +1227,7 @@ struct pqi_event {

>  struct pqi_ctrl_info {

>         unsigned int    ctrl_id;

>         struct pci_dev  *pci_dev;

> -       char            firmware_version[11];

> +       char            firmware_version[32];

>         char            serial_number[17];

>         char            model[17];

>         char            vendor[9];

> @@ -1405,7 +1405,7 @@ enum pqi_ctrl_mode {

>  struct bmic_identify_controller {

>         u8      configured_logical_drive_count;

>         __le32  configuration_signature;

> -       u8      firmware_version[4];

> +       u8      firmware_version_short[4];

>         u8      reserved[145];

>         __le16  extended_logical_unit_count;

>         u8      reserved1[34];

> @@ -1413,11 +1413,17 @@ struct bmic_identify_controller {

>         u8      reserved2[8];

>         u8      vendor_id[8];

>         u8      product_id[16];

> -       u8      reserved3[68];

> +       u8      reserved3[62];

> +       __le32  extra_controller_flags;

> +       u8      reserved4[2];

>         u8      controller_mode;

> -       u8      reserved4[32];

> +       u8      spare_part_number[32];

> +       u8      firmware_version_long[32];

>  };

>  

> +/* constants for extra_controller_flags field of

> bmic_identify_controller */

> +#define

> BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED    0x20000000

> +

>  struct bmic_sense_subsystem_info {

>         u8      reserved[44];

>         u8      ctrl_serial_number[16];

> diff --git a/drivers/scsi/smartpqi/smartpqi_init.c

> b/drivers/scsi/smartpqi/smartpqi_init.c

> index 419887aa8ff3..aa8b559e8907 100644

> --- a/drivers/scsi/smartpqi/smartpqi_init.c

> +++ b/drivers/scsi/smartpqi/smartpqi_init.c

> @@ -998,14 +998,12 @@ static void pqi_update_time_worker(struct

> work_struct *work)

>                 PQI_UPDATE_TIME_WORK_INTERVAL);

>  }

>  

> -static inline void pqi_schedule_update_time_worker(

> -       struct pqi_ctrl_info *ctrl_info)

> +static inline void pqi_schedule_update_time_worker(struct

> pqi_ctrl_info *ctrl_info)

>  {

>         schedule_delayed_work(&ctrl_info->update_time_work, 0);

>  }

>  

> -static inline void pqi_cancel_update_time_worker(

> -       struct pqi_ctrl_info *ctrl_info)

> +static inline void pqi_cancel_update_time_worker(struct

> pqi_ctrl_info *ctrl_info)

>  {

>         cancel_delayed_work_sync(&ctrl_info->update_time_work);

>  }

> @@ -7245,13 +7243,23 @@ static int

> pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)

>         if (rc)

>                 goto out;

>  

> -       memcpy(ctrl_info->firmware_version, identify-

> > firmware_version,

> -               sizeof(identify->firmware_version));

> -       ctrl_info->firmware_version[sizeof(identify-

> > firmware_version)] = '\0';

> -       snprintf(ctrl_info->firmware_version +

> -               strlen(ctrl_info->firmware_version),

> -               sizeof(ctrl_info->firmware_version),

> -               "-%u", get_unaligned_le16(&identify-

> > firmware_build_number));

> +       if (get_unaligned_le32(&identify->extra_controller_flags) &

> +               BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED)

> {

> +               memcpy(ctrl_info->firmware_version,

> +                       identify->firmware_version_long,

> +                       sizeof(identify->firmware_version_long));

> +       } else {

> +               memcpy(ctrl_info->firmware_version,

> +                       identify->firmware_version_short,

> +                       sizeof(identify->firmware_version_short));

> +               ctrl_info->firmware_version

> +                       [sizeof(identify->firmware_version_short)] =

> '\0';

> +               snprintf(ctrl_info->firmware_version +

> +                       strlen(ctrl_info->firmware_version),

> +                       sizeof(ctrl_info->firmware_version),


This looks wrong. I suppose a real overflow can't happen, but shouldn't
it rather be written like this?

snprintf(ctrl_info->firmware_version + 
 sizeof(identify->firmware_version_short),
 sizeof(ctrl_info->firmware_version) 
 - sizeof(identify->firmware_version_short), 
 "-u", ...)

> +                       "-%u",

> +                       get_unaligned_le16(&identify-

> > firmware_build_number));

> +       }

>  

>         memcpy(ctrl_info->model, identify->product_id,

>                 sizeof(identify->product_id));

> @@ -9607,13 +9615,23 @@ static void __attribute__((unused))

> verify_structures(void)

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 configuration_signature) != 1);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> -               firmware_version) != 5);

> +               firmware_version_short) != 5);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 extended_logical_unit_count) != 154);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 firmware_build_number) != 190);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               vendor_id) != 200);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               product_id) != 208);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               extra_controller_flags) != 286);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 controller_mode) != 292);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               spare_part_number) != 293);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               firmware_version_long) != 325);

>  

>         BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,

>                 phys_bay_in_box) != 115);

>
Don Brace Jan. 11, 2021, 10:25 p.m. UTC | #2
-----Original Message-----
From: Martin Wilck [mailto:mwilck@suse.com] 

Subject: Re: [PATCH V3 08/25] smartpqi: add support for long firmware version

> @@ -1405,7 +1405,7 @@ enum pqi_ctrl_mode {  struct 

> bmic_identify_controller {

>         u8      configured_logical_drive_count;

>         __le32  configuration_signature;

> -       u8      firmware_version[4];

> +       u8      firmware_version_short[4];

>         u8      reserved[145];

>         __le16  extended_logical_unit_count;

>         u8      reserved1[34];

> @@ -1413,11 +1413,17 @@ struct bmic_identify_controller {

>         u8      reserved2[8];

>         u8      vendor_id[8];

>         u8      product_id[16];

> -       u8      reserved3[68];

> +       u8      reserved3[62];

> +       __le32  extra_controller_flags;

> +       u8      reserved4[2];

>         u8      controller_mode;

> -       u8      reserved4[32];

> +       u8      spare_part_number[32];

> +       u8      firmware_version_long[32];

>  };

>

> --- a/drivers/scsi/smartpqi/smartpqi_init.c

> +++ b/drivers/scsi/smartpqi/smartpqi_init.c

> pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)

>         if (rc)

>                 goto out;

>

> +       if (get_unaligned_le32(&identify->extra_controller_flags) &

> +               BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED)

> {

> +               memcpy(ctrl_info->firmware_version,

> +                       identify->firmware_version_long,

> +                       sizeof(identify->firmware_version_long));

> +       } else {

> +               memcpy(ctrl_info->firmware_version,

> +                       identify->firmware_version_short,

> +                       sizeof(identify->firmware_version_short));

> +               ctrl_info->firmware_version

> +                       [sizeof(identify->firmware_version_short)] =

> '\0';

> +               snprintf(ctrl_info->firmware_version +

> +                       strlen(ctrl_info->firmware_version),

> +                       sizeof(ctrl_info->firmware_version),


This looks wrong. I suppose a real overflow can't happen, but shouldn't it rather be written like this?

snprintf(ctrl_info->firmware_version +
 sizeof(identify->firmware_version_short),
 sizeof(ctrl_info->firmware_version)
 - sizeof(identify->firmware_version_short),
 "-u", ...)

> +                       "-%u",

> +                       get_unaligned_le16(&identify-

> > firmware_build_number));



Don: Agreed. Updated. 
Thanks for your revew.
Don Brace Jan. 22, 2021, 8:01 p.m. UTC | #3
-----Original Message-----
From: Martin Wilck [mailto:mwilck@suse.com] 

Subject: Re: [PATCH V3 08/25] smartpqi: add support for long firmware version

> +               snprintf(ctrl_info->firmware_version +

> +                       strlen(ctrl_info->firmware_version),

> +                       sizeof(ctrl_info->firmware_version),


This looks wrong. I suppose a real overflow can't happen, but shouldn't it rather be written like this?

snprintf(ctrl_info->firmware_version +
 sizeof(identify->firmware_version_short),
 sizeof(ctrl_info->firmware_version)
 - sizeof(identify->firmware_version_short),
 "-u", ...)

Don: I updated the code to match your suggeston.
Thank-you for your review,
Don

> +                       "-%u",

> +                       get_unaligned_le16(&identify-

> > firmware_build_number));

> +       }

>

>         memcpy(ctrl_info->model, identify->product_id,

>                 sizeof(identify->product_id)); @@ -9607,13 +9615,23 @@ 

> static void __attribute__((unused))

> verify_structures(void)

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 configuration_signature) != 1);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> -               firmware_version) != 5);

> +               firmware_version_short) != 5);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 extended_logical_unit_count) != 154);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 firmware_build_number) != 190);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               vendor_id) != 200);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               product_id) != 208);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               extra_controller_flags) != 286);

>         BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

>                 controller_mode) != 292);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               spare_part_number) != 293);

> +       BUILD_BUG_ON(offsetof(struct bmic_identify_controller,

> +               firmware_version_long) != 325);

>

>         BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,

>                 phys_bay_in_box) != 115);

>
diff mbox series

Patch

diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index eb23c3cf59c0..f33244def944 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -1227,7 +1227,7 @@  struct pqi_event {
 struct pqi_ctrl_info {
 	unsigned int	ctrl_id;
 	struct pci_dev	*pci_dev;
-	char		firmware_version[11];
+	char		firmware_version[32];
 	char		serial_number[17];
 	char		model[17];
 	char		vendor[9];
@@ -1405,7 +1405,7 @@  enum pqi_ctrl_mode {
 struct bmic_identify_controller {
 	u8	configured_logical_drive_count;
 	__le32	configuration_signature;
-	u8	firmware_version[4];
+	u8	firmware_version_short[4];
 	u8	reserved[145];
 	__le16	extended_logical_unit_count;
 	u8	reserved1[34];
@@ -1413,11 +1413,17 @@  struct bmic_identify_controller {
 	u8	reserved2[8];
 	u8	vendor_id[8];
 	u8	product_id[16];
-	u8	reserved3[68];
+	u8	reserved3[62];
+	__le32	extra_controller_flags;
+	u8	reserved4[2];
 	u8	controller_mode;
-	u8	reserved4[32];
+	u8	spare_part_number[32];
+	u8	firmware_version_long[32];
 };
 
+/* constants for extra_controller_flags field of bmic_identify_controller */
+#define BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED	0x20000000
+
 struct bmic_sense_subsystem_info {
 	u8	reserved[44];
 	u8	ctrl_serial_number[16];
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 419887aa8ff3..aa8b559e8907 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -998,14 +998,12 @@  static void pqi_update_time_worker(struct work_struct *work)
 		PQI_UPDATE_TIME_WORK_INTERVAL);
 }
 
-static inline void pqi_schedule_update_time_worker(
-	struct pqi_ctrl_info *ctrl_info)
+static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info)
 {
 	schedule_delayed_work(&ctrl_info->update_time_work, 0);
 }
 
-static inline void pqi_cancel_update_time_worker(
-	struct pqi_ctrl_info *ctrl_info)
+static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info)
 {
 	cancel_delayed_work_sync(&ctrl_info->update_time_work);
 }
@@ -7245,13 +7243,23 @@  static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
 	if (rc)
 		goto out;
 
-	memcpy(ctrl_info->firmware_version, identify->firmware_version,
-		sizeof(identify->firmware_version));
-	ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0';
-	snprintf(ctrl_info->firmware_version +
-		strlen(ctrl_info->firmware_version),
-		sizeof(ctrl_info->firmware_version),
-		"-%u", get_unaligned_le16(&identify->firmware_build_number));
+	if (get_unaligned_le32(&identify->extra_controller_flags) &
+		BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
+		memcpy(ctrl_info->firmware_version,
+			identify->firmware_version_long,
+			sizeof(identify->firmware_version_long));
+	} else {
+		memcpy(ctrl_info->firmware_version,
+			identify->firmware_version_short,
+			sizeof(identify->firmware_version_short));
+		ctrl_info->firmware_version
+			[sizeof(identify->firmware_version_short)] = '\0';
+		snprintf(ctrl_info->firmware_version +
+			strlen(ctrl_info->firmware_version),
+			sizeof(ctrl_info->firmware_version),
+			"-%u",
+			get_unaligned_le16(&identify->firmware_build_number));
+	}
 
 	memcpy(ctrl_info->model, identify->product_id,
 		sizeof(identify->product_id));
@@ -9607,13 +9615,23 @@  static void __attribute__((unused)) verify_structures(void)
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		configuration_signature) != 1);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
-		firmware_version) != 5);
+		firmware_version_short) != 5);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		extended_logical_unit_count) != 154);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		firmware_build_number) != 190);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		vendor_id) != 200);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		product_id) != 208);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		extra_controller_flags) != 286);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		controller_mode) != 292);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		spare_part_number) != 293);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		firmware_version_long) != 325);
 
 	BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
 		phys_bay_in_box) != 115);