[RFC net] bnx2x: fix built-in kernel driver load failure

[RFC net] bnx2x: fix built-in kernel driver load failure

[Manish Chopra]

commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
added request_firmware() logic in probe() which caused
built-in kernel driver load failure as access to firmware
file is not feasible during the probe time.

This patch fixes this issue by -

1. Removing request_firmware() logic from the probe() such
   that open() handle it as it used to handle it earlier

2. Relaxing a bit FW version comparisons against the loaded FW
   (to allow many close/compatible FWs to run together now)

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
---

Note that this patch is just for test and get feedback
from Paul Menzel about the issue reported by him on built-in
driver probe failure due to firmware files not found

 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h   |  2 --
 .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   | 28 +++++++++++--------
 .../net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 15 ++--------
 3 files changed, 19 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index a19dd6797070..2209d99b3404 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2533,6 +2533,4 @@ void bnx2x_register_phc(struct bnx2x *bp);
  * Meant for implicit re-load flows.
  */
 int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp);
-int bnx2x_init_firmware(struct bnx2x *bp);
-void bnx2x_release_firmware(struct bnx2x *bp);
 #endif /* bnx2x.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 8d36ebbf08e1..5729a5ab059d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2364,24 +2364,30 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err)
 	/* is another pf loaded on this engine? */
 	if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
 	    load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
-		/* build my FW version dword */
-		u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
-				(bp->fw_rev << 16) + (bp->fw_eng << 24);
+		u8 loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng;
+		u32 loaded_fw;

 		/* read loaded FW from chip */
-		u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
+		loaded_fw = REG_RD(bp, XSEM_REG_PRAM);

-		DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n",
-		   loaded_fw, my_fw);
+		loaded_fw_major = loaded_fw & 0xff;
+		loaded_fw_minor = (loaded_fw >> 8) & 0xff;
+		loaded_fw_rev = (loaded_fw >> 16) & 0xff;
+		loaded_fw_eng = (loaded_fw >> 24) & 0xff;
+
+		DP(BNX2X_MSG_SP, "loaded fw 0x%x major 0x%x minor 0x%x rev 0x%x eng 0x%x\n",
+		   loaded_fw, loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng);

 		/* abort nic load if version mismatch */
-		if (my_fw != loaded_fw) {
+		if (loaded_fw_major != BCM_5710_FW_MAJOR_VERSION ||
+		    loaded_fw_minor != BCM_5710_FW_MINOR_VERSION ||
+		    loaded_fw_eng != BCM_5710_FW_ENGINEERING_VERSION ||
+		    loaded_fw_rev < BCM_5710_FW_REVISION_VERSION_V15) {
 			if (print_err)
-				BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n",
-					  loaded_fw, my_fw);
+				BNX2X_ERR("loaded FW incompatible. Aborting\n");
 			else
-				BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n",
-					       loaded_fw, my_fw);
+				BNX2X_DEV_INFO("loaded FW incompatible, possibly due to MF UNDI\n");
+
 			return -EBUSY;
 		}
 	}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index eedb48d945ed..c19b072f3a23 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12319,15 +12319,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)

 	bnx2x_read_fwinfo(bp);

-	if (IS_PF(bp)) {
-		rc = bnx2x_init_firmware(bp);
-
-		if (rc) {
-			bnx2x_free_mem_bp(bp);
-			return rc;
-		}
-	}
-
 	func = BP_FUNC(bp);

 	/* need to reset chip if undi was active */
@@ -12340,7 +12331,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)

 		rc = bnx2x_prev_unload(bp);
 		if (rc) {
-			bnx2x_release_firmware(bp);
 			bnx2x_free_mem_bp(bp);
 			return rc;
 		}
@@ -13409,7 +13399,7 @@ do {									\
 	     (u8 *)bp->arr, len);					\
 } while (0)

-int bnx2x_init_firmware(struct bnx2x *bp)
+static int bnx2x_init_firmware(struct bnx2x *bp)
 {
 	const char *fw_file_name, *fw_file_name_v15;
 	struct bnx2x_fw_file_hdr *fw_hdr;
@@ -13509,7 +13499,7 @@ int bnx2x_init_firmware(struct bnx2x *bp)
 	return rc;
 }

-void bnx2x_release_firmware(struct bnx2x *bp)
+static void bnx2x_release_firmware(struct bnx2x *bp)
 {
 	kfree(bp->init_ops_offsets);
 	kfree(bp->init_ops);
@@ -14026,7 +14016,6 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 	return 0;

 init_one_freemem:
-	bnx2x_release_firmware(bp);
 	bnx2x_free_mem_bp(bp);

 init_one_exit:
--
2.35.1.273.ge6ebfd0

Re: [RFC net] bnx2x: fix built-in kernel driver load failure

[Paul Menzel]

Dear Manish,


Thank you for the patch.

Am 16.03.22 um 12:18 schrieb Manish Chopra:
> commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
> added request_firmware() logic in probe() which caused
> built-in kernel driver load failure as access to firmware
> file is not feasible during the probe time.

… for example, when the initrd does not provide the firmware files.

Please also paste one example error message.

> This patch fixes this issue by -
> 
> 1. Removing request_firmware() logic from the probe() such
>     that open() handle it as it used to handle it earlier
> 
> 2. Relaxing a bit FW version comparisons against the loaded FW
>     (to allow many close/compatible FWs to run together now)

I’d prefer if you also pasted one error message, and even split this out 
into a separate commit with elaborate problem description.

Style note: For the commit message, it’d be great if you used 75 
characters per line.

> Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
> Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")

The regzbot also asks to add the tag below [1].

Link: 
https://lore.kernel.org/r/46f2d9d9-ae7f-b332-ddeb-b59802be2bab@molgen.mpg.de

> Signed-off-by: Manish Chopra <manishc@marvell.com>
> Signed-off-by: Ariel Elior <aelior@marvell.com>
> ---
> 
> Note that this patch is just for test and get feedback
> from Paul Menzel about the issue reported by him on built-in
> driver probe failure due to firmware files not found

Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>

Dell PowerEdge R910/0KYD3D, BIOS 2.10.0 08/29/2013 with patch on top of 
Linux 5.10.103 with 7.13.15.0 on the root partition:

$ lspci -nn -s 45:00.1
45:00.1 Ethernet controller [0200]: Broadcom Inc. and subsidiaries 
NetXtreme II BCM57711 10-Gigabit PCIe [14e4:164f]
$ ethtool -i net05
driver: bnx2x
version: 5.10.103.mx64.429-00016-g597b02
firmware-version: 7.8.16 bc 6.2.26 phy aa0.406
expansion-rom-version:
bus-info: 0000:45:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
```

>   drivers/net/ethernet/broadcom/bnx2x/bnx2x.h   |  2 --
>   .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   | 28 +++++++++++--------
>   .../net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 15 ++--------
>   3 files changed, 19 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> index a19dd6797070..2209d99b3404 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> @@ -2533,6 +2533,4 @@ void bnx2x_register_phc(struct bnx2x *bp);
>    * Meant for implicit re-load flows.
>    */
>   int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp);
> -int bnx2x_init_firmware(struct bnx2x *bp);
> -void bnx2x_release_firmware(struct bnx2x *bp);
>   #endif /* bnx2x.h */
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> index 8d36ebbf08e1..5729a5ab059d 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> @@ -2364,24 +2364,30 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err)
>   	/* is another pf loaded on this engine? */
>   	if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
>   	    load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
> -		/* build my FW version dword */
> -		u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
> -				(bp->fw_rev << 16) + (bp->fw_eng << 24);
> +		u8 loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng;
> +		u32 loaded_fw;
> 
>   		/* read loaded FW from chip */
> -		u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
> +		loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
> 
> -		DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n",
> -		   loaded_fw, my_fw);
> +		loaded_fw_major = loaded_fw & 0xff;
> +		loaded_fw_minor = (loaded_fw >> 8) & 0xff;
> +		loaded_fw_rev = (loaded_fw >> 16) & 0xff;
> +		loaded_fw_eng = (loaded_fw >> 24) & 0xff;
> +
> +		DP(BNX2X_MSG_SP, "loaded fw 0x%x major 0x%x minor 0x%x rev 0x%x eng 0x%x\n",
> +		   loaded_fw, loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng);

Hmm, with `CONFIG_BNX2X=y` and `bnx2x.debug=0x0100000`, bringing up 
net05 (.1) and then net04 (.0), I only see:

     [ 3333.883697] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw 
f0d07 major 7 minor d rev f eng 0

For another patch, but the currently loaded firmware, and when loading 
new firmware, the version of it, should also be logged by Linux (by 
default, and not with debug level).

Also copying the 7.13.21.0 firmware on the running system, bringing the 
interfaces down and up again, the newer firmware is not loaded, but it 
stays with the 7.13.15.0:

     [ 3533.374046] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw 
f0d07 major 7 minor d rev f eng 0

>   		/* abort nic load if version mismatch */
> -		if (my_fw != loaded_fw) {
> +		if (loaded_fw_major != BCM_5710_FW_MAJOR_VERSION ||
> +		    loaded_fw_minor != BCM_5710_FW_MINOR_VERSION ||
> +		    loaded_fw_eng != BCM_5710_FW_ENGINEERING_VERSION ||
> +		    loaded_fw_rev < BCM_5710_FW_REVISION_VERSION_V15) {
>   			if (print_err)
> -				BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n",
> -					  loaded_fw, my_fw);
> +				BNX2X_ERR("loaded FW incompatible. Aborting\n");
>   			else
> -				BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n",
> -					       loaded_fw, my_fw);
> +				BNX2X_DEV_INFO("loaded FW incompatible, possibly due to MF UNDI\n");
> +
>   			return -EBUSY;
>   		}
>   	}
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> index eedb48d945ed..c19b072f3a23 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> @@ -12319,15 +12319,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
> 
>   	bnx2x_read_fwinfo(bp);
> 
> -	if (IS_PF(bp)) {
> -		rc = bnx2x_init_firmware(bp);
> -
> -		if (rc) {
> -			bnx2x_free_mem_bp(bp);
> -			return rc;
> -		}
> -	}
> -
>   	func = BP_FUNC(bp);
> 
>   	/* need to reset chip if undi was active */
> @@ -12340,7 +12331,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
> 
>   		rc = bnx2x_prev_unload(bp);
>   		if (rc) {
> -			bnx2x_release_firmware(bp);
>   			bnx2x_free_mem_bp(bp);
>   			return rc;
>   		}
> @@ -13409,7 +13399,7 @@ do {									\
>   	     (u8 *)bp->arr, len);					\
>   } while (0)
> 
> -int bnx2x_init_firmware(struct bnx2x *bp)
> +static int bnx2x_init_firmware(struct bnx2x *bp)
>   {
>   	const char *fw_file_name, *fw_file_name_v15;
>   	struct bnx2x_fw_file_hdr *fw_hdr;
> @@ -13509,7 +13499,7 @@ int bnx2x_init_firmware(struct bnx2x *bp)
>   	return rc;
>   }
> 
> -void bnx2x_release_firmware(struct bnx2x *bp)
> +static void bnx2x_release_firmware(struct bnx2x *bp)
>   {
>   	kfree(bp->init_ops_offsets);
>   	kfree(bp->init_ops);
> @@ -14026,7 +14016,6 @@ static int bnx2x_init_one(struct pci_dev *pdev,
>   	return 0;
> 
>   init_one_freemem:
> -	bnx2x_release_firmware(bp);
>   	bnx2x_free_mem_bp(bp);
> 
>   init_one_exit:
> --
> 2.35.1.273.ge6ebfd0

So why was the earlier firmware version comparison needed in commit 
b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")?

I let the maintainers decide how to best go forward.


Kind regards,

Paul


[1]: https://linux-regtracking.leemhuis.info/regzbot/mainline/
      (click on the array to expand the information)

Re: [RFC net] bnx2x: fix built-in kernel driver load failure

[Paul Menzel]

Dear Manish,


Am 16.03.22 um 18:09 schrieb Paul Menzel:

> Thank you for the patch.
> 
> Am 16.03.22 um 12:18 schrieb Manish Chopra:
>> commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
>> added request_firmware() logic in probe() which caused
>> built-in kernel driver load failure as access to firmware
>> file is not feasible during the probe time.
> 
> … for example, when the initrd does not provide the firmware files.
> 
> Please also paste one example error message.
> 
>> This patch fixes this issue by -
>>
>> 1. Removing request_firmware() logic from the probe() such
>>     that open() handle it as it used to handle it earlier
>>
>> 2. Relaxing a bit FW version comparisons against the loaded FW
>>     (to allow many close/compatible FWs to run together now)
> 
> I’d prefer if you also pasted one error message, and even split this out 
> into a separate commit with elaborate problem description.
> 
> Style note: For the commit message, it’d be great if you used 75 
> characters per line.
> 
>> Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
>> Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
> 
> The regzbot also asks to add the tag below [1].
> 
> Link: 
> https://lore.kernel.org/r/46f2d9d9-ae7f-b332-ddeb-b59802be2bab@molgen.mpg.de 
> 
> 
>> Signed-off-by: Manish Chopra <manishc@marvell.com>
>> Signed-off-by: Ariel Elior <aelior@marvell.com>
>> ---
>>
>> Note that this patch is just for test and get feedback
>> from Paul Menzel about the issue reported by him on built-in
>> driver probe failure due to firmware files not found
> 
> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
> 
> Dell PowerEdge R910/0KYD3D, BIOS 2.10.0 08/29/2013 with patch on top of 
> Linux 5.10.103 with 7.13.15.0 on the root partition:
> 
> $ lspci -nn -s 45:00.1
> 45:00.1 Ethernet controller [0200]: Broadcom Inc. and subsidiaries 
> NetXtreme II BCM57711 10-Gigabit PCIe [14e4:164f]
> $ ethtool -i net05
> driver: bnx2x
> version: 5.10.103.mx64.429-00016-g597b02
> firmware-version: 7.8.16 bc 6.2.26 phy aa0.406
> expansion-rom-version:
> bus-info: 0000:45:00.1
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
> supports-priv-flags: yes
> ```
> 
>>   drivers/net/ethernet/broadcom/bnx2x/bnx2x.h   |  2 --
>>   .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   | 28 +++++++++++--------
>>   .../net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 15 ++--------
>>   3 files changed, 19 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h 
>> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
>> index a19dd6797070..2209d99b3404 100644
>> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
>> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
>> @@ -2533,6 +2533,4 @@ void bnx2x_register_phc(struct bnx2x *bp);
>>    * Meant for implicit re-load flows.
>>    */
>>   int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp);
>> -int bnx2x_init_firmware(struct bnx2x *bp);
>> -void bnx2x_release_firmware(struct bnx2x *bp);
>>   #endif /* bnx2x.h */
>> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c 
>> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
>> index 8d36ebbf08e1..5729a5ab059d 100644
>> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
>> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
>> @@ -2364,24 +2364,30 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 
>> load_code, bool print_err)
>>       /* is another pf loaded on this engine? */
>>       if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
>>           load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
>> -        /* build my FW version dword */
>> -        u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
>> -                (bp->fw_rev << 16) + (bp->fw_eng << 24);
>> +        u8 loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng;
>> +        u32 loaded_fw;
>>
>>           /* read loaded FW from chip */
>> -        u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
>> +        loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
>>
>> -        DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n",
>> -           loaded_fw, my_fw);
>> +        loaded_fw_major = loaded_fw & 0xff;
>> +        loaded_fw_minor = (loaded_fw >> 8) & 0xff;
>> +        loaded_fw_rev = (loaded_fw >> 16) & 0xff;
>> +        loaded_fw_eng = (loaded_fw >> 24) & 0xff;
>> +
>> +        DP(BNX2X_MSG_SP, "loaded fw 0x%x major 0x%x minor 0x%x rev 0x%x eng 0x%x\n",
>> +           loaded_fw, loaded_fw_major, loaded_fw_minor, loaded_fw_rev, loaded_fw_eng);
> 
> Hmm, with `CONFIG_BNX2X=y` and `bnx2x.debug=0x0100000`, bringing up 
> net05 (.1) and then net04 (.0), I only see:
> 
>      [ 3333.883697] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw f0d07 major 7 minor d rev f eng 0
> 
> For another patch, but the currently loaded firmware, and when loading 
> new firmware, the version of it, should also be logged by Linux (by 
> default, and not with debug level).
> 
> Also copying the 7.13.21.0 firmware on the running system, bringing the 
> interfaces down and up again, the newer firmware is not loaded, but it 
> stays with the 7.13.15.0:
> 
>      [ 3533.374046] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw f0d07 major 7 minor d rev f eng 0

Starting the system with 7.13.21.0 in `/lib/firmware` bringing up the 
partner port(?) of a device this message confirms that the newer 
firmware is loaded:

     [  919.466778] bnx2x: [bnx2x_compare_fw_ver:2378(net05)]loaded fw 
120d07 major 7 minor d rev 12 eng 0

>>           /* abort nic load if version mismatch */
>> -        if (my_fw != loaded_fw) {
>> +        if (loaded_fw_major != BCM_5710_FW_MAJOR_VERSION ||
>> +            loaded_fw_minor != BCM_5710_FW_MINOR_VERSION ||
>> +            loaded_fw_eng != BCM_5710_FW_ENGINEERING_VERSION ||
>> +            loaded_fw_rev < BCM_5710_FW_REVISION_VERSION_V15) {
>>               if (print_err)
>> -                BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n",
>> -                      loaded_fw, my_fw);
>> +                BNX2X_ERR("loaded FW incompatible. Aborting\n");
>>               else
>> -                BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n",
>> -                           loaded_fw, my_fw);
>> +                BNX2X_DEV_INFO("loaded FW incompatible, possibly due to MF UNDI\n");
>> +
>>               return -EBUSY;
>>           }
>>       }
>> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c 
>> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
>> index eedb48d945ed..c19b072f3a23 100644
>> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
>> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
>> @@ -12319,15 +12319,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
>>
>>       bnx2x_read_fwinfo(bp);
>>
>> -    if (IS_PF(bp)) {
>> -        rc = bnx2x_init_firmware(bp);
>> -
>> -        if (rc) {
>> -            bnx2x_free_mem_bp(bp);
>> -            return rc;
>> -        }
>> -    }
>> -
>>       func = BP_FUNC(bp);
>>
>>       /* need to reset chip if undi was active */
>> @@ -12340,7 +12331,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
>>
>>           rc = bnx2x_prev_unload(bp);
>>           if (rc) {
>> -            bnx2x_release_firmware(bp);
>>               bnx2x_free_mem_bp(bp);
>>               return rc;
>>           }
>> @@ -13409,7 +13399,7 @@ do {                                    \
>>            (u8 *)bp->arr, len);                    \
>>   } while (0)
>>
>> -int bnx2x_init_firmware(struct bnx2x *bp)
>> +static int bnx2x_init_firmware(struct bnx2x *bp)
>>   {
>>       const char *fw_file_name, *fw_file_name_v15;
>>       struct bnx2x_fw_file_hdr *fw_hdr;
>> @@ -13509,7 +13499,7 @@ int bnx2x_init_firmware(struct bnx2x *bp)
>>       return rc;
>>   }
>>
>> -void bnx2x_release_firmware(struct bnx2x *bp)
>> +static void bnx2x_release_firmware(struct bnx2x *bp)
>>   {
>>       kfree(bp->init_ops_offsets);
>>       kfree(bp->init_ops);
>> @@ -14026,7 +14016,6 @@ static int bnx2x_init_one(struct pci_dev *pdev,
>>       return 0;
>>
>>   init_one_freemem:
>> -    bnx2x_release_firmware(bp);
>>       bnx2x_free_mem_bp(bp);
>>
>>   init_one_exit:
>> -- 
>> 2.35.1.273.ge6ebfd0
> 
> So why was the earlier firmware version comparison needed in commit 
> b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")?
> 
> I let the maintainers decide how to best go forward.


Kind regards,

Paul


> [1]: https://linux-regtracking.leemhuis.info/regzbot/mainline/
>       (click on the array to expand the information)

Re: [RFC net] bnx2x: fix built-in kernel driver load failure

[Thorsten Leemhuis]

On 16.03.22 18:09, Paul Menzel wrote:
> Am 16.03.22 um 12:18 schrieb Manish Chopra:
>> Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
>> Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
> 
> The regzbot also asks to add the tag below [1].
> 
> Link:
> https://lore.kernel.org/r/46f2d9d9-ae7f-b332-ddeb-b59802be2bab@molgen.mpg.de

For the record: yes, regzbot needs them, but it something old. IOW:
developers should be setting them for years now and quite a few do so,
but some do not. The docs recently got changed to make this aspect
clearer. See 'Documentation/process/submitting-patches.rst' and
'Documentation/process/5.Posting.rst' for details:

https://www.kernel.org/doc/html/latest/process/submitting-patches.html
https://www.kernel.org/doc/html/latest/process/5.Posting.html

Ciao, Thorsten

RE: [RFC net] bnx2x: fix built-in kernel driver load failure

[Manish Chopra]

Hi Paul,

> -----Original Message-----
> From: Paul Menzel <pmenzel@molgen.mpg.de>
> Sent: Wednesday, March 16, 2022 10:40 PM
> To: Manish Chopra <manishc@marvell.com>
> Cc: buczek@molgen.mpg.de; kuba@kernel.org; netdev@vger.kernel.org; Ariel
> Elior <aelior@marvell.com>; it+netdev@molgen.mpg.de;
> regressions@lists.linux.dev
> Subject: Re: [RFC net] bnx2x: fix built-in kernel driver load failure
> 
> Dear Manish,
> 
> 
> Thank you for the patch.
> 
> Am 16.03.22 um 12:18 schrieb Manish Chopra:
> > commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0") added
> > request_firmware() logic in probe() which caused built-in kernel
> > driver load failure as access to firmware file is not feasible during
> > the probe time.
> 
> … for example, when the initrd does not provide the firmware files.
> 
> Please also paste one example error message.
> 
> > This patch fixes this issue by -
> >
> > 1. Removing request_firmware() logic from the probe() such
> >     that open() handle it as it used to handle it earlier
> >
> > 2. Relaxing a bit FW version comparisons against the loaded FW
> >     (to allow many close/compatible FWs to run together now)
> 
> I’d prefer if you also pasted one error message, and even split this out into a
> separate commit with elaborate problem description.

Both needs to go in same commit, as we had to relax the FW versions comparisons in probe now to have
request_firmware() in open(), as at the probe time we don't know which FW file driver will be working with.

> 
> Style note: For the commit message, it’d be great if you used 75 characters
> per line.
> 
> > Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
> > Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
> 
> The regzbot also asks to add the tag below [1].
> 
> Link:
> https://urldefense.proofpoint.com/v2/url?u=https-
> 3A__lore.kernel.org_r_46f2d9d9-2Dae7f-2Db332-2Dddeb-2Db59802be2bab-
> 40molgen.mpg.de&d=DwIDaQ&c=nKjWec2b6R0mOyPaz7xtfQ&r=HndLdONH
> 2rCgfn5wuOHYh1x9I-
> 8ZUgYJw5n1lg98JVY&m=Vmw_yGAK292FGGYP9HzkbSg7C3Nn9TJQ8vXwz2Ah
> Q-v8_d0NQO2ilbGEcDDZhaxy&s=__nSwZvf_xVM_EMA-
> 7PVSX3L3X7XS4Bhz330B_AkZEQ&e=
> 
> > Signed-off-by: Manish Chopra <manishc@marvell.com>
> > Signed-off-by: Ariel Elior <aelior@marvell.com>
> > ---
> >
> > Note that this patch is just for test and get feedback from Paul
> > Menzel about the issue reported by him on built-in driver probe
> > failure due to firmware files not found
> 
> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
> 
> Dell PowerEdge R910/0KYD3D, BIOS 2.10.0 08/29/2013 with patch on top of
> Linux 5.10.103 with 7.13.15.0 on the root partition:
> 
> $ lspci -nn -s 45:00.1
> 45:00.1 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme
> II BCM57711 10-Gigabit PCIe [14e4:164f] $ ethtool -i net05
> driver: bnx2x
> version: 5.10.103.mx64.429-00016-g597b02
> firmware-version: 7.8.16 bc 6.2.26 phy aa0.406
> expansion-rom-version:
> bus-info: 0000:45:00.1
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
> supports-priv-flags: yes
> ```
> 
> >   drivers/net/ethernet/broadcom/bnx2x/bnx2x.h   |  2 --
> >   .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   | 28 +++++++++++--------
> >   .../net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 15 ++--------
> >   3 files changed, 19 insertions(+), 26 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> > b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> > index a19dd6797070..2209d99b3404 100644
> > --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> > +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> > @@ -2533,6 +2533,4 @@ void bnx2x_register_phc(struct bnx2x *bp);
> >    * Meant for implicit re-load flows.
> >    */
> >   int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp); -int
> > bnx2x_init_firmware(struct bnx2x *bp); -void
> > bnx2x_release_firmware(struct bnx2x *bp);
> >   #endif /* bnx2x.h */
> > diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> > b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> > index 8d36ebbf08e1..5729a5ab059d 100644
> > --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> > +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> > @@ -2364,24 +2364,30 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp,
> u32 load_code, bool print_err)
> >   	/* is another pf loaded on this engine? */
> >   	if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
> >   	    load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
> > -		/* build my FW version dword */
> > -		u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
> > -				(bp->fw_rev << 16) + (bp->fw_eng << 24);
> > +		u8 loaded_fw_major, loaded_fw_minor, loaded_fw_rev,
> loaded_fw_eng;
> > +		u32 loaded_fw;
> >
> >   		/* read loaded FW from chip */
> > -		u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
> > +		loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
> >
> > -		DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n",
> > -		   loaded_fw, my_fw);
> > +		loaded_fw_major = loaded_fw & 0xff;
> > +		loaded_fw_minor = (loaded_fw >> 8) & 0xff;
> > +		loaded_fw_rev = (loaded_fw >> 16) & 0xff;
> > +		loaded_fw_eng = (loaded_fw >> 24) & 0xff;
> > +
> > +		DP(BNX2X_MSG_SP, "loaded fw 0x%x major 0x%x minor 0x%x
> rev 0x%x eng 0x%x\n",
> > +		   loaded_fw, loaded_fw_major, loaded_fw_minor,
> loaded_fw_rev,
> > +loaded_fw_eng);
> 
> Hmm, with `CONFIG_BNX2X=y` and `bnx2x.debug=0x0100000`, bringing up
> net05 (.1) and then net04 (.0), I only see:
> 
>      [ 3333.883697] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw
> f0d07 major 7 minor d rev f eng 0
> 

I think this print is not good probably  (that's why it is default disabled), it’s not really the firmware driver
is supposed to work with (it is something which was already loaded by any other PF somewhere or some residue from earlier loads),
driver is always going to work with the firmware it gets from request_firmware(). I suggest you to enable below prints
to know about which FW driver is going to work with. Perhaps, I will enable below default.

        BNX2X_DEV_INFO("Loading %s\n", fw_file_name);

        rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
        if (rc) {
                BNX2X_DEV_INFO("Trying to load older fw %s\n", fw_file_name_v15);

> For another patch, but the currently loaded firmware, and when loading new
> firmware, the version of it, should also be logged by Linux (by default, and not
> with debug level).
> 
> Also copying the 7.13.21.0 firmware on the running system, bringing the
> interfaces down and up again, the newer firmware is not loaded, but it stays
> with the 7.13.15.0:
> 
>      [ 3533.374046] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw
> f0d07 major 7 minor d rev f eng 0
> 
> >   		/* abort nic load if version mismatch */
> > -		if (my_fw != loaded_fw) {
> > +		if (loaded_fw_major != BCM_5710_FW_MAJOR_VERSION ||
> > +		    loaded_fw_minor != BCM_5710_FW_MINOR_VERSION ||
> > +		    loaded_fw_eng != BCM_5710_FW_ENGINEERING_VERSION
> ||
> > +		    loaded_fw_rev < BCM_5710_FW_REVISION_VERSION_V15)
> {
> >   			if (print_err)
> > -				BNX2X_ERR("bnx2x with FW %x was already
> loaded which mismatches my %x FW. Aborting\n",
> > -					  loaded_fw, my_fw);
> > +				BNX2X_ERR("loaded FW incompatible.
> Aborting\n");
> >   			else
> > -				BNX2X_DEV_INFO("bnx2x with FW %x was
> already loaded which mismatches my %x FW, possibly due to MF UNDI\n",
> > -					       loaded_fw, my_fw);
> > +				BNX2X_DEV_INFO("loaded FW incompatible,
> possibly due to MF
> > +UNDI\n");
> > +
> >   			return -EBUSY;
> >   		}
> >   	}
> > diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> > b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> > index eedb48d945ed..c19b072f3a23 100644
> > --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> > +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> > @@ -12319,15 +12319,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
> >
> >   	bnx2x_read_fwinfo(bp);
> >
> > -	if (IS_PF(bp)) {
> > -		rc = bnx2x_init_firmware(bp);
> > -
> > -		if (rc) {
> > -			bnx2x_free_mem_bp(bp);
> > -			return rc;
> > -		}
> > -	}
> > -
> >   	func = BP_FUNC(bp);
> >
> >   	/* need to reset chip if undi was active */ @@ -12340,7 +12331,6 @@
> > static int bnx2x_init_bp(struct bnx2x *bp)
> >
> >   		rc = bnx2x_prev_unload(bp);
> >   		if (rc) {
> > -			bnx2x_release_firmware(bp);
> >   			bnx2x_free_mem_bp(bp);
> >   			return rc;
> >   		}
> > @@ -13409,7 +13399,7 @@ do {
> 				\
> >   	     (u8 *)bp->arr, len);					\
> >   } while (0)
> >
> > -int bnx2x_init_firmware(struct bnx2x *bp)
> > +static int bnx2x_init_firmware(struct bnx2x *bp)
> >   {
> >   	const char *fw_file_name, *fw_file_name_v15;
> >   	struct bnx2x_fw_file_hdr *fw_hdr;
> > @@ -13509,7 +13499,7 @@ int bnx2x_init_firmware(struct bnx2x *bp)
> >   	return rc;
> >   }
> >
> > -void bnx2x_release_firmware(struct bnx2x *bp)
> > +static void bnx2x_release_firmware(struct bnx2x *bp)
> >   {
> >   	kfree(bp->init_ops_offsets);
> >   	kfree(bp->init_ops);
> > @@ -14026,7 +14016,6 @@ static int bnx2x_init_one(struct pci_dev *pdev,
> >   	return 0;
> >
> >   init_one_freemem:
> > -	bnx2x_release_firmware(bp);
> >   	bnx2x_free_mem_bp(bp);
> >
> >   init_one_exit:
> > --
> > 2.35.1.273.ge6ebfd0
> 
> So why was the earlier firmware version comparison needed in commit
> b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")?
> 

FW version comparison was always there (even before this commit). Earlier it used to compare fixed FW (7.13.15.0) against the already loaded FW,
Now that driver can work with different FW, so we have to be relaxed with a few compatible FW versions as we don't know which FW driver is going to
work through request_firmware(). The comparison against the already loaded_fw (maybe by any other/earlier PF on the device) is there to decide
for a given PF to come up or not with the FW it will be requesting through request_firmware() later in open().
[Just consider the scenario for multiple PFs running in different environments with different firmwares].

> I let the maintainers decide how to best go forward.
> 
> 
> Kind regards,
> 
> Paul
> 
> 
> [1]: https://urldefense.proofpoint.com/v2/url?u=https-3A__linux-
> 2Dregtracking.leemhuis.info_regzbot_mainline_&d=DwIDaQ&c=nKjWec2b6R
> 0mOyPaz7xtfQ&r=HndLdONH2rCgfn5wuOHYh1x9I-
> 8ZUgYJw5n1lg98JVY&m=Vmw_yGAK292FGGYP9HzkbSg7C3Nn9TJQ8vXwz2Ah
> Q-
> v8_d0NQO2ilbGEcDDZhaxy&s=zdaRoa2c6t8bnXBbqwYyQ8Dq7ewsnmMefHM
> oaejYuBU&e=
>       (click on the array to expand the information)

bnx2x: How to log the firmware version? (was: [RFC net] bnx2x: fix built-in kernel driver load failure)

[Paul Menzel]

Dear Manish,


Thank you for your answer.

Am 16.03.22 um 19:25 schrieb Manish Chopra:

>> -----Original Message-----
>> From: Paul Menzel <pmenzel@molgen.mpg.de>

[…]

>> Hmm, with `CONFIG_BNX2X=y` and `bnx2x.debug=0x0100000`, bringing up
>> net05 (.1) and then net04 (.0), I only see:
>>
>>       [ 3333.883697] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded fw f0d07 major 7 minor d rev f eng 0
> 
> I think this print is not good probably  (that's why it is default
> disabled), it’s not really the firmware driver is supposed to work
> with (it is something which was already loaded by any other PF
> somewhere or some residue from earlier loads),
Still interesting, when handling firmware files, and trying to wrap ones 
head around the different versions flying around.

> driver is always going to work with the firmware it gets from
> request_firmware(). I suggest you to enable below prints to know
> about which FW driver is going to work with. Perhaps, I will enable
> below default.
> 
>          BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
> 
>          rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
>          if (rc) {
>                  BNX2X_DEV_INFO("Trying to load older fw %s\n", fw_file_name_v15);

Indeed, after figuring out to enable `BNX2X_DEV_INFO()` by the probe 
flag 0x2 – so either `bnx2x.debug=0x2` or `ethtool -s net04 msglvl 0x2`, 
Linux logs:

     $ dmesg --level=info | grep bnx2x | tail -8
     [  242.987091] bnx2x 0000:45:00.1: fw_seq 0x0000003b
     [  242.994144] bnx2x 0000:45:00.1: drv_pulse 0x6404
     [  243.038239] bnx2x 0000:45:00.1: Loading bnx2x/bnx2x-e1h-7.13.21.0.fw
     [  243.356284] bnx2x 0000:45:00.1 net05: using MSI-X  IRQs: sp 57 
fp[0] 59 ... fp[7] 66
     [  571.774061] bnx2x 0000:45:00.0: fw_seq 0x0000003b
     [  571.781069] bnx2x 0000:45:00.0: drv_pulse 0x2149
     [  571.799963] bnx2x 0000:45:00.0: Loading bnx2x/bnx2x-e1h-7.13.21.0.fw
     [  571.811657] bnx2x 0000:45:00.0 net04: using MSI-X  IRQs: sp 46 
fp[0] 48 ... fp[7] 55
     $ dmesg --level=err | grep bnx2x
     [  571.979621] bnx2x 0000:45:00.0 net04: Warning: Unqualified SFP+ 
module detected, Port 0 from Intel Corp       part number AFBR-703SDZ-IN2

Maybe the firmware version could be added to the line with the MSI-X and 
IRQ info. Maybe also the old version on the device, which `ethtool -i 
net04` shows.

     $ ethtool -i net04 | grep firmware
     firmware-version: 7.8.16 bc 6.2.26 phy aa0.406

No idea, why ethtool does not show the loaded firmware.


Kind regards,

Paul

RE: [EXT] bnx2x: How to log the firmware version? (was: [RFC net] bnx2x: fix built-in kernel driver load failure)

[Manish Chopra]

> -----Original Message-----
> From: Paul Menzel <pmenzel@molgen.mpg.de>
> Sent: Thursday, March 17, 2022 2:06 AM
> To: Manish Chopra <manishc@marvell.com>
> Cc: Donald Buczek <buczek@molgen.mpg.de>; Jakub Kicinski
> <kuba@kernel.org>; netdev@vger.kernel.org; Ariel Elior
> <aelior@marvell.com>; it+netdev@molgen.mpg.de;
> regressions@lists.linux.dev
> Subject: [EXT] bnx2x: How to log the firmware version? (was: [RFC net] bnx2x:
> fix built-in kernel driver load failure)
> 
> External Email
> 
> ----------------------------------------------------------------------
> Dear Manish,
> 
> 
> Thank you for your answer.
> 
> Am 16.03.22 um 19:25 schrieb Manish Chopra:
> 
> >> -----Original Message-----
> >> From: Paul Menzel <pmenzel@molgen.mpg.de>
> 
> […]
> 
> >> Hmm, with `CONFIG_BNX2X=y` and `bnx2x.debug=0x0100000`, bringing up
> >> net05 (.1) and then net04 (.0), I only see:
> >>
> >>       [ 3333.883697] bnx2x: [bnx2x_compare_fw_ver:2378(net04)]loaded
> >> fw f0d07 major 7 minor d rev f eng 0
> >
> > I think this print is not good probably  (that's why it is default
> > disabled), it’s not really the firmware driver is supposed to work
> > with (it is something which was already loaded by any other PF
> > somewhere or some residue from earlier loads),
> Still interesting, when handling firmware files, and trying to wrap ones head
> around the different versions flying around.
> 
> > driver is always going to work with the firmware it gets from
> > request_firmware(). I suggest you to enable below prints to know about
> > which FW driver is going to work with. Perhaps, I will enable below
> > default.
> >
> >          BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
> >
> >          rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev-
> >dev);
> >          if (rc) {
> >                  BNX2X_DEV_INFO("Trying to load older fw %s\n",
> > fw_file_name_v15);
> 
> Indeed, after figuring out to enable `BNX2X_DEV_INFO()` by the probe flag 0x2
> – so either `bnx2x.debug=0x2` or `ethtool -s net04 msglvl 0x2`, Linux logs:
> 
>      $ dmesg --level=info | grep bnx2x | tail -8
>      [  242.987091] bnx2x 0000:45:00.1: fw_seq 0x0000003b
>      [  242.994144] bnx2x 0000:45:00.1: drv_pulse 0x6404
>      [  243.038239] bnx2x 0000:45:00.1: Loading bnx2x/bnx2x-e1h-7.13.21.0.fw
>      [  243.356284] bnx2x 0000:45:00.1 net05: using MSI-X  IRQs: sp 57 fp[0] 59
> ... fp[7] 66
>      [  571.774061] bnx2x 0000:45:00.0: fw_seq 0x0000003b
>      [  571.781069] bnx2x 0000:45:00.0: drv_pulse 0x2149
>      [  571.799963] bnx2x 0000:45:00.0: Loading bnx2x/bnx2x-e1h-7.13.21.0.fw
>      [  571.811657] bnx2x 0000:45:00.0 net04: using MSI-X  IRQs: sp 46 fp[0] 48
> ... fp[7] 55
>      $ dmesg --level=err | grep bnx2x
>      [  571.979621] bnx2x 0000:45:00.0 net04: Warning: Unqualified SFP+
> module detected, Port 0 from Intel Corp       part number AFBR-703SDZ-IN2
> 
> Maybe the firmware version could be added to the line with the MSI-X and
> IRQ info. Maybe also the old version on the device, which `ethtool -i net04`
> shows.
> 
>      $ ethtool -i net04 | grep firmware
>      firmware-version: 7.8.16 bc 6.2.26 phy aa0.406
> 
> No idea, why ethtool does not show the loaded firmware.

thanks Paul for your questions/suggestions and specially verification of the fix.
I would prefer to enable/adjust or add any new logs in a separate commit (just not to add many things in same commit)
The version you see in ethtool is actually a different firmware called as management firmware (MFW) running on the device.
May be we can check the feasibility of reporting both the FW versions (MFW and FW file version on the host) in ethtool.
Or perhaps MFW in system log and FW file version in ethtool.

Thanks.