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Date: Wed, 9 Mar 2022 17:15:27 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Manish Chopra <manishc@...vell.com>
Cc: kuba@...nel.org, netdev@...r.kernel.org, aelior@...vell.com,
palok@...vell.com, pkushwaha@...vell.com,
"David S. Miller" <davem@...emloft.net>,
Greg KH <gregkh@...uxfoundation.org>, stable@...r.kernel.org,
it+netdev@...gen.mpg.de, regressions@...mhuis.info,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v2 net-next 1/2] bnx2x: Utilize firmware 7.13.21.0
Dear Manish,
Am 17.12.21 um 17:55 schrieb Manish Chopra:
> This new firmware addresses few important issues and enhancements
> as mentioned below -
>
> - Support direct invalidation of FP HSI Ver per function ID, required for
> invalidating FP HSI Ver prior to each VF start, as there is no VF start
> - BRB hardware block parity error detection support for the driver
> - Fix the FCOE underrun flow
> - Fix PSOD during FCoE BFS over the NIC ports after preboot driver
> - Maintains backward compatibility
>
> This patch incorporates this new firmware 7.13.21.0 in bnx2x driver.
>
> Signed-off-by: Manish Chopra <manishc@...vell.com>
> Signed-off-by: Prabhakar Kushwaha <pkushwaha@...vell.com>
> Signed-off-by: Alok Prasad <palok@...vell.com>
> Signed-off-by: Ariel Elior <aelior@...vell.com>
> ---
>
> v1->v2:
> ------------
> * Modified the patch such that driver to be backward compatible
> with older firmware too (New fw v7.13.21.0 on linux-firmware.git
> enables driver to maintain backward compatibility)
> ---
> drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 11 +++-
> drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 6 +-
> .../net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h | 2 +
> drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h | 3 +-
> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 75 +++++++++++++++-------
> 5 files changed, 69 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> index 2b06d78b..a19dd67 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
> @@ -1850,6 +1850,14 @@ struct bnx2x {
>
> /* Vxlan/Geneve related information */
> u16 udp_tunnel_ports[BNX2X_UDP_PORT_MAX];
> +
> +#define FW_CAP_INVALIDATE_VF_FP_HSI BIT(0)
> + u32 fw_cap;
> +
> + u32 fw_major;
> + u32 fw_minor;
> + u32 fw_rev;
> + u32 fw_eng;
> };
>
> /* Tx queues may be less or equal to Rx queues */
> @@ -2525,5 +2533,6 @@ enum {
> * 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 54a2334..8d36ebb 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
> @@ -2365,10 +2365,8 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err)
> 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 = (BCM_5710_FW_MAJOR_VERSION) +
> - (BCM_5710_FW_MINOR_VERSION << 8) +
> - (BCM_5710_FW_REVISION_VERSION << 16) +
> - (BCM_5710_FW_ENGINEERING_VERSION << 24);
> + u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
> + (bp->fw_rev << 16) + (bp->fw_eng << 24);
>
> /* read loaded FW from chip */
> u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
> index 3f84352..a84d015 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
> @@ -241,6 +241,8 @@
> IRO[221].m2))
> #define XSTORM_VF_TO_PF_OFFSET(funcId) \
> (IRO[48].base + ((funcId) * IRO[48].m1))
> +#define XSTORM_ETH_FUNCTION_INFO_FP_HSI_VALID_E2_OFFSET(fid) \
> + (IRO[386].base + ((fid) * IRO[386].m1))
> #define COMMON_ASM_INVALID_ASSERT_OPCODE 0x0
>
> /* eth hsi version */
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
> index 622fadc..611efee 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
> @@ -3024,7 +3024,8 @@ struct afex_stats {
>
> #define BCM_5710_FW_MAJOR_VERSION 7
> #define BCM_5710_FW_MINOR_VERSION 13
> -#define BCM_5710_FW_REVISION_VERSION 15
> +#define BCM_5710_FW_REVISION_VERSION 21
> +#define BCM_5710_FW_REVISION_VERSION_V15 15
> #define BCM_5710_FW_ENGINEERING_VERSION 0
> #define BCM_5710_FW_COMPILE_FLAGS 1
>
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> index aec666e..125dafe 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> @@ -74,9 +74,19 @@
> __stringify(BCM_5710_FW_MINOR_VERSION) "." \
> __stringify(BCM_5710_FW_REVISION_VERSION) "." \
> __stringify(BCM_5710_FW_ENGINEERING_VERSION)
> +
> +#define FW_FILE_VERSION_V15 \
> + __stringify(BCM_5710_FW_MAJOR_VERSION) "." \
> + __stringify(BCM_5710_FW_MINOR_VERSION) "." \
> + __stringify(BCM_5710_FW_REVISION_VERSION_V15) "." \
> + __stringify(BCM_5710_FW_ENGINEERING_VERSION)
> +
> #define FW_FILE_NAME_E1 "bnx2x/bnx2x-e1-" FW_FILE_VERSION ".fw"
> #define FW_FILE_NAME_E1H "bnx2x/bnx2x-e1h-" FW_FILE_VERSION ".fw"
> #define FW_FILE_NAME_E2 "bnx2x/bnx2x-e2-" FW_FILE_VERSION ".fw"
> +#define FW_FILE_NAME_E1_V15 "bnx2x/bnx2x-e1-" FW_FILE_VERSION_V15 ".fw"
> +#define FW_FILE_NAME_E1H_V15 "bnx2x/bnx2x-e1h-" FW_FILE_VERSION_V15 ".fw"
> +#define FW_FILE_NAME_E2_V15 "bnx2x/bnx2x-e2-" FW_FILE_VERSION_V15 ".fw"
>
> /* Time in jiffies before concluding the transmitter is hung */
> #define TX_TIMEOUT (5*HZ)
> @@ -747,9 +757,7 @@ static int bnx2x_mc_assert(struct bnx2x *bp)
> CHIP_IS_E1(bp) ? "everest1" :
> CHIP_IS_E1H(bp) ? "everest1h" :
> CHIP_IS_E2(bp) ? "everest2" : "everest3",
> - BCM_5710_FW_MAJOR_VERSION,
> - BCM_5710_FW_MINOR_VERSION,
> - BCM_5710_FW_REVISION_VERSION);
> + bp->fw_major, bp->fw_minor, bp->fw_rev);
>
> return rc;
> }
> @@ -12308,6 +12316,15 @@ 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 */
> @@ -12320,6 +12337,7 @@ 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;
> }
> @@ -13317,16 +13335,11 @@ static int bnx2x_check_firmware(struct bnx2x *bp)
> /* Check FW version */
> offset = be32_to_cpu(fw_hdr->fw_version.offset);
> fw_ver = firmware->data + offset;
> - if ((fw_ver[0] != BCM_5710_FW_MAJOR_VERSION) ||
> - (fw_ver[1] != BCM_5710_FW_MINOR_VERSION) ||
> - (fw_ver[2] != BCM_5710_FW_REVISION_VERSION) ||
> - (fw_ver[3] != BCM_5710_FW_ENGINEERING_VERSION)) {
> + if (fw_ver[0] != bp->fw_major || fw_ver[1] != bp->fw_minor ||
> + fw_ver[2] != bp->fw_rev || fw_ver[3] != bp->fw_eng) {
> BNX2X_ERR("Bad FW version:%d.%d.%d.%d. Should be %d.%d.%d.%d\n",
> - fw_ver[0], fw_ver[1], fw_ver[2], fw_ver[3],
> - BCM_5710_FW_MAJOR_VERSION,
> - BCM_5710_FW_MINOR_VERSION,
> - BCM_5710_FW_REVISION_VERSION,
> - BCM_5710_FW_ENGINEERING_VERSION);
> + fw_ver[0], fw_ver[1], fw_ver[2], fw_ver[3],
> + bp->fw_major, bp->fw_minor, bp->fw_rev, bp->fw_eng);
> return -EINVAL;
> }
>
> @@ -13404,34 +13417,51 @@ static void be16_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
> (u8 *)bp->arr, len); \
> } while (0)
>
> -static int bnx2x_init_firmware(struct bnx2x *bp)
> +int bnx2x_init_firmware(struct bnx2x *bp)
> {
> - const char *fw_file_name;
> + const char *fw_file_name, *fw_file_name_v15;
> struct bnx2x_fw_file_hdr *fw_hdr;
> int rc;
>
> if (bp->firmware)
> return 0;
>
> - if (CHIP_IS_E1(bp))
> + if (CHIP_IS_E1(bp)) {
> fw_file_name = FW_FILE_NAME_E1;
> - else if (CHIP_IS_E1H(bp))
> + fw_file_name_v15 = FW_FILE_NAME_E1_V15;
> + } else if (CHIP_IS_E1H(bp)) {
> fw_file_name = FW_FILE_NAME_E1H;
> - else if (!CHIP_IS_E1x(bp))
> + fw_file_name_v15 = FW_FILE_NAME_E1H_V15;
> + } else if (!CHIP_IS_E1x(bp)) {
> fw_file_name = FW_FILE_NAME_E2;
> - else {
> + fw_file_name_v15 = FW_FILE_NAME_E2_V15;
> + } else {
> BNX2X_ERR("Unsupported chip revision\n");
> return -EINVAL;
> }
> +
> BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
>
> rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
> if (rc) {
> - BNX2X_ERR("Can't load firmware file %s\n",
> - fw_file_name);
> - goto request_firmware_exit;
> + BNX2X_DEV_INFO("Trying to load older fw %s\n", fw_file_name_v15);
> +
> + /* try to load prev version */
> + rc = request_firmware(&bp->firmware, fw_file_name_v15, &bp->pdev->dev);
> +
> + if (rc)
> + goto request_firmware_exit;
> +
> + bp->fw_rev = BCM_5710_FW_REVISION_VERSION_V15;
> + } else {
> + bp->fw_cap |= FW_CAP_INVALIDATE_VF_FP_HSI;
> + bp->fw_rev = BCM_5710_FW_REVISION_VERSION;
> }
>
> + bp->fw_major = BCM_5710_FW_MAJOR_VERSION;
> + bp->fw_minor = BCM_5710_FW_MINOR_VERSION;
> + bp->fw_eng = BCM_5710_FW_ENGINEERING_VERSION;
> +
> rc = bnx2x_check_firmware(bp);
> if (rc) {
> BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
> @@ -13487,7 +13517,7 @@ static int bnx2x_init_firmware(struct bnx2x *bp)
> return rc;
> }
>
> -static void bnx2x_release_firmware(struct bnx2x *bp)
> +void bnx2x_release_firmware(struct bnx2x *bp)
> {
> kfree(bp->init_ops_offsets);
> kfree(bp->init_ops);
> @@ -14004,6 +14034,7 @@ 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:
This change was added to Linux in commit b7a49f73059f (bnx2x: Utilize
firmware 7.13.21.0) [1] to Linux v5.17-rc1, and backported to the stable
series, for example, Linux v5.10.95.
Due to CVE-2022-0847 (Dirty Pipe) [1] we updated systems from, for
example, Linux 5.10.24 to Linux v5.10.103 and noticed that the Broadcom
network devices failed to initialize.
```
[ 20.477325] bnx2 0000:02:00.0 eth0: Broadcom NetXtreme II BCM5709
1000Base-T (C0) PCI Express found at mem c6000000, IRQ 41, node addr
c8:1f:66:cf:34:45
[ 20.491782] bnx2 0000:02:00.1 eth1: Broadcom NetXtreme II BCM5709
1000Base-T (C0) PCI Express found at mem c8000000, IRQ 42, node addr
c8:1f:66:cf:34:47
[ 20.506223] bnx2 0000:03:00.0 eth2: Broadcom NetXtreme II BCM5709
1000Base-T (C0) PCI Express found at mem ca000000, IRQ 43, node addr
c8:1f:66:cf:34:49
[ 20.520644] bnx2 0000:03:00.1 eth3: Broadcom NetXtreme II BCM5709
1000Base-T (C0) PCI Express found at mem cc000000, IRQ 44, node addr
c8:1f:66:cf:34:4b
[ 20.534985] bnx2x 0000:45:00.0: msix capability found
[ 20.540342] bnx2x 0000:45:00.0: part number
394D4342-31373735-31314131-473331
[ 20.548605] bnx2x 0000:45:00.0: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.21.0.fw failed with error -2
[ 20.558373] bnx2x 0000:45:00.0: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.15.0.fw failed with error -2
[ 20.568319] bnx2x: probe of 0000:45:00.0 failed with error -2
[ 20.574148] bnx2x 0000:45:00.1: msix capability found
[ 20.579470] bnx2x 0000:45:00.1: part number
394D4342-31373735-31314131-473331
[ 20.587708] bnx2x 0000:45:00.1: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.21.0.fw failed with error -2
[ 20.597479] bnx2x 0000:45:00.1: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.15.0.fw failed with error -2
[ 20.607355] bnx2x: probe of 0000:45:00.1 failed with error -2
[ 20.613179] bnx2x 0000:46:00.0: msix capability found
[ 20.618501] bnx2x 0000:46:00.0: part number
394D4342-31373735-31314131-473331
[ 20.626805] bnx2x 0000:46:00.0: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.21.0.fw failed with error -2
[ 20.636580] bnx2x 0000:46:00.0: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.15.0.fw failed with error -2
[ 20.646453] bnx2x: probe of 0000:46:00.0 failed with error -2
[ 20.652279] bnx2x 0000:46:00.1: msix capability found
[ 20.657593] bnx2x 0000:46:00.1: part number
394D4342-31373735-31314131-473331
[ 20.665813] bnx2x 0000:46:00.1: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.21.0.fw failed with error -2
[ 20.675590] bnx2x 0000:46:00.1: Direct firmware load for
bnx2x/bnx2x-e1h-7.13.15.0.fw failed with error -2
[ 20.685457] bnx2x: probe of 0000:46:00.1 failed with error -2
```
Due to reasons, we do not have firmware in the initrd, and the firmware
files are only the root partition in `/lib/firmware`.
Logging in using other means¹, and removing the PCI devices, and
rescanning brought the devices online.
$ echo 1 | sudo tee /sys/bus/pci/devices/0000\:{45,46}\:00.{0,1}/remove
$ echo 1 | sudo tee /sys/bus/pci/rescan
Adding the firmware files to the initrd also fixes the issue.
I didn’t bisect the change, but the refactoring of the init methods
looks like the reason for the change of behavior. As it’s not documented
in the commit message, was that intentional? I think it breaks Linux’ no
regression rule, and the commit (and follow-ups) should be reverted in
Linux v5.17 and backed out from the stable series.
Kind regards,
Paul
¹ Why can’t even without proper firmware, the card at least initialize
to have a network connection even if it’s degraded?
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