diff mbox series

[net-next,09/15] net/mlx5: Add device cap for supporting hot reset in sync reset flow

Message ID 20240911201757.1505453-10-saeed@kernel.org (mailing list archive)
State Accepted
Commit 9947204cdad97d22d171039019a4aad4d6899cdd
Delegated to: Netdev Maintainers
Headers show
Series [net-next,01/15] net/mlx5: HWS, updated API functions comments to kernel doc | expand

Checks

Context Check Description
netdev/series_format success Pull request is its own cover letter
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 16 this patch: 16
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 1 of 1 maintainers
netdev/build_clang success Errors and warnings before: 16 this patch: 16
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 19 this patch: 19
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 29 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-09-12--00-00 (tests: 764)

Commit Message

Saeed Mahameed Sept. 11, 2024, 8:17 p.m. UTC 
From: Moshe Shemesh <moshe@nvidia.com>

New devices with new FW can support sync reset for firmware activate
using hot reset. Add capability for supporting it and add MFRL field to
query from FW which type of PCI reset method to use while handling sync
reset events.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 include/linux/mlx5/mlx5_ifc.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

Comments

Jacob Keller Sept. 12, 2024, 7:11 p.m. UTC | #1 
On 9/11/2024 1:17 PM, Saeed Mahameed wrote:
> From: Moshe Shemesh <moshe@nvidia.com>
> 
> New devices with new FW can support sync reset for firmware activate
> using hot reset. Add capability for supporting it and add MFRL field to
> query from FW which type of PCI reset method to use while handling sync
> reset events.
> 
> Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
> ---
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
diff mbox series

Patch

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index b6f8e3834bd3..542da2b066d1 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1855,7 +1855,8 @@  struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         reserved_at_328[0x2];
 	u8	   relaxed_ordering_read[0x1];
 	u8         log_max_pd[0x5];
-	u8         reserved_at_330[0x6];
+	u8         reserved_at_330[0x5];
+	u8         pcie_reset_using_hotreset_method[0x1];
 	u8         pci_sync_for_fw_update_with_driver_unload[0x1];
 	u8         vnic_env_cnt_steering_fail[0x1];
 	u8         vport_counter_local_loopback[0x1];
@@ -11180,6 +11181,11 @@  struct mlx5_ifc_mcda_reg_bits {
 	u8         data[][0x20];
 };
 
+enum {
+	MLX5_MFRL_REG_PCI_RESET_METHOD_LINK_TOGGLE = 0,
+	MLX5_MFRL_REG_PCI_RESET_METHOD_HOT_RESET = 1,
+};
+
 enum {
 	MLX5_MFRL_REG_RESET_STATE_IDLE = 0,
 	MLX5_MFRL_REG_RESET_STATE_IN_NEGOTIATION = 1,
@@ -11207,7 +11213,8 @@  struct mlx5_ifc_mfrl_reg_bits {
 	u8         pci_sync_for_fw_update_start[0x1];
 	u8         pci_sync_for_fw_update_resp[0x2];
 	u8         rst_type_sel[0x3];
-	u8         reserved_at_28[0x4];
+	u8         pci_reset_req_method[0x3];
+	u8         reserved_at_2b[0x1];
 	u8         reset_state[0x4];
 	u8         reset_type[0x8];
 	u8         reset_level[0x8];