diff mbox series

[net-next,v2,01/13] nsp: generate nsp command with variable nsp major version

Message ID 20230816143912.34540-2-louis.peens@corigine.com (mailing list archive)
State Deferred
Delegated to: Netdev Maintainers
Headers show
Series nfp: add support for multi-pf configuration | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
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: 1330 this patch: 1330
netdev/cc_maintainers warning 3 maintainers not CCed: edumazet@google.com niklas.soderlund@corigine.com yu.xiao@corigine.com
netdev/build_clang success Errors and warnings before: 1353 this patch: 1353
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: 1353 this patch: 1353
netdev/checkpatch warning WARNING: line length of 84 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Louis Peens Aug. 16, 2023, 2:39 p.m. UTC 
From: Tianyu Yuan <tianyu.yuan@corigine.com>

The most significant 4 bits of nsp command code should carry the
ABI major version so that nsp command can be responded correctly.
It is working well since current major version is 0.

However management firmware is going to bump the major version to
support multi-PF feature. So change the code to explicitly contain
the major version into nsp command code.

Signed-off-by: Tianyu Yuan <tianyu.yuan@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
---
 drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
index 7136bc48530b..ee934663c6d9 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
@@ -37,7 +37,8 @@ 
 
 #define NSP_COMMAND		0x08
 #define   NSP_COMMAND_OPTION	GENMASK_ULL(63, 32)
-#define   NSP_COMMAND_CODE	GENMASK_ULL(31, 16)
+#define   NSP_COMMAND_CODE_MJ_VER	GENMASK_ULL(31, 28)
+#define   NSP_COMMAND_CODE	GENMASK_ULL(27, 16)
 #define   NSP_COMMAND_DMA_BUF	BIT_ULL(1)
 #define   NSP_COMMAND_START	BIT_ULL(0)
 
@@ -380,6 +381,7 @@  __nfp_nsp_command(struct nfp_nsp *state, const struct nfp_nsp_command_arg *arg)
 
 	err = nfp_cpp_writeq(cpp, nsp_cpp, nsp_command,
 			     FIELD_PREP(NSP_COMMAND_OPTION, arg->option) |
+			     FIELD_PREP(NSP_COMMAND_CODE_MJ_VER, state->ver.major) |
 			     FIELD_PREP(NSP_COMMAND_CODE, arg->code) |
 			     FIELD_PREP(NSP_COMMAND_DMA_BUF, arg->dma) |
 			     FIELD_PREP(NSP_COMMAND_START, 1));