diff options
| author | Faizal Rahim <[email protected]> | 2025-03-18 03:07:34 +0000 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2025-04-18 15:43:10 +0000 |
| commit | 425d8d9cb092fdd38e139dc6c104cade85896ba4 (patch) | |
| tree | 5cff61c0073f79421b10c8411e5ff0bdf7e6eec8 /drivers/net/ethernet/intel/igc | |
| parent | igc: rename I225_RXPBSIZE_DEFAULT and I225_TXPBSIZE_DEFAULT (diff) | |
| download | kernel-425d8d9cb092fdd38e139dc6c104cade85896ba4.tar.gz kernel-425d8d9cb092fdd38e139dc6c104cade85896ba4.zip | |
igc: use FIELD_PREP and GENMASK for existing TX packet buffer size
In preparation for an upcoming patch that will modify the TX buffer size
in TSN mode, replace IGC_TXPBSIZE_TSN and IGC_TXPBSIZE_DEFAULT
implementation with new macros that utilizes FIELD_PREP and GENMASK for
clarity.
The newly introduced macros follow the naming from the i226 SW User Manual
for easy reference.
I've tested IGC_TXPBSIZE_TSN and IGC_TXPBSIZE_DEFAULT before and after the
refactoring, and their values remain unchanged.
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: Faizal Rahim <[email protected]>
Tested-by: Mor Bar-Gabay <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_defines.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h index 34b3b1a7610e..ec8f926362eb 100644 --- a/drivers/net/ethernet/intel/igc/igc_defines.h +++ b/drivers/net/ethernet/intel/igc/igc_defines.h @@ -398,10 +398,29 @@ /* RXPBSIZE default value for Express and BMC buffer */ #define IGC_RXPBSIZE_EXP_BMC_DEFAULT 0x000000A2 -#define IGC_TXPBSIZE_DEFAULT 0x04000014 /* TXPBSIZE default */ #define IGC_RXPBS_CFG_TS_EN 0x80000000 /* Timestamp in Rx buffer */ -#define IGC_TXPBSIZE_TSN 0x04145145 /* 5k bytes buffer for each queue */ +/* Mask for TX packet buffer size */ +#define IGC_TXPB0SIZE_MASK GENMASK(5, 0) +#define IGC_TXPB1SIZE_MASK GENMASK(11, 6) +#define IGC_TXPB2SIZE_MASK GENMASK(17, 12) +#define IGC_TXPB3SIZE_MASK GENMASK(23, 18) +/* Mask for OS to BMC packet buffer size */ +#define IGC_OS2BMCPBSIZE_MASK GENMASK(29, 24) +/* TX Packet buffer size in KB */ +#define IGC_TXPB0SIZE(x) FIELD_PREP(IGC_TXPB0SIZE_MASK, (x)) +#define IGC_TXPB1SIZE(x) FIELD_PREP(IGC_TXPB1SIZE_MASK, (x)) +#define IGC_TXPB2SIZE(x) FIELD_PREP(IGC_TXPB2SIZE_MASK, (x)) +#define IGC_TXPB3SIZE(x) FIELD_PREP(IGC_TXPB3SIZE_MASK, (x)) +/* OS to BMC packet buffer size in KB */ +#define IGC_OS2BMCPBSIZE(x) FIELD_PREP(IGC_OS2BMCPBSIZE_MASK, (x)) +/* Default value following I225/I226 SW User Manual Section 8.3.2 */ +#define IGC_TXPBSIZE_DEFAULT ( \ + IGC_TXPB0SIZE(20) | IGC_TXPB1SIZE(0) | IGC_TXPB2SIZE(0) | \ + IGC_TXPB3SIZE(0) | IGC_OS2BMCPBSIZE(4)) +#define IGC_TXPBSIZE_TSN ( \ + IGC_TXPB0SIZE(5) | IGC_TXPB1SIZE(5) | IGC_TXPB2SIZE(5) | \ + IGC_TXPB3SIZE(5) | IGC_OS2BMCPBSIZE(4)) #define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */ #define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */ |