xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sfp: improve support for direct-attach copper cables

Browse Source 
Improve the support for direct-attach copper so that we avoid kernel
warning messages, and report the appropriate PORT_DA type to userspace.
Direct Attach cables can use a number of protocols depending on their
range of speeds.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King
2017-12-29 12:15:28 +00:00
committed by David S. Miller
parent 9962acf7fb
commit f10fcbcf91
2 changed files with 79 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
include/linux/sfp.h
View File

@@ -165,7 +165,41 @@ struct sfp_eeprom_base {
char vendor_rev[4];
union {
__be16 optical_wavelength;
u8 cable_spec;
__be16 cable_compliance;
struct {
#if defined __BIG_ENDIAN_BITFIELD
u8 reserved60_2:6;
u8 fc_pi_4_app_h:1;
u8 sff8431_app_e:1;
u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
u8 sff8431_app_e:1;
u8 fc_pi_4_app_h:1;
u8 reserved60_2:6;
u8 reserved61:8;
#else
#error Unknown Endian
#endif
} __packed passive;
struct {
#if defined __BIG_ENDIAN_BITFIELD
u8 reserved60_4:4;
u8 fc_pi_4_lim:1;
u8 sff8431_lim:1;
u8 fc_pi_4_app_h:1;
u8 sff8431_app_e:1;
u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
u8 sff8431_app_e:1;
u8 fc_pi_4_app_h:1;
u8 sff8431_lim:1;
u8 fc_pi_4_lim:1;
u8 reserved60_4:4;
u8 reserved61:8;
#else
#error Unknown Endian
#endif
} __packed active;
} __packed;
u8 reserved62;
u8 cc_base;