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path: root/sys/pci/if_sisreg.h
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Diffstat (limited to 'sys/pci/if_sisreg.h')
-rw-r--r--sys/pci/if_sisreg.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/pci/if_sisreg.h b/sys/pci/if_sisreg.h
index 3137543..2e4b0e9 100644
--- a/sys/pci/if_sisreg.h
+++ b/sys/pci/if_sisreg.h
@@ -307,10 +307,11 @@ struct sis_desc {
#define SIS_CMDSTS_MORE 0x40000000
#define SIS_CMDSTS_OWN 0x80000000
+#define SIS_CRC_SIZE 0x4
#define SIS_LASTDESC(x) (!((x)->sis_ctl & SIS_CMDSTS_MORE)))
#define SIS_OWNDESC(x) ((x)->sis_ctl & SIS_CMDSTS_OWN)
#define SIS_INC(x, y) { if (++(x) == y) x = 0; }
-#define SIS_RXBYTES(x) ((x)->sis_ctl & SIS_CMDSTS_BUFLEN)
+#define SIS_RXBYTES(x) (((x)->sis_ctl & SIS_CMDSTS_BUFLEN) - SIS_CRC_SIZE)
#define SIS_RXSTAT_COLL 0x00010000
#define SIS_RXSTAT_LOOPBK 0x00020000
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