RDMA RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 435
LSO Read DMA Status Register (offset: 0x4804)
LSO Read DMA Programmable IPv6 Extension Header Register
(offset: 0x4808)
Name Bits Access
Default
Value
Description
Reserved 31:11 RO 0 –
Read DMA PCI-X Split
Transaction Timeout Expired
10 W2C 0 Read DMA PCI-X split transaction timeout
expired.
Read DMA Local Memory
Write Longer Than DMA
Length Error
9 W2C 0 Read DMA Local Memory Write Longer Than
DMA Length Error.
Read DMA PCI FIFO Overread
Error
8 W2C 0 Read DMA PCI FIFO Overread Error (PCI read
longer than DMA length.)
Read DMA PCI FIFO Underrun
Error
7 W2C 0 Read DMA PCI FIFO Underrun Error.
Read DMA PCI FIFO Overrun
Error
6 W2C 0 Read DMA PCI FIFO Overrun Error.
Read DMA PCI Host Address
Overflow Error
5 W2C 0 Read DMA PCI Host Address Overflow Error. A
host address overflow occurs when a single DMA
read begins at an address below a multiple of
4 GB and ends at an address above the same
multiple of 4 GB (i.e., the host memory address
transitions from 0xXXXXXXXX_FFFFFFFF to
0xYYYYYYYY_00000000 in a single read). This
is a fatal error.
Read DMA PCI Parity Error 4 W2C 0 Read DMA PCI Parity Error.
Read DMA PCI Master Abort 3 W2C 0 Read DMA PCI Master Abort Error.
Read DMA PCI Target Abort 2 W2C 0 Read DMA PCI Target Abort Error.
Reserved 1:0 RO 0 –
Name Bits Access
Default
Value
Description
Programmable Extension
Header Type #2 Enable
31 RW 0 This bit enables programmable extension header
#1. If this bit is clear, then the value programmed
in bits [15:8] of this register will be ignored. If this
bit is set, then extension headers will be checked
for a type matching the value in bits [15:8].
Programmable Extension
Header Type #1 Enable
30 RW 0 This bit enables programmable extension header
#1. If this bit is clear, then the value programmed
in bits [7:0] of this register will be ignored. If this
bit is set, then extension headers will be checked
for a type matching the value in bits [7:0].
Reserved 29:16 RO 0 –
Programmable Extension
Header Type #2
15:8 RW 0 These bits contain the programmable extension
header value for programmable header #2.
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