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NTB: MFV 42fefc86: Add parameters for Intel SNB B2B addresses

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Add module parameters for the addresses to be used in B2B topology.

Authored by:	Allen Hubbe
Obtained from:	Linux (Dual BSD/GPL driver)
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Conrad Meyer 2015-10-20 01:54:25 +00:00
parent 25ff5df7c4
commit d5bd08b091
1 changed files with 33 additions and 2 deletions
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35
sys/dev/ntb/ntb_hw/ntb_hw.c
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@ -397,7 +397,7 @@ static const struct ntb_xlat_reg xeon_sec_xlat = {
.bar5_xlat = XEON_SBAR5XLAT_OFFSET,
};
static const struct ntb_b2b_addr xeon_b2b_usd_addr = {
static struct ntb_b2b_addr xeon_b2b_usd_addr = {
.bar0_addr = XEON_B2B_BAR0_USD_ADDR,
.bar2_addr64 = XEON_B2B_BAR2_USD_ADDR64,
.bar4_addr64 = XEON_B2B_BAR4_USD_ADDR64,
@ -405,7 +405,7 @@ static const struct ntb_b2b_addr xeon_b2b_usd_addr = {
.bar5_addr32 = XEON_B2B_BAR5_USD_ADDR32,
};
static const struct ntb_b2b_addr xeon_b2b_dsd_addr = {
static struct ntb_b2b_addr xeon_b2b_dsd_addr = {
.bar0_addr = XEON_B2B_BAR0_DSD_ADDR,
.bar2_addr64 = XEON_B2B_BAR2_DSD_ADDR64,
.bar4_addr64 = XEON_B2B_BAR4_DSD_ADDR64,
@ -413,6 +413,37 @@ static const struct ntb_b2b_addr xeon_b2b_dsd_addr = {
.bar5_addr32 = XEON_B2B_BAR5_DSD_ADDR32,
};
SYSCTL_NODE(_hw_ntb, OID_AUTO, xeon_b2b, CTLFLAG_RW, 0,
"B2B MW segment overrides -- MUST be the same on both sides");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, usd_bar2_addr64, CTLFLAG_RDTUN,
&xeon_b2b_usd_addr.bar2_addr64, 0, "If using B2B topology on Xeon "
"hardware, use this 64-bit address on the bus between the NTB devices for "
"the window at BAR2, on the upstream side of the link. MUST be the same "
"address on both sides.");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, usd_bar4_addr64, CTLFLAG_RDTUN,
&xeon_b2b_usd_addr.bar4_addr64, 0, "See usd_bar2_addr64, but BAR4.");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, usd_bar4_addr32, CTLFLAG_RDTUN,
&xeon_b2b_usd_addr.bar4_addr32, 0, "See usd_bar2_addr64, but BAR4 "
"(split-BAR mode).");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, usd_bar5_addr32, CTLFLAG_RDTUN,
&xeon_b2b_usd_addr.bar4_addr32, 0, "See usd_bar2_addr64, but BAR5 "
"(split-BAR mode).");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, dsd_bar2_addr64, CTLFLAG_RDTUN,
&xeon_b2b_dsd_addr.bar2_addr64, 0, "If using B2B topology on Xeon "
"hardware, use this 64-bit address on the bus between the NTB devices for "
"the window at BAR2, on the downstream side of the link. MUST be the same"
" address on both sides.");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, dsd_bar4_addr64, CTLFLAG_RDTUN,
&xeon_b2b_dsd_addr.bar4_addr64, 0, "See dsd_bar2_addr64, but BAR4.");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, dsd_bar4_addr32, CTLFLAG_RDTUN,
&xeon_b2b_dsd_addr.bar4_addr32, 0, "See dsd_bar2_addr64, but BAR4 "
"(split-BAR mode).");
SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, dsd_bar5_addr32, CTLFLAG_RDTUN,
&xeon_b2b_dsd_addr.bar4_addr32, 0, "See dsd_bar2_addr64, but BAR5 "
"(split-BAR mode).");
/*
* OS <-> Driver interface structures
*/