x86, UV: Clean up uv_tlb.c
SGI UV's uv_tlb.c driver has become rather hard to read, with overly large
functions, non-standard coding style and (way) too long variable, constant
and function names and non-obvious code flow sequences.
This patch improves the readability and maintainability of the driver
significantly, by doing the following strict code cleanups with no side
effects:
- Split long functions into shorter logical functions.
- Shortened some variable and structure member names.
- Added special functions for reads and writes of MMR regs with
very long names.
- Added the 'tunables' table to shortened tunables_write().
- Added the 'stat_description' table to shorten uv_ptc_proc_write().
- Pass fewer 'stat' arguments where it can be derived from the 'bcp'
argument.
- Function definitions consistent on one line, and inline in few (short) cases.
- Moved some small structures and an atomic inline function to the header file.
- Moved some local variables to the blocks where they are used.
- Updated the copyright date.
- Shortened uv_write_global_mmr64() etc. using some aliasing; no
line breaks. Renamed many uv_.. functions that are not exported.
- Aligned structure fields.
[ note that not all structures are aligned the same way though; I'd like
to keep the extensive commenting in some of them. ]
- Shortened some long structure names.
- Standard pass/fail exit from init_per_cpu()
- Vertical alignment for mass initializations.
- More separation between blocks of code.
Tested on a 16-processor Altix UV.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: penberg@kernel.org
Link: http://lkml.kernel.org/r/E1QOw12-0004MN-Lp@eag09.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Cliff Wickman
Ingo Molnar
parent
2a919596c1
commit
f073cc8f39
2 changed files with 1106 additions and 906 deletions
|
|
@ -5,7 +5,7 @@
|
|||
*
|
||||
* SGI UV Broadcast Assist Unit definitions
|
||||
*
|
||||
* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
|
||||
* Copyright (C) 2008-2011 Silicon Graphics, Inc. All rights reserved.
|
||||
*/
|
||||
|
||||
#ifndef _ASM_X86_UV_UV_BAU_H
|
||||
|
|
@ -35,9 +35,9 @@
|
|||
|
||||
#define MAX_CPUS_PER_UVHUB 64
|
||||
#define MAX_CPUS_PER_SOCKET 32
|
||||
#define UV_ADP_SIZE 64 /* hardware-provided max. */
|
||||
#define UV_CPUS_PER_ACT_STATUS 32 /* hardware-provided max. */
|
||||
#define UV_ITEMS_PER_DESCRIPTOR 8
|
||||
#define ADP_SZ 64 /* hardware-provided max. */
|
||||
#define UV_CPUS_PER_AS 32 /* hardware-provided max. */
|
||||
#define ITEMS_PER_DESC 8
|
||||
/* the 'throttle' to prevent the hardware stay-busy bug */
|
||||
#define MAX_BAU_CONCURRENT 3
|
||||
#define UV_ACT_STATUS_MASK 0x3
|
||||
|
|
@ -48,7 +48,7 @@
|
|||
#define UV2_NET_ENDPOINT_INTD 0x28
|
||||
#define UV_NET_ENDPOINT_INTD (is_uv1_hub() ? \
|
||||
UV1_NET_ENDPOINT_INTD : UV2_NET_ENDPOINT_INTD)
|
||||
#define UV_DESC_BASE_PNODE_SHIFT 49
|
||||
#define UV_DESC_PSHIFT 49
|
||||
#define UV_PAYLOADQ_PNODE_SHIFT 49
|
||||
#define UV_PTC_BASENAME "sgi_uv/ptc_statistics"
|
||||
#define UV_BAU_BASENAME "sgi_uv/bau_tunables"
|
||||
|
|
@ -56,7 +56,8 @@
|
|||
#define UV_BAU_TUNABLES_FILE "bau_tunables"
|
||||
#define WHITESPACE " \t\n"
|
||||
#define uv_physnodeaddr(x) ((__pa((unsigned long)(x)) & uv_mmask))
|
||||
|
||||
#define cpubit_isset(cpu, bau_local_cpumask) \
|
||||
test_bit((cpu), (bau_local_cpumask).bits)
|
||||
|
||||
/* [19:16] SOFT_ACK timeout period 19: 1 is urgency 7 17:16 1 is multiplier */
|
||||
/*
|
||||
|
|
@ -72,25 +73,37 @@
|
|||
UV1_INTD_SOFT_ACK_TIMEOUT_PERIOD : \
|
||||
UV2_INTD_SOFT_ACK_TIMEOUT_PERIOD)
|
||||
|
||||
#define BAU_MISC_CONTROL_MULT_MASK 3
|
||||
#define BAU_MISC_CONTROL_MULT_MASK 3
|
||||
|
||||
#define UVH_AGING_PRESCALE_SEL 0x000000b000UL
|
||||
#define UVH_AGING_PRESCALE_SEL 0x000000b000UL
|
||||
/* [30:28] URGENCY_7 an index into a table of times */
|
||||
#define BAU_URGENCY_7_SHIFT 28
|
||||
#define BAU_URGENCY_7_MASK 7
|
||||
#define BAU_URGENCY_7_SHIFT 28
|
||||
#define BAU_URGENCY_7_MASK 7
|
||||
|
||||
#define UVH_TRANSACTION_TIMEOUT 0x000000b200UL
|
||||
#define UVH_TRANSACTION_TIMEOUT 0x000000b200UL
|
||||
/* [45:40] BAU - BAU transaction timeout select - a multiplier */
|
||||
#define BAU_TRANS_SHIFT 40
|
||||
#define BAU_TRANS_MASK 0x3f
|
||||
#define BAU_TRANS_SHIFT 40
|
||||
#define BAU_TRANS_MASK 0x3f
|
||||
|
||||
/*
|
||||
* shorten some awkward names
|
||||
*/
|
||||
#define AS_PUSH_SHIFT UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_SHFT
|
||||
#define SOFTACK_MSHIFT UVH_LB_BAU_MISC_CONTROL_ENABLE_INTD_SOFT_ACK_MODE_SHFT
|
||||
#define SOFTACK_PSHIFT UVH_LB_BAU_MISC_CONTROL_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHFT
|
||||
#define SOFTACK_TIMEOUT_PERIOD UV_INTD_SOFT_ACK_TIMEOUT_PERIOD
|
||||
#define write_gmmr uv_write_global_mmr64
|
||||
#define write_lmmr uv_write_local_mmr
|
||||
#define read_lmmr uv_read_local_mmr
|
||||
#define read_gmmr uv_read_global_mmr64
|
||||
|
||||
/*
|
||||
* bits in UVH_LB_BAU_SB_ACTIVATION_STATUS_0/1
|
||||
*/
|
||||
#define DESC_STATUS_IDLE 0
|
||||
#define DESC_STATUS_ACTIVE 1
|
||||
#define DESC_STATUS_DESTINATION_TIMEOUT 2
|
||||
#define DESC_STATUS_SOURCE_TIMEOUT 3
|
||||
#define DS_IDLE 0
|
||||
#define DS_ACTIVE 1
|
||||
#define DS_DESTINATION_TIMEOUT 2
|
||||
#define DS_SOURCE_TIMEOUT 3
|
||||
/*
|
||||
* bits put together from HRP_LB_BAU_SB_ACTIVATION_STATUS_0/1/2
|
||||
* values 1 and 5 will not occur
|
||||
|
|
@ -111,22 +124,22 @@
|
|||
* threshholds at which to use IPI to free resources
|
||||
*/
|
||||
/* after this # consecutive 'plugged' timeouts, use IPI to release resources */
|
||||
#define PLUGSB4RESET 100
|
||||
#define PLUGSB4RESET 100
|
||||
/* after this many consecutive timeouts, use IPI to release resources */
|
||||
#define TIMEOUTSB4RESET 1
|
||||
#define TIMEOUTSB4RESET 1
|
||||
/* at this number uses of IPI to release resources, giveup the request */
|
||||
#define IPI_RESET_LIMIT 1
|
||||
#define IPI_RESET_LIMIT 1
|
||||
/* after this # consecutive successes, bump up the throttle if it was lowered */
|
||||
#define COMPLETE_THRESHOLD 5
|
||||
#define COMPLETE_THRESHOLD 5
|
||||
|
||||
#define UV_LB_SUBNODEID 0x10
|
||||
#define UV_LB_SUBNODEID 0x10
|
||||
|
||||
/* these two are the same for UV1 and UV2: */
|
||||
#define UV_SA_SHFT UVH_LB_BAU_MISC_CONTROL_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHFT
|
||||
#define UV_SA_MASK UVH_LB_BAU_MISC_CONTROL_INTD_SOFT_ACK_TIMEOUT_PERIOD_MASK
|
||||
/* 4 bits of software ack period */
|
||||
#define UV2_ACK_MASK 0x7UL
|
||||
#define UV2_ACK_UNITS_SHFT 3
|
||||
#define UV2_ACK_MASK 0x7UL
|
||||
#define UV2_ACK_UNITS_SHFT 3
|
||||
#define UV2_LEG_SHFT UV2H_LB_BAU_MISC_CONTROL_USE_LEGACY_DESCRIPTOR_FORMATS_SHFT
|
||||
#define UV2_EXT_SHFT UV2H_LB_BAU_MISC_CONTROL_ENABLE_EXTENDED_SB_STATUS_SHFT
|
||||
|
||||
|
|
@ -149,9 +162,16 @@
|
|||
/*
|
||||
* tuning the action when the numalink network is extremely delayed
|
||||
*/
|
||||
#define CONGESTED_RESPONSE_US 1000 /* 'long' response time, in microseconds */
|
||||
#define CONGESTED_REPS 10 /* long delays averaged over this many broadcasts */
|
||||
#define CONGESTED_PERIOD 30 /* time for the bau to be disabled, in seconds */
|
||||
#define CONGESTED_RESPONSE_US 1000 /* 'long' response time, in
|
||||
microseconds */
|
||||
#define CONGESTED_REPS 10 /* long delays averaged over
|
||||
this many broadcasts */
|
||||
#define CONGESTED_PERIOD 30 /* time for the bau to be
|
||||
disabled, in seconds */
|
||||
/* see msg_type: */
|
||||
#define MSG_NOOP 0
|
||||
#define MSG_REGULAR 1
|
||||
#define MSG_RETRY 2
|
||||
|
||||
/*
|
||||
* Distribution: 32 bytes (256 bits) (bytes 0-0x1f of descriptor)
|
||||
|
|
@ -163,8 +183,8 @@
|
|||
* 'base_dest_nasid' field of the header corresponds to the
|
||||
* destination nodeID associated with that specified bit.
|
||||
*/
|
||||
struct bau_target_uvhubmask {
|
||||
unsigned long bits[BITS_TO_LONGS(UV_DISTRIBUTION_SIZE)];
|
||||
struct bau_targ_hubmask {
|
||||
unsigned long bits[BITS_TO_LONGS(UV_DISTRIBUTION_SIZE)];
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -173,7 +193,7 @@ struct bau_target_uvhubmask {
|
|||
* enough bits for max. cpu's per uvhub)
|
||||
*/
|
||||
struct bau_local_cpumask {
|
||||
unsigned long bits;
|
||||
unsigned long bits;
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -194,14 +214,14 @@ struct bau_local_cpumask {
|
|||
* The payload is software-defined for INTD transactions
|
||||
*/
|
||||
struct bau_msg_payload {
|
||||
unsigned long address; /* signifies a page or all TLB's
|
||||
of the cpu */
|
||||
unsigned long address; /* signifies a page or all
|
||||
TLB's of the cpu */
|
||||
/* 64 bits */
|
||||
unsigned short sending_cpu; /* filled in by sender */
|
||||
unsigned short sending_cpu; /* filled in by sender */
|
||||
/* 16 bits */
|
||||
unsigned short acknowledge_count;/* filled in by destination */
|
||||
unsigned short acknowledge_count; /* filled in by destination */
|
||||
/* 16 bits */
|
||||
unsigned int reserved1:32; /* not usable */
|
||||
unsigned int reserved1:32; /* not usable */
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -210,93 +230,96 @@ struct bau_msg_payload {
|
|||
* see table 4.2.3.0.1 in broacast_assist spec.
|
||||
*/
|
||||
struct bau_msg_header {
|
||||
unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */
|
||||
unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */
|
||||
/* bits 5:0 */
|
||||
unsigned int base_dest_nasid:15; /* nasid of the */
|
||||
/* bits 20:6 */ /* first bit in uvhub map */
|
||||
unsigned int command:8; /* message type */
|
||||
unsigned int base_dest_nasid:15; /* nasid of the first bit */
|
||||
/* bits 20:6 */ /* in uvhub map */
|
||||
unsigned int command:8; /* message type */
|
||||
/* bits 28:21 */
|
||||
/* 0x38: SN3net EndPoint Message */
|
||||
unsigned int rsvd_1:3; /* must be zero */
|
||||
/* 0x38: SN3net EndPoint Message */
|
||||
unsigned int rsvd_1:3; /* must be zero */
|
||||
/* bits 31:29 */
|
||||
/* int will align on 32 bits */
|
||||
unsigned int rsvd_2:9; /* must be zero */
|
||||
/* int will align on 32 bits */
|
||||
unsigned int rsvd_2:9; /* must be zero */
|
||||
/* bits 40:32 */
|
||||
/* Suppl_A is 56-41 */
|
||||
unsigned int sequence:16;/* message sequence number */
|
||||
/* bits 56:41 */ /* becomes bytes 16-17 of msg */
|
||||
/* Address field (96:57) is never used as an
|
||||
address (these are address bits 42:3) */
|
||||
/* Suppl_A is 56-41 */
|
||||
unsigned int sequence:16; /* message sequence number */
|
||||
/* bits 56:41 */ /* becomes bytes 16-17 of msg */
|
||||
/* Address field (96:57) is
|
||||
never used as an address
|
||||
(these are address bits
|
||||
42:3) */
|
||||
|
||||
unsigned int rsvd_3:1; /* must be zero */
|
||||
unsigned int rsvd_3:1; /* must be zero */
|
||||
/* bit 57 */
|
||||
/* address bits 27:4 are payload */
|
||||
/* address bits 27:4 are payload */
|
||||
/* these next 24 (58-81) bits become bytes 12-14 of msg */
|
||||
|
||||
/* bits 65:58 land in byte 12 */
|
||||
unsigned int replied_to:1;/* sent as 0 by the source to byte 12 */
|
||||
unsigned int replied_to:1; /* sent as 0 by the source to
|
||||
byte 12 */
|
||||
/* bit 58 */
|
||||
unsigned int msg_type:3; /* software type of the message*/
|
||||
unsigned int msg_type:3; /* software type of the
|
||||
message */
|
||||
/* bits 61:59 */
|
||||
unsigned int canceled:1; /* message canceled, resource to be freed*/
|
||||
unsigned int canceled:1; /* message canceled, resource
|
||||
is to be freed*/
|
||||
/* bit 62 */
|
||||
unsigned int payload_1a:1;/* not currently used */
|
||||
unsigned int payload_1a:1; /* not currently used */
|
||||
/* bit 63 */
|
||||
unsigned int payload_1b:2;/* not currently used */
|
||||
unsigned int payload_1b:2; /* not currently used */
|
||||
/* bits 65:64 */
|
||||
|
||||
/* bits 73:66 land in byte 13 */
|
||||
unsigned int payload_1ca:6;/* not currently used */
|
||||
unsigned int payload_1ca:6; /* not currently used */
|
||||
/* bits 71:66 */
|
||||
unsigned int payload_1c:2;/* not currently used */
|
||||
unsigned int payload_1c:2; /* not currently used */
|
||||
/* bits 73:72 */
|
||||
|
||||
/* bits 81:74 land in byte 14 */
|
||||
unsigned int payload_1d:6;/* not currently used */
|
||||
unsigned int payload_1d:6; /* not currently used */
|
||||
/* bits 79:74 */
|
||||
unsigned int payload_1e:2;/* not currently used */
|
||||
unsigned int payload_1e:2; /* not currently used */
|
||||
/* bits 81:80 */
|
||||
|
||||
unsigned int rsvd_4:7; /* must be zero */
|
||||
unsigned int rsvd_4:7; /* must be zero */
|
||||
/* bits 88:82 */
|
||||
unsigned int sw_ack_flag:1;/* software acknowledge flag */
|
||||
unsigned int swack_flag:1; /* software acknowledge flag */
|
||||
/* bit 89 */
|
||||
/* INTD trasactions at destination are to
|
||||
wait for software acknowledge */
|
||||
unsigned int rsvd_5:6; /* must be zero */
|
||||
/* INTD trasactions at
|
||||
destination are to wait for
|
||||
software acknowledge */
|
||||
unsigned int rsvd_5:6; /* must be zero */
|
||||
/* bits 95:90 */
|
||||
unsigned int rsvd_6:5; /* must be zero */
|
||||
unsigned int rsvd_6:5; /* must be zero */
|
||||
/* bits 100:96 */
|
||||
unsigned int int_both:1;/* if 1, interrupt both sockets on the uvhub */
|
||||
unsigned int int_both:1; /* if 1, interrupt both sockets
|
||||
on the uvhub */
|
||||
/* bit 101*/
|
||||
unsigned int fairness:3;/* usually zero */
|
||||
unsigned int fairness:3; /* usually zero */
|
||||
/* bits 104:102 */
|
||||
unsigned int multilevel:1; /* multi-level multicast format */
|
||||
unsigned int multilevel:1; /* multi-level multicast
|
||||
format */
|
||||
/* bit 105 */
|
||||
/* 0 for TLB: endpoint multi-unicast messages */
|
||||
unsigned int chaining:1;/* next descriptor is part of this activation*/
|
||||
/* 0 for TLB: endpoint multi-unicast messages */
|
||||
unsigned int chaining:1; /* next descriptor is part of
|
||||
this activation*/
|
||||
/* bit 106 */
|
||||
unsigned int rsvd_7:21; /* must be zero */
|
||||
unsigned int rsvd_7:21; /* must be zero */
|
||||
/* bits 127:107 */
|
||||
};
|
||||
|
||||
/* see msg_type: */
|
||||
#define MSG_NOOP 0
|
||||
#define MSG_REGULAR 1
|
||||
#define MSG_RETRY 2
|
||||
|
||||
/*
|
||||
* The activation descriptor:
|
||||
* The format of the message to send, plus all accompanying control
|
||||
* Should be 64 bytes
|
||||
*/
|
||||
struct bau_desc {
|
||||
struct bau_target_uvhubmask distribution;
|
||||
struct bau_targ_hubmask distribution;
|
||||
/*
|
||||
* message template, consisting of header and payload:
|
||||
*/
|
||||
struct bau_msg_header header;
|
||||
struct bau_msg_payload payload;
|
||||
struct bau_msg_header header;
|
||||
struct bau_msg_payload payload;
|
||||
};
|
||||
/*
|
||||
* -payload-- ---------header------
|
||||
|
|
@ -315,59 +338,51 @@ struct bau_desc {
|
|||
* are 32 bytes (2 micropackets) (256 bits) in length, but contain only 17
|
||||
* bytes of usable data, including the sw ack vector in byte 15 (bits 127:120)
|
||||
* (12 bytes come from bau_msg_payload, 3 from payload_1, 2 from
|
||||
* sw_ack_vector and payload_2)
|
||||
* swack_vec and payload_2)
|
||||
* "Enabling Software Acknowledgment mode (see Section 4.3.3 Software
|
||||
* Acknowledge Processing) also selects 32 byte (17 bytes usable) payload
|
||||
* operation."
|
||||
*/
|
||||
struct bau_payload_queue_entry {
|
||||
unsigned long address; /* signifies a page or all TLB's
|
||||
of the cpu */
|
||||
struct bau_pq_entry {
|
||||
unsigned long address; /* signifies a page or all TLB's
|
||||
of the cpu */
|
||||
/* 64 bits, bytes 0-7 */
|
||||
|
||||
unsigned short sending_cpu; /* cpu that sent the message */
|
||||
unsigned short sending_cpu; /* cpu that sent the message */
|
||||
/* 16 bits, bytes 8-9 */
|
||||
|
||||
unsigned short acknowledge_count; /* filled in by destination */
|
||||
unsigned short acknowledge_count; /* filled in by destination */
|
||||
/* 16 bits, bytes 10-11 */
|
||||
|
||||
/* these next 3 bytes come from bits 58-81 of the message header */
|
||||
unsigned short replied_to:1; /* sent as 0 by the source */
|
||||
unsigned short msg_type:3; /* software message type */
|
||||
unsigned short canceled:1; /* sent as 0 by the source */
|
||||
unsigned short unused1:3; /* not currently using */
|
||||
unsigned short replied_to:1; /* sent as 0 by the source */
|
||||
unsigned short msg_type:3; /* software message type */
|
||||
unsigned short canceled:1; /* sent as 0 by the source */
|
||||
unsigned short unused1:3; /* not currently using */
|
||||
/* byte 12 */
|
||||
|
||||
unsigned char unused2a; /* not currently using */
|
||||
unsigned char unused2a; /* not currently using */
|
||||
/* byte 13 */
|
||||
unsigned char unused2; /* not currently using */
|
||||
unsigned char unused2; /* not currently using */
|
||||
/* byte 14 */
|
||||
|
||||
unsigned char sw_ack_vector; /* filled in by the hardware */
|
||||
unsigned char swack_vec; /* filled in by the hardware */
|
||||
/* byte 15 (bits 127:120) */
|
||||
|
||||
unsigned short sequence; /* message sequence number */
|
||||
unsigned short sequence; /* message sequence number */
|
||||
/* bytes 16-17 */
|
||||
unsigned char unused4[2]; /* not currently using bytes 18-19 */
|
||||
unsigned char unused4[2]; /* not currently using bytes 18-19 */
|
||||
/* bytes 18-19 */
|
||||
|
||||
int number_of_cpus; /* filled in at destination */
|
||||
int number_of_cpus; /* filled in at destination */
|
||||
/* 32 bits, bytes 20-23 (aligned) */
|
||||
|
||||
unsigned char unused5[8]; /* not using */
|
||||
unsigned char unused5[8]; /* not using */
|
||||
/* bytes 24-31 */
|
||||
};
|
||||
|
||||
struct msg_desc {
|
||||
struct bau_payload_queue_entry *msg;
|
||||
int msg_slot;
|
||||
int sw_ack_slot;
|
||||
struct bau_payload_queue_entry *va_queue_first;
|
||||
struct bau_payload_queue_entry *va_queue_last;
|
||||
struct bau_pq_entry *msg;
|
||||
int msg_slot;
|
||||
int swack_slot;
|
||||
struct bau_pq_entry *queue_first;
|
||||
struct bau_pq_entry *queue_last;
|
||||
};
|
||||
|
||||
struct reset_args {
|
||||
int sender;
|
||||
int sender;
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -375,112 +390,226 @@ struct reset_args {
|
|||
*/
|
||||
struct ptc_stats {
|
||||
/* sender statistics */
|
||||
unsigned long s_giveup; /* number of fall backs to IPI-style flushes */
|
||||
unsigned long s_requestor; /* number of shootdown requests */
|
||||
unsigned long s_stimeout; /* source side timeouts */
|
||||
unsigned long s_dtimeout; /* destination side timeouts */
|
||||
unsigned long s_time; /* time spent in sending side */
|
||||
unsigned long s_retriesok; /* successful retries */
|
||||
unsigned long s_ntargcpu; /* total number of cpu's targeted */
|
||||
unsigned long s_ntargself; /* times the sending cpu was targeted */
|
||||
unsigned long s_ntarglocals; /* targets of cpus on the local blade */
|
||||
unsigned long s_ntargremotes; /* targets of cpus on remote blades */
|
||||
unsigned long s_ntarglocaluvhub; /* targets of the local hub */
|
||||
unsigned long s_ntargremoteuvhub; /* remotes hubs targeted */
|
||||
unsigned long s_ntarguvhub; /* total number of uvhubs targeted */
|
||||
unsigned long s_ntarguvhub16; /* number of times target hubs >= 16*/
|
||||
unsigned long s_ntarguvhub8; /* number of times target hubs >= 8 */
|
||||
unsigned long s_ntarguvhub4; /* number of times target hubs >= 4 */
|
||||
unsigned long s_ntarguvhub2; /* number of times target hubs >= 2 */
|
||||
unsigned long s_ntarguvhub1; /* number of times target hubs == 1 */
|
||||
unsigned long s_resets_plug; /* ipi-style resets from plug state */
|
||||
unsigned long s_resets_timeout; /* ipi-style resets from timeouts */
|
||||
unsigned long s_busy; /* status stayed busy past s/w timer */
|
||||
unsigned long s_throttles; /* waits in throttle */
|
||||
unsigned long s_retry_messages; /* retry broadcasts */
|
||||
unsigned long s_bau_reenabled; /* for bau enable/disable */
|
||||
unsigned long s_bau_disabled; /* for bau enable/disable */
|
||||
unsigned long s_giveup; /* number of fall backs to
|
||||
IPI-style flushes */
|
||||
unsigned long s_requestor; /* number of shootdown
|
||||
requests */
|
||||
unsigned long s_stimeout; /* source side timeouts */
|
||||
unsigned long s_dtimeout; /* destination side timeouts */
|
||||
unsigned long s_time; /* time spent in sending side */
|
||||
unsigned long s_retriesok; /* successful retries */
|
||||
unsigned long s_ntargcpu; /* total number of cpu's
|
||||
targeted */
|
||||
unsigned long s_ntargself; /* times the sending cpu was
|
||||
targeted */
|
||||
unsigned long s_ntarglocals; /* targets of cpus on the local
|
||||
blade */
|
||||
unsigned long s_ntargremotes; /* targets of cpus on remote
|
||||
blades */
|
||||
unsigned long s_ntarglocaluvhub; /* targets of the local hub */
|
||||
unsigned long s_ntargremoteuvhub; /* remotes hubs targeted */
|
||||
unsigned long s_ntarguvhub; /* total number of uvhubs
|
||||
targeted */
|
||||
unsigned long s_ntarguvhub16; /* number of times target
|
||||
hubs >= 16*/
|
||||
unsigned long s_ntarguvhub8; /* number of times target
|
||||
hubs >= 8 */
|
||||
unsigned long s_ntarguvhub4; /* number of times target
|
||||
hubs >= 4 */
|
||||
unsigned long s_ntarguvhub2; /* number of times target
|
||||
hubs >= 2 */
|
||||
unsigned long s_ntarguvhub1; /* number of times target
|
||||
hubs == 1 */
|
||||
unsigned long s_resets_plug; /* ipi-style resets from plug
|
||||
state */
|
||||
unsigned long s_resets_timeout; /* ipi-style resets from
|
||||
timeouts */
|
||||
unsigned long s_busy; /* status stayed busy past
|
||||
s/w timer */
|
||||
unsigned long s_throttles; /* waits in throttle */
|
||||
unsigned long s_retry_messages; /* retry broadcasts */
|
||||
unsigned long s_bau_reenabled; /* for bau enable/disable */
|
||||
unsigned long s_bau_disabled; /* for bau enable/disable */
|
||||
/* destination statistics */
|
||||
unsigned long d_alltlb; /* times all tlb's on this cpu were flushed */
|
||||
unsigned long d_onetlb; /* times just one tlb on this cpu was flushed */
|
||||
unsigned long d_multmsg; /* interrupts with multiple messages */
|
||||
unsigned long d_nomsg; /* interrupts with no message */
|
||||
unsigned long d_time; /* time spent on destination side */
|
||||
unsigned long d_requestee; /* number of messages processed */
|
||||
unsigned long d_retries; /* number of retry messages processed */
|
||||
unsigned long d_canceled; /* number of messages canceled by retries */
|
||||
unsigned long d_nocanceled; /* retries that found nothing to cancel */
|
||||
unsigned long d_resets; /* number of ipi-style requests processed */
|
||||
unsigned long d_rcanceled; /* number of messages canceled by resets */
|
||||
unsigned long d_alltlb; /* times all tlb's on this
|
||||
cpu were flushed */
|
||||
unsigned long d_onetlb; /* times just one tlb on this
|
||||
cpu was flushed */
|
||||
unsigned long d_multmsg; /* interrupts with multiple
|
||||
messages */
|
||||
unsigned long d_nomsg; /* interrupts with no message */
|
||||
unsigned long d_time; /* time spent on destination
|
||||
side */
|
||||
unsigned long d_requestee; /* number of messages
|
||||
processed */
|
||||
unsigned long d_retries; /* number of retry messages
|
||||
processed */
|
||||
unsigned long d_canceled; /* number of messages canceled
|
||||
by retries */
|
||||
unsigned long d_nocanceled; /* retries that found nothing
|
||||
to cancel */
|
||||
unsigned long d_resets; /* number of ipi-style requests
|
||||
processed */
|
||||
unsigned long d_rcanceled; /* number of messages canceled
|
||||
by resets */
|
||||
};
|
||||
|
||||
struct tunables {
|
||||
int *tunp;
|
||||
int deflt;
|
||||
};
|
||||
|
||||
struct hub_and_pnode {
|
||||
short uvhub;
|
||||
short pnode;
|
||||
short uvhub;
|
||||
short pnode;
|
||||
};
|
||||
|
||||
struct socket_desc {
|
||||
short num_cpus;
|
||||
short cpu_number[MAX_CPUS_PER_SOCKET];
|
||||
};
|
||||
|
||||
struct uvhub_desc {
|
||||
unsigned short socket_mask;
|
||||
short num_cpus;
|
||||
short uvhub;
|
||||
short pnode;
|
||||
struct socket_desc socket[2];
|
||||
};
|
||||
|
||||
/*
|
||||
* one per-cpu; to locate the software tables
|
||||
*/
|
||||
struct bau_control {
|
||||
struct bau_desc *descriptor_base;
|
||||
struct bau_payload_queue_entry *va_queue_first;
|
||||
struct bau_payload_queue_entry *va_queue_last;
|
||||
struct bau_payload_queue_entry *bau_msg_head;
|
||||
struct bau_control *uvhub_master;
|
||||
struct bau_control *socket_master;
|
||||
struct ptc_stats *statp;
|
||||
unsigned long timeout_interval;
|
||||
unsigned long set_bau_on_time;
|
||||
atomic_t active_descriptor_count;
|
||||
int plugged_tries;
|
||||
int timeout_tries;
|
||||
int ipi_attempts;
|
||||
int conseccompletes;
|
||||
int baudisabled;
|
||||
int set_bau_off;
|
||||
short cpu;
|
||||
short osnode;
|
||||
short uvhub_cpu;
|
||||
short uvhub;
|
||||
short cpus_in_socket;
|
||||
short cpus_in_uvhub;
|
||||
short partition_base_pnode;
|
||||
unsigned short message_number;
|
||||
unsigned short uvhub_quiesce;
|
||||
short socket_acknowledge_count[DEST_Q_SIZE];
|
||||
cycles_t send_message;
|
||||
spinlock_t uvhub_lock;
|
||||
spinlock_t queue_lock;
|
||||
struct bau_desc *descriptor_base;
|
||||
struct bau_pq_entry *queue_first;
|
||||
struct bau_pq_entry *queue_last;
|
||||
struct bau_pq_entry *bau_msg_head;
|
||||
struct bau_control *uvhub_master;
|
||||
struct bau_control *socket_master;
|
||||
struct ptc_stats *statp;
|
||||
unsigned long timeout_interval;
|
||||
unsigned long set_bau_on_time;
|
||||
atomic_t active_descriptor_count;
|
||||
int plugged_tries;
|
||||
int timeout_tries;
|
||||
int ipi_attempts;
|
||||
int conseccompletes;
|
||||
int baudisabled;
|
||||
int set_bau_off;
|
||||
short cpu;
|
||||
short osnode;
|
||||
short uvhub_cpu;
|
||||
short uvhub;
|
||||
short cpus_in_socket;
|
||||
short cpus_in_uvhub;
|
||||
short partition_base_pnode;
|
||||
unsigned short message_number;
|
||||
unsigned short uvhub_quiesce;
|
||||
short socket_acknowledge_count[DEST_Q_SIZE];
|
||||
cycles_t send_message;
|
||||
spinlock_t uvhub_lock;
|
||||
spinlock_t queue_lock;
|
||||
/* tunables */
|
||||
int max_bau_concurrent;
|
||||
int max_bau_concurrent_constant;
|
||||
int plugged_delay;
|
||||
int plugsb4reset;
|
||||
int timeoutsb4reset;
|
||||
int ipi_reset_limit;
|
||||
int complete_threshold;
|
||||
int congested_response_us;
|
||||
int congested_reps;
|
||||
int congested_period;
|
||||
cycles_t period_time;
|
||||
long period_requests;
|
||||
struct hub_and_pnode *target_hub_and_pnode;
|
||||
int max_concurr;
|
||||
int max_concurr_const;
|
||||
int plugged_delay;
|
||||
int plugsb4reset;
|
||||
int timeoutsb4reset;
|
||||
int ipi_reset_limit;
|
||||
int complete_threshold;
|
||||
int cong_response_us;
|
||||
int cong_reps;
|
||||
int cong_period;
|
||||
cycles_t period_time;
|
||||
long period_requests;
|
||||
struct hub_and_pnode *thp;
|
||||
};
|
||||
|
||||
static inline int bau_uvhub_isset(int uvhub, struct bau_target_uvhubmask *dstp)
|
||||
static unsigned long read_mmr_uv2_status(void)
|
||||
{
|
||||
return read_lmmr(UV2H_LB_BAU_SB_ACTIVATION_STATUS_2);
|
||||
}
|
||||
|
||||
static void write_mmr_data_broadcast(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_BAU_DATA_BROADCAST, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_descriptor_base(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_activation(unsigned long index)
|
||||
{
|
||||
write_lmmr(UVH_LB_BAU_SB_ACTIVATION_CONTROL, index);
|
||||
}
|
||||
|
||||
static void write_gmmr_activation(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_SB_ACTIVATION_CONTROL, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_payload_first(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_payload_tail(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_payload_last(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST, mmr_image);
|
||||
}
|
||||
|
||||
static void write_mmr_misc_control(int pnode, unsigned long mmr_image)
|
||||
{
|
||||
write_gmmr(pnode, UVH_LB_BAU_MISC_CONTROL, mmr_image);
|
||||
}
|
||||
|
||||
static unsigned long read_mmr_misc_control(int pnode)
|
||||
{
|
||||
return read_gmmr(pnode, UVH_LB_BAU_MISC_CONTROL);
|
||||
}
|
||||
|
||||
static void write_mmr_sw_ack(unsigned long mr)
|
||||
{
|
||||
uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, mr);
|
||||
}
|
||||
|
||||
static unsigned long read_mmr_sw_ack(void)
|
||||
{
|
||||
return read_lmmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE);
|
||||
}
|
||||
|
||||
static unsigned long read_gmmr_sw_ack(int pnode)
|
||||
{
|
||||
return read_gmmr(pnode, UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE);
|
||||
}
|
||||
|
||||
static void write_mmr_data_config(int pnode, unsigned long mr)
|
||||
{
|
||||
uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, mr);
|
||||
}
|
||||
|
||||
static inline int bau_uvhub_isset(int uvhub, struct bau_targ_hubmask *dstp)
|
||||
{
|
||||
return constant_test_bit(uvhub, &dstp->bits[0]);
|
||||
}
|
||||
static inline void bau_uvhub_set(int pnode, struct bau_target_uvhubmask *dstp)
|
||||
static inline void bau_uvhub_set(int pnode, struct bau_targ_hubmask *dstp)
|
||||
{
|
||||
__set_bit(pnode, &dstp->bits[0]);
|
||||
}
|
||||
static inline void bau_uvhubs_clear(struct bau_target_uvhubmask *dstp,
|
||||
static inline void bau_uvhubs_clear(struct bau_targ_hubmask *dstp,
|
||||
int nbits)
|
||||
{
|
||||
bitmap_zero(&dstp->bits[0], nbits);
|
||||
}
|
||||
static inline int bau_uvhub_weight(struct bau_target_uvhubmask *dstp)
|
||||
static inline int bau_uvhub_weight(struct bau_targ_hubmask *dstp)
|
||||
{
|
||||
return bitmap_weight((unsigned long *)&dstp->bits[0],
|
||||
UV_DISTRIBUTION_SIZE);
|
||||
|
|
@ -491,9 +620,6 @@ static inline void bau_cpubits_clear(struct bau_local_cpumask *dstp, int nbits)
|
|||
bitmap_zero(&dstp->bits, nbits);
|
||||
}
|
||||
|
||||
#define cpubit_isset(cpu, bau_local_cpumask) \
|
||||
test_bit((cpu), (bau_local_cpumask).bits)
|
||||
|
||||
extern void uv_bau_message_intr1(void);
|
||||
extern void uv_bau_timeout_intr1(void);
|
||||
|
||||
|
|
@ -501,7 +627,7 @@ struct atomic_short {
|
|||
short counter;
|
||||
};
|
||||
|
||||
/**
|
||||
/*
|
||||
* atomic_read_short - read a short atomic variable
|
||||
* @v: pointer of type atomic_short
|
||||
*
|
||||
|
|
@ -512,14 +638,14 @@ static inline int atomic_read_short(const struct atomic_short *v)
|
|||
return v->counter;
|
||||
}
|
||||
|
||||
/**
|
||||
* atomic_add_short_return - add and return a short int
|
||||
/*
|
||||
* atom_asr - add and return a short int
|
||||
* @i: short value to add
|
||||
* @v: pointer of type atomic_short
|
||||
*
|
||||
* Atomically adds @i to @v and returns @i + @v
|
||||
*/
|
||||
static inline int atomic_add_short_return(short i, struct atomic_short *v)
|
||||
static inline int atom_asr(short i, struct atomic_short *v)
|
||||
{
|
||||
short __i = i;
|
||||
asm volatile(LOCK_PREFIX "xaddw %0, %1"
|
||||
|
|
@ -528,4 +654,26 @@ static inline int atomic_add_short_return(short i, struct atomic_short *v)
|
|||
return i + __i;
|
||||
}
|
||||
|
||||
/*
|
||||
* conditionally add 1 to *v, unless *v is >= u
|
||||
* return 0 if we cannot add 1 to *v because it is >= u
|
||||
* return 1 if we can add 1 to *v because it is < u
|
||||
* the add is atomic
|
||||
*
|
||||
* This is close to atomic_add_unless(), but this allows the 'u' value
|
||||
* to be lowered below the current 'v'. atomic_add_unless can only stop
|
||||
* on equal.
|
||||
*/
|
||||
static inline int atomic_inc_unless_ge(spinlock_t *lock, atomic_t *v, int u)
|
||||
{
|
||||
spin_lock(lock);
|
||||
if (atomic_read(v) >= u) {
|
||||
spin_unlock(lock);
|
||||
return 0;
|
||||
}
|
||||
atomic_inc(v);
|
||||
spin_unlock(lock);
|
||||
return 1;
|
||||
}
|
||||
|
||||
#endif /* _ASM_X86_UV_UV_BAU_H */
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
Loading…
Reference in a new issue