Skip to content

W
wr-switch-sw
Commit ca1cee2b authored by Adam Wujek's avatar Adam Wujek 💬
Browse files
Options

kernel/wr_pstats: print pstats counters' description in sysctl 

Signed-off-by: Adam Wujek's avatarAdam Wujek <adam.wujek@cern.ch>
parent b8ca02f1
Hide whitespace changes
Inline Side-by-side
Showing with 111 additions and 23 deletions
kernel/wr_pstats/wr_pstats.c
View file @ ca1cee2b
......@@ -236,6 +236,27 @@ static int pstats_rd_cntrs(int port)
return 0;
}
/* SYSCTL handler, pass description of counters */
static int pstats_desc_handler(ctl_table *ctl, int write, void *buffer,
size_t *lenp, loff_t *ppos)
{
unsigned int data;
unsigned int version;
if (!write) {
/* get version number */
data = pstats_readl(pstats_dev, INFO);
version = PSTATS_INFO_VER_R(data);
if (version >= PSTATS_NAMES_ARRAY_SIZE) {
version = 0;
}
ctl->data = (void *)pstats_names[version];
ctl->maxlen = strlen(pstats_names[version]);
}
return proc_dostring(ctl, 0, buffer, lenp, ppos);
}
/* SYSCTL handler, reads counters from hw and passes to sysfs */
static int pstats_handler(ctl_table *ctl, int write, void *buffer,
size_t *lenp, loff_t *ppos)
......@@ -260,7 +281,7 @@ static int pstats_handler(ctl_table *ctl, int write, void *buffer,
return ret;
}
static ctl_table pstats_ctl_table[20]; /* initialized in _init function */
static ctl_table pstats_ctl_table[21]; /* initialized in _init function */
static ctl_table proc_table[] = {
{
......@@ -290,6 +311,8 @@ static struct ctl_table_header *pstats_header;
static int __init pstats_init(void)
{
int i, err = 0;
unsigned int data;
unsigned int version;
/*convert nports to one-hot port mask (for enabling IRQs*/
printk(KERN_INFO "nports=%u\n", pstats_nports);
......@@ -313,6 +336,16 @@ static int __init pstats_init(void)
pstats_ctl_table[i].proc_handler = pstats_handler;
pstats_ctl_table[i].extra1 = (void *)i;
i++;
/* fill data and maxlen at open time, so we can replace FPGA
* without reloading kernel module */
pstats_ctl_table[i].procname = "description";
pstats_ctl_table[i].data = NULL;
pstats_ctl_table[i].maxlen = 0;
pstats_ctl_table[i].mode = 0444;
pstats_ctl_table[i].proc_handler = pstats_desc_handler;
pstats_ctl_table[i].extra1 = (void *)i;
pstats_header = register_sysctl_table(proc_table);
if (!pstats_header) {
......@@ -348,6 +381,14 @@ static int __init pstats_init(void)
wr_nic_pstats_callback = pstats_callback;
/* get version number */
data = pstats_readl(pstats_dev, INFO);
version = PSTATS_INFO_VER_R(data);
if (version >= PSTATS_NAMES_ARRAY_SIZE)
printk(KERN_INFO "port stats version %d not supported\n",
version);
printk(KERN_INFO "%s: initialized\n", KBUILD_MODNAME);
return 0;
......
kernel/wr_pstats/wr_pstats.h
View file @ ca1cee2b
......@@ -7,28 +7,6 @@
#define WRVIC_BASE_IRQ (NR_AIC_IRQS + (5 * 32))
/*****/
#define PSTATS_NPORTS 18 /* how many eth ports are in the switch */
#define PSTATS_CNT_PP 39 /* how many counters per port */
#define PSTATS_ADR_PP ((PSTATS_CNT_PP+3)/4) /* how many address words are
* there per counter (each of
* them stores the state of 4
* counters) */
#define PSTATS_MSB_SHIFT 16 /*how many bits are stored in hw*/
#define PSTATS_LSB_MSK 0x0000ffff
#define PSTATS_MSB_MSK 0xffff0000
#define PSTATS_ALL_MSK 0xffffffff
#define PSTATS_IRQBUFSZ 16
#define PINFO_SIZE 3
#define PINFO_VER 0
#define PINFO_CNTPW 1
#define PINFO_CNTPP 2
extern int (*wr_nic_pstats_callback)(int epnum,
unsigned int ctr[PSTATS_CNT_PP]);
enum { /* names for values, from page 14 of hw/gw document */
PSTATS_C_T_UNDERRUN = 0,
PSTATS_C_R_OVERRUN,
......@@ -69,6 +47,75 @@ enum { /* names for values, from page 14 of hw/gw document */
PSTATS_C_RTU_FULL,
PSTATS_C_RTU_FWD,
PSTATS_C_RTU_RSP,
/* number of counters, add new entries before this line */
PSTATS_NUM_OF_COUNTERS,
};
#define PSTATS_NPORTS 18 /* how many eth ports are in the switch */
#define PSTATS_CNT_PP PSTATS_NUM_OF_COUNTERS /* how many counters per port */
#define PSTATS_ADR_PP ((PSTATS_CNT_PP+3)/4) /* how many address words are
* there per counter (each of
* them stores the state of 4
* counters) */
#define PSTATS_MSB_SHIFT 16 /*how many bits are stored in hw*/
#define PSTATS_LSB_MSK 0x0000ffff
#define PSTATS_MSB_MSK 0xffff0000
#define PSTATS_ALL_MSK 0xffffffff
#define PSTATS_IRQBUFSZ 16
#define PSTATS_NAMES_ARRAY_SIZE 2
#define PINFO_SIZE 3
#define PINFO_VER 0
#define PINFO_CNTPW 1
#define PINFO_CNTPP 2
extern int (*wr_nic_pstats_callback)(int epnum,
unsigned int ctr[PSTATS_CNT_PP]);
static char *pstats_names[PSTATS_NAMES_ARRAY_SIZE] = {
[0] = "Inv pstats ver reported by FPGA" ,
[1] = "TX Underrun\n"
"RX Overrun\n"
"RX Invalid Code\n"
"RX Sync Lost\n"
"RX Pause Frames\n"
"RX Pfilter Dropped\n"
"RX PCS Errors\n"
"RX Giant Frames\n"
"RX Runt Frames\n"
"RX CRC Errors\n"
"RX Pclass 0\n"
"RX Pclass 1\n"
"RX Pclass 2\n"
"RX Pclass 3\n"
"RX Pclass 4\n"
"RX Pclass 5\n"
"RX Pclass 6\n"
"RX Pclass 7\n"
"TX Frames\n"
"RX Frames\n"
"RX Drop RTU Full\n"
"RX PRIO 0\n"
"RX PRIO 1\n"
"RX PRIO 2\n"
"RX PRIO 3\n"
"RX PRIO 4\n"
"RX PRIO 5\n"
"RX PRIO 6\n"
"RX PRIO 7\n"
"RTU Valid\n"
"RTU Responses\n"
"RTU Dropped\n"
"FastMatch: Priority\n"
"FastMatch: FastForward\n"
"FastMatch: NonForward\n"
"FastMatch: Resp Valid\n"
"FullMatch: Resp Valid\n"
"Forwarded\n"
"TRU Resp Valid"
};
#endif
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment