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cxgbe(4): Display the number of free PM pages and p-structs in meminfo.

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MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2022-04-05 17:15:31 -07:00
parent f88b31885c
commit c5a7885c80
1 changed files with 12 additions and 7 deletions
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19
sys/dev/cxgbe/t4_main.c
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@ -9698,7 +9698,7 @@ sysctl_meminfo(SYSCTL_HANDLER_ARGS)
struct adapter *sc = arg1;
struct sbuf *sb;
int rc, i, n;
uint32_t lo, hi, used, alloc;
uint32_t lo, hi, used, free, alloc;
static const char *memory[] = {
"EDC0:", "EDC1:", "MC:", "MC0:", "MC1:", "HMA:"
};
@ -9899,19 +9899,24 @@ sysctl_meminfo(SYSCTL_HANDLER_ARGS)
mem_region_show(sb, "uP Extmem2:", lo, hi);
lo = t4_read_reg(sc, A_TP_PMM_RX_MAX_PAGE);
sbuf_printf(sb, "\n%u Rx pages of size %uKiB for %u channels\n",
G_PMRXMAXPAGE(lo),
for (i = 0, free = 0; i < 2; i++)
free += G_FREERXPAGECOUNT(t4_read_reg(sc, A_TP_FLM_FREE_RX_CNT));
sbuf_printf(sb, "\n%u Rx pages (%u free) of size %uKiB for %u channels\n",
G_PMRXMAXPAGE(lo), free,
t4_read_reg(sc, A_TP_PMM_RX_PAGE_SIZE) >> 10,
(lo & F_PMRXNUMCHN) ? 2 : 1);
lo = t4_read_reg(sc, A_TP_PMM_TX_MAX_PAGE);
hi = t4_read_reg(sc, A_TP_PMM_TX_PAGE_SIZE);
sbuf_printf(sb, "%u Tx pages of size %u%ciB for %u channels\n",
G_PMTXMAXPAGE(lo),
for (i = 0, free = 0; i < 4; i++)
free += G_FREETXPAGECOUNT(t4_read_reg(sc, A_TP_FLM_FREE_TX_CNT));
sbuf_printf(sb, "%u Tx pages (%u free) of size %u%ciB for %u channels\n",
G_PMTXMAXPAGE(lo), free,
hi >= (1 << 20) ? (hi >> 20) : (hi >> 10),
hi >= (1 << 20) ? 'M' : 'K', 1 << G_PMTXNUMCHN(lo));
sbuf_printf(sb, "%u p-structs\n",
t4_read_reg(sc, A_TP_CMM_MM_MAX_PSTRUCT));
sbuf_printf(sb, "%u p-structs (%u free)\n",
t4_read_reg(sc, A_TP_CMM_MM_MAX_PSTRUCT),
G_FREEPSTRUCTCOUNT(t4_read_reg(sc, A_TP_FLM_FREE_PS_CNT)));
for (i = 0; i < 4; i++) {
if (chip_id(sc) > CHELSIO_T5)