From cdf043e5b8749cf752b0c8d18f907a173a95a7f4 Mon Sep 17 00:00:00 2001 From: Ashwin Sekhar T K Date: Tue, 30 Nov 2021 11:37:00 +0530 Subject: [PATCH] common/cnxk: support waiting for pool filling Add roc_npa_aura_op_available_wait() API which can be used to wait until an NPA pool gets filled up to a certain count of pointers. Signed-off-by: Ashwin Sekhar T K Acked-by: Jerin Jacob --- drivers/common/cnxk/roc_npa.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/common/cnxk/roc_npa.h b/drivers/common/cnxk/roc_npa.h index ead0e5605d..371eeb6ddb 100644 --- a/drivers/common/cnxk/roc_npa.h +++ b/drivers/common/cnxk/roc_npa.h @@ -155,6 +155,32 @@ roc_npa_aura_op_available(uint64_t aura_handle) return reg & 0xFFFFFFFFF; } +/* Wait for a given timeout, repeatedly checking whether the available + * pointers has reached the given count. Returns the available pointer + * count if it has reached the given count or if timeout has expired + */ +static inline uint32_t +roc_npa_aura_op_available_wait(uint64_t aura_handle, uint32_t count, + uint32_t tmo_ms) +{ +#define OP_AVAIL_WAIT_MS_DEFAULT (100) +#define OP_AVAIL_CHECK_INTERVAL_MS (1) + uint32_t op_avail; + int retry; + + tmo_ms = tmo_ms ? tmo_ms : OP_AVAIL_WAIT_MS_DEFAULT; + + retry = tmo_ms / OP_AVAIL_CHECK_INTERVAL_MS; + op_avail = roc_npa_aura_op_available(aura_handle); + while (retry && (op_avail < count)) { + plt_delay_ms(OP_AVAIL_CHECK_INTERVAL_MS); + op_avail = roc_npa_aura_op_available(aura_handle); + retry--; + } + + return op_avail; +} + static inline uint64_t roc_npa_pool_op_performance_counter(uint64_t aura_handle, const int drop) { -- 2.39.5