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From: Stephen Hemminger <stephen@networkplumber.org>
To: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Cc: dev@dpdk.org, lijuan.tu@intel.com, juraj.linkes@pantheon.tech,
	ohilyard@iol.unh.edu, david.marchand@redhat.com,
	thomas@monjalon.net, jerinj@marvell.com,
	bruce.richardson@intel.com, kathleen.capella@arm.com, nd@arm.com,
	Ruifeng Wang <ruifeng.wang@arm.com>
Subject: Re: [PATCH v2 2/2] examples/l3fwd: make RX and TX queue size configurable
Date: Thu, 10 Feb 2022 17:01:47 -0800	[thread overview]
Message-ID: <20220210170147.08c43652@hermes.local> (raw)
In-Reply-To: <20220211002607.80058-2-honnappa.nagarahalli@arm.com>

On Fri, 11 Feb 2022 00:26:07 +0000
Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> wrote:

> +static void
> +parse_rx_queue_size(const char *rx_queue_size_arg)
> +{
> +	char *end = NULL;
> +	uint32_t rx_queue_size;
> +
> +	/* parse decimal string */
> +	rx_queue_size = strtoul(rx_queue_size_arg, &end, 10);
> +	if ((rx_queue_size_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
> +		return;
> +
> +	if (rx_queue_size == 0)
> +		return;
> +
> +	nb_rxd = rx_queue_size;
> +}
> +
> +static void
> +parse_tx_queue_size(const char *tx_queue_size_arg)
> +{
> +	char *end = NULL;
> +	uint32_t tx_queue_size;
> +
> +	/* parse decimal string */
> +	tx_queue_size = strtoul(tx_queue_size_arg, &end, 10);
> +	if ((tx_queue_size_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
> +		return;
> +
> +	if (tx_queue_size == 0)
> +		return;
> +
> +	nb_txd = tx_queue_size;

These are duplications of the same function, just different result.
Also programs should test for invalid queue size which is currently
limited to 16 bits by rte_eth_dev_configure

static void
parse_queue_size(const char *size_arg, uint32_t *size_ret)
{
	unsigned long result;
	char *end;

	result = strtoul(size_arg, &end, 0);
	if (size_arg[0] == '\0' || *end != '\0' || result > UINT16_MAX)
		rte_exit(EXIT_FAILURE, "Invalid queue size '%s'\n", size_arg);
	*size_ret = result;
}

  parent reply	other threads:[~2022-02-11  1:01 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-02  6:04 [PATCH 1/2] examples/l3fwd: use single set of variables throughout the code Honnappa Nagarahalli
2022-02-02  6:04 ` [PATCH 2/2] examples/l3fwd: make RX and TX queue size configurable Honnappa Nagarahalli
2022-02-08  7:41   ` Ruifeng Wang
2022-02-02  8:49 ` [PATCH 1/2] examples/l3fwd: use single set of variables throughout the code Bruce Richardson
2022-02-11  0:26 ` [PATCH v2 " Honnappa Nagarahalli
2022-02-11  0:26   ` [PATCH v2 2/2] examples/l3fwd: make RX and TX queue size configurable Honnappa Nagarahalli
2022-02-11  0:53     ` Stephen Hemminger
2022-02-11  3:43       ` Honnappa Nagarahalli
2022-02-11  1:01     ` Stephen Hemminger [this message]
2022-02-11  3:38       ` Honnappa Nagarahalli
2022-02-23  6:09 ` [PATCH v3 1/2] examples/l3fwd: use single set of variables throughout the code Honnappa Nagarahalli
2022-02-23  6:09   ` [PATCH v3 2/2] examples/l3fwd: make RX and TX queue size configurable Honnappa Nagarahalli
2022-02-23  6:13   ` [PATCH v3 1/2] examples/l3fwd: use single set of variables throughout the code Honnappa Nagarahalli
2022-02-23  9:22     ` Kevin Traynor
2022-03-01  1:56   ` Han, YingyaX
2022-03-08  9:22     ` Thomas Monjalon

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