From: Singh, Krishneil K <krishneil.k.singh@intel.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH v2] fm10k: use software values when checking for Tx hangs in hot path
Date: Mon, 11 Jul 2016 19:26:21 +0000 [thread overview]
Message-ID: <EF50CC0C76A53A44BAD798C58E0A157E273A1893@ORSMSX103.amr.corp.intel.com> (raw)
In-Reply-To: <20160609215605.19957-1-jacob.e.keller@intel.com>
-----Original Message-----
From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On Behalf Of Jacob Keller
Sent: Thursday, June 9, 2016 2:56 PM
To: Intel Wired LAN <intel-wired-lan@lists.osuosl.org>
Subject: [Intel-wired-lan] [PATCH v2] fm10k: use software values when checking for Tx hangs in hot path
A previous patch added support to check for hardware tx pending in the fm10k_down routine. This support was intended to ensure that we accurately check what the hardware state is. However, checking for Tx hangs in this manor during the hotpath results in a large performance hit. Avoid this by making the hotpath check use the SW counters instead.
Fixes: a0f53cf49cb0 ("fm10k: use actual hardware registers when checking for pending Tx", 2016-06-08)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
---
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
prev parent reply other threads:[~2016-07-11 19:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-09 21:56 [Intel-wired-lan] [PATCH v2] fm10k: use software values when checking for Tx hangs in hot path Jacob Keller
2016-06-09 21:58 ` Keller, Jacob E
2016-07-11 19:26 ` Singh, Krishneil K [this message]
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