netdev - [PATCH net-next v3 0/4] sfc: add MCDI tracing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <555F813D.8000108@solarflare.com>
Date:	Fri, 22 May 2015 20:19:25 +0100
From:	Edward Cree <ecree@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: [PATCH net-next v3 0/4] sfc: add MCDI tracing

This patchset adds support for logging MCDI (Management-Controller-to-
 Driver Interface) interactions between the sfc driver and a bound device,
 to aid in debugging.
Solarflare has a tool to decode the resulting traces and will look to
 open-source this if there is any external interest, but the protocol is
 already detailed in drivers/net/ethernet/sfc/mcdi_pcol.h.
The logging buffer we allocate per MCDI context is a work area for
 constructing each individual message before logging it with netif_info.
The reason the buffer is long-lived is simply to avoid the overhead of
 allocating and freeing it every MCDI call, since MCDIs are already known
 to be serialised for other reasons.

--
v3: add some explanations to cover letter and patch #4
v2: avoid long lines in cover letter; fix multiline comment style

Edward Cree (3):
  sfc: add tracing of MCDI commands
  sfc: add sysfs entry to control MCDI tracing
  sfc: add module parameter to enable MCDI logging on new functions

Jon Cooper (1):
  sfc: Initialise MCDI buffers to 0 on declaration.

 drivers/net/ethernet/sfc/Kconfig |   9 ++++
 drivers/net/ethernet/sfc/ef10.c  |  27 ++++++----
 drivers/net/ethernet/sfc/efx.c   |  49 +++++++++++++++---
 drivers/net/ethernet/sfc/mcdi.c  | 108 ++++++++++++++++++++++++++++++++++++---
 drivers/net/ethernet/sfc/mcdi.h  |  14 +++--
 drivers/net/ethernet/sfc/ptp.c   |   6 +--
 6 files changed, 181 insertions(+), 32 deletions(-)

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html