Commit Graph

8 Commits

Author SHA1 Message Date
Neil Horman
133b75923b mk: add library version extension
To differentiate libraries that break ABI, we add a library version number
suffix to the library, which must be incremented when a given libraries ABI is
broken.  This patch enforces that addition, sets the initial abi soname
extension to 1 for each library and creates a symlink to the base SONAME so that
the test applications will link properly.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
2015-02-03 16:56:58 +01:00
Neil Horman
9d41beed24 lib: provide initial versioning
Add linker version script files to each DPDK library to put a stake in the
ground from which we can start cleaning up API's

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
2015-02-03 16:56:58 +01:00
Stephen Hemminger
4e4510dfff ethdev: remove useless stats zeroing in drivers
The rte_eth_stats_get is the only API that should call the device
statistics function directly, and it already does a memset of the
resulting structure since commit 02331c16ec. Therefore doing
memset() in the driver is redundant and should be removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
[David: remove also in igbvf and pcap PMDs]
Acked-By: David Marchand <david.marchand@6wind.com>
2015-01-27 12:36:23 +01:00
Daniel Mrzyglod
dd6590fe2f af_packet: fix possible memory leak
In rte_pmd_init_internals, we are mapping memory but not released
if error occurs it could produce memory leak.
Add unmmap function to release memory.

Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Michal Jastrzebski <michalx.k.jastrzebski@intel.com>
Acked-by: John W. Linville <linville@tuxdriver.com>
2014-12-19 23:30:25 +01:00
Daniel Mrzyglod
74ab022182 af_packet: fix memory allocation checks
In rte_eth_af_packet.c we are we are missing NULL pointer
checks after calls to allocate memory for queues.
Add checking NULL pointer and error handling.

Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
2014-12-18 22:52:39 +01:00
Bruce Richardson
b5af5c7967 af_packet: fix crash on initialization failure
The cleanup code on error checks for *internals being NULL only after
using the pointer to perform other cleanup. Fix this by moving the
clean-up based on the pointer inside the check for NULL.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2014-12-17 01:04:06 +01:00
John W. Linville
a3a03e13a6 af_packet: add compile-time checks for kernel-specific options
This allows the PMD to compile with kernels that don't support the
options in question.  The "#if defined(...)" lines are a bit ugly,
but I don't know of any better way to accomplish the task.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
2014-12-05 22:09:23 +01:00
John W. Linville
364e08f2bb af_packet: add PMD for AF_PACKET-based virtual devices
This is a Linux-specific virtual PMD driver backed by an AF_PACKET
socket.  This implementation uses mmap'ed ring buffers to limit copying
and user/kernel transitions.  The PACKET_FANOUT_HASH behavior of
AF_PACKET is used for frame reception.  In the current implementation,
Tx and Rx queues are always paired, and therefore are always equal
in number -- changing this would be a Simple Matter Of Programming.

Interfaces of this type are created with a command line option like
"--vdev=eth_af_packet0,iface=...".  There are a number of options available
as arguments:

 - Interface is chosen by "iface" (required)
 - Number of queue pairs set by "qpairs" (optional, default: 1)
 - AF_PACKET MMAP block size set by "blocksz" (optional, default: 4096)
 - AF_PACKET MMAP frame size set by "framesz" (optional, default: 2048)
 - AF_PACKET MMAP frame count set by "framecnt" (optional, default: 512)

Signed-off-by: John W. Linville <linville@tuxdriver.com>
[Thomas: disable because of incompatibility with some kernels]
2014-11-24 16:39:49 +01:00