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netdev-dpdk: Remove unused MAX_NB_MBUF.

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MAX_NB_MBUF was used as a default mempool size for almost all ports.
Not used since new per-port mempool allocation introduced.
MIN_NB_MBUF still used as a lower limit.

CC: Robert Wojciechowicz <robertx.wojciechowicz@intel.com>
Fixes: d555d9bded ("netdev-dpdk: Create separate memory pool for each port.")
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Antonio Fischetti <antonio.fischetti@intel.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Ilya Maximets
2017-11-10 18:16:12 +03:00
committed by Ian Stokes
parent 24e78f9350
commit bc57ed901f
1 changed files with 4 additions and 14 deletions
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18
lib/netdev-dpdk.c
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@@ -89,23 +89,13 @@ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
#define NETDEV_DPDK_MBUF_ALIGN 1024
#define NETDEV_DPDK_MAX_PKT_LEN 9728
/* Max and min number of packets in the mempool. OVS tries to allocate a
* mempool with MAX_NB_MBUF: if this fails (because the system doesn't have
* enough hugepages) we keep halving the number until the allocation succeeds
* or we reach MIN_NB_MBUF */
#define MAX_NB_MBUF (4096 * 64)
/* Min number of packets in the mempool. OVS tries to allocate a mempool with
* roughly estimated number of mbufs: if this fails (because the system doesn't
* have enough hugepages) we keep halving the number until the allocation
* succeeds or we reach MIN_NB_MBUF */
#define MIN_NB_MBUF (4096 * 4)
#define MP_CACHE_SZ RTE_MEMPOOL_CACHE_MAX_SIZE
/* MAX_NB_MBUF can be divided by 2 many times, until MIN_NB_MBUF */
BUILD_ASSERT_DECL(MAX_NB_MBUF % ROUND_DOWN_POW2(MAX_NB_MBUF/MIN_NB_MBUF) == 0);
/* The smallest possible NB_MBUF that we're going to try should be a multiple
* of MP_CACHE_SZ. This is advised by DPDK documentation. */
BUILD_ASSERT_DECL((MAX_NB_MBUF / ROUND_DOWN_POW2(MAX_NB_MBUF/MIN_NB_MBUF))
% MP_CACHE_SZ == 0);
/*
* DPDK XSTATS Counter names definition
*/