summary |
shortlog |
log |
commit | commitdiff |
tree
raw |
patch |
inline | side by side (from parent 1:
f160666)
Having packets received without any offload flags given in the mbuf is not
very useful, and performance tests with testpmd indicates little
benefit is got with the current code by turning off the flags. This makes
the build-time option pointless, so we can remove it.
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_DRIVER=n
CONFIG_RTE_LIBRTE_IXGBE_PF_DISABLE_STRIP_CRC=n
CONFIG_RTE_IXGBE_INC_VECTOR=y
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_DRIVER=n
CONFIG_RTE_LIBRTE_IXGBE_PF_DISABLE_STRIP_CRC=n
CONFIG_RTE_IXGBE_INC_VECTOR=y
-CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=y
#
# Compile burst-oriented I40E PMD driver
#
# Compile burst-oriented I40E PMD driver
-* Enabled by RX_OLFLAGS (RTE_IXGBE_RX_OLFLAGS_ENABLE=y)
-
-
To guarantee the constraint, configuration flags in dev_conf.rxmode will be checked:
* hw_vlan_strip
To guarantee the constraint, configuration flags in dev_conf.rxmode will be checked:
* hw_vlan_strip
Sample Application Notes
------------------------
Sample Application Notes
------------------------
-testpmd
-~~~~~~~
-
-By default, using CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=y:
-
-.. code-block:: console
-
- ./x86_64-native-linuxapp-gcc/app/testpmd -l 8-9 -n 4 -- -i --burst=32 --rxfreet=32 --mbcache=250 --txpt=32 --rxht=8 --rxwt=0 --txfreet=32 --txrst=32 --txqflags=0xf01
-
-When CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=n, better performance can be achieved:
-
-.. code-block:: console
-
- ./x86_64-native-linuxapp-gcc/app/testpmd -l 8-9 -n 4 -- -i --burst=32 --rxfreet=32 --mbcache=250 --txpt=32 --rxht=8 --rxwt=0 --txfreet=32 --txrst=32 --txqflags=0xf01 --disable-hw-vlan
-
struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf;
struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf;
-#ifndef RTE_IXGBE_RX_OLFLAGS_ENABLE
- /* whithout rx ol_flags, no VP flag report */
- if (rxmode->hw_vlan_strip != 0 ||
- rxmode->hw_vlan_extend != 0)
- return -1;
-#endif
-
/* no fdir support */
if (fconf->mode != RTE_FDIR_MODE_NONE)
return -1;
/* no fdir support */
if (fconf->mode != RTE_FDIR_MODE_NONE)
return -1;
IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
}
IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
}
-/* Handling the offload flags (olflags) field takes computation
- * time when receiving packets. Therefore we provide a flag to disable
- * the processing of the olflags field when they are not needed. This
- * gives improved performance, at the cost of losing the offload info
- * in the received packet
- */
-#ifdef RTE_IXGBE_RX_OLFLAGS_ENABLE
-
#define VTAG_SHIFT (3)
static inline void
#define VTAG_SHIFT (3)
static inline void
rx_pkts[2]->ol_flags = vol.e[2];
rx_pkts[3]->ol_flags = vol.e[3];
}
rx_pkts[2]->ol_flags = vol.e[2];
rx_pkts[3]->ol_flags = vol.e[3];
}
-#else
-#define desc_to_olflags_v(sterr_tmp1, sterr_tmp2, staterr, rx_pkts)
-#endif
/*
* vPMD raw receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)
/*
* vPMD raw receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)
mb0 = rxep[0].mbuf;
mb1 = rxep[1].mbuf;
mb0 = rxep[0].mbuf;
mb1 = rxep[1].mbuf;
-#ifndef RTE_IXGBE_RX_OLFLAGS_ENABLE
- {
- uintptr_t p0, p1;
- /*
- * Flush mbuf with pkt template.
- * Data to be rearmed is 6 bytes long.
- */
- p0 = (uintptr_t)&mb0->rearm_data;
- *(uint64_t *)p0 = rxq->mbuf_initializer;
- p1 = (uintptr_t)&mb1->rearm_data;
- *(uint64_t *)p1 = rxq->mbuf_initializer;
- }
-#endif
-
/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
vaddr0 = _mm_loadu_si128((__m128i *)&(mb0->buf_addr));
vaddr1 = _mm_loadu_si128((__m128i *)&(mb1->buf_addr));
/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
vaddr0 = _mm_loadu_si128((__m128i *)&(mb0->buf_addr));
vaddr1 = _mm_loadu_si128((__m128i *)&(mb1->buf_addr));
IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
}
IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
}
-/* Handling the offload flags (olflags) field takes computation
- * time when receiving packets. Therefore we provide a flag to disable
- * the processing of the olflags field when they are not needed. This
- * gives improved performance, at the cost of losing the offload info
- * in the received packet
- */
-#ifdef RTE_IXGBE_RX_OLFLAGS_ENABLE
-
static inline void
desc_to_olflags_v(__m128i descs[4], __m128i mbuf_init, uint8_t vlan_flags,
struct rte_mbuf **rx_pkts)
static inline void
desc_to_olflags_v(__m128i descs[4], __m128i mbuf_init, uint8_t vlan_flags,
struct rte_mbuf **rx_pkts)
_mm_store_si128((__m128i *)&rx_pkts[2]->rearm_data, rearm2);
_mm_store_si128((__m128i *)&rx_pkts[3]->rearm_data, rearm3);
}
_mm_store_si128((__m128i *)&rx_pkts[2]->rearm_data, rearm2);
_mm_store_si128((__m128i *)&rx_pkts[3]->rearm_data, rearm3);
}
-#else
-#define desc_to_olflags_v(desc, vlan_flags, rx_pkts) do { \
- RTE_SET_USED(vlan_flags); \
- } while (0)
-#endif
/*
* vPMD raw receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)
/*
* vPMD raw receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)