ixgbe: fix Tx hang when RS distance exceeds HW limit

[dpdk.git] / doc / guides / rel_notes / release_2_2.rst

diff --git a/doc/guides/rel_notes/release_2_2.rst b/doc/guides/rel_notes/release_2_2.rst
index 76f3c0c..5636aad 100644 (file)
--- a/doc/guides/rel_notes/release_2_2.rst
+++ b/doc/guides/rel_notes/release_2_2.rst
@@ -4,6 +4,11 @@ DPDK Release 2.2
 New Features
 ------------
 
 New Features
 ------------
 

+* **Enabled freeing of ring.**
+
+  New function rte_ring_free() allows the user to free a ring
+  if it was created with rte_ring_create().
+

 * **Extended Statistics**
 
   Define extended statistics naming scheme to store metadata in the name
 * **Extended Statistics**
 
   Define extended statistics naming scheme to store metadata in the name


@@ -14,6 +19,9 @@ New Features
   * igb
   * igbvf
   * i40e
   * igb
   * igbvf
   * i40e

+  * i40evf
+  * fm10k
+  * virtio

 
 * **Added API in ethdev to retrieve RX/TX queue information.**
 
 
 * **Added API in ethdev to retrieve RX/TX queue information.**
 


@@ -39,10 +47,18 @@ New Features
 
 * **Added i40e vector RX/TX.**
 
 
 * **Added i40e vector RX/TX.**
 

+* **Added i40e Rx interrupt support.**
+

 * **Added i40e flow control support.**
 
 * **Added DCB support to i40e PF driver.**
 
 * **Added i40e flow control support.**
 
 * **Added DCB support to i40e PF driver.**
 

+* **Added RSS/FD input set granularity on Intel X710/XL710.**
+
+* **Added different GRE key length for input set on Intel X710/XL710.**
+
+* **Added flow director support in i40e VF.**
+

 * **Added fm10k vector RX/TX.**
 
 * **Added fm10k TSO support for both PF and VF.**
 * **Added fm10k vector RX/TX.**
 
 * **Added fm10k TSO support for both PF and VF.**


@@ -74,6 +90,8 @@ New Features
 
 * **Added vhost-user multiple queue support.**
 
 
 * **Added vhost-user multiple queue support.**
 

+* **Added port hotplug support to vmxnet3.**
+

 * **Added port hotplug support to xenvirt.**
 
 
 * **Added port hotplug support to xenvirt.**
 
 


@@ -98,6 +116,10 @@ Drivers
   in Intel I210 NIC, as EtherType in RX descriptor is in bits 8:10 of
   Packet Type and not in the default bits 0:2.
 
   in Intel I210 NIC, as EtherType in RX descriptor is in bits 8:10 of
   Packet Type and not in the default bits 0:2.
 

+* **igb: Fixed VF start with PF stopped.**
+
+  VF needs the PF interrupt support initialized even if not started.
+

 * **ixgbe: Fixed issue with X550 DCB.**
 
   Fixed a DCB issue with x550 where for 8 TCs (Traffic Classes), if a packet
 * **ixgbe: Fixed issue with X550 DCB.**
 
   Fixed a DCB issue with x550 where for 8 TCs (Traffic Classes), if a packet


@@ -108,11 +130,38 @@ Drivers
 
   Fixed issue where a burst size less than 32 didn't receive anything.
 
 
   Fixed issue where a burst size less than 32 didn't receive anything.
 

+* **ixgbe: Fixed VF start with PF stopped.**
+
+  VF needs the PF interrupt support initialized even if not started.
+
+* **ixgbe: Fixed TX hang when RS distance exceeds HW limit.**
+
+  Fixed an issue when TX queue can hang when a lot of highly fragmented
+  packets have to be sent.
+  As part of that fix, tx_rs_thresh for ixgbe PMD is not allowed to be greater
+  then to 32 to comply with HW restrictions.
+

 * **i40e: Fixed base driver allocation when not using first numa node.**
 
   Fixed i40e issue that occurred when a DPDK application didn't initialize
   ports if memory wasn't available on socket 0.
 
 * **i40e: Fixed base driver allocation when not using first numa node.**
 
   Fixed i40e issue that occurred when a DPDK application didn't initialize
   ports if memory wasn't available on socket 0.
 

+* **i40e: Fixed maximum of 64 queues per port.**
+
+  Fixed the issue in i40e of cannot supporting more than 64 queues per port,
+  though hardware actually supports that. The real number of queues may vary,
+  as long as the total number of queues used in PF, VFs, VMDq and FD does not
+  exceeds the hardware maximum.
+
+* **i40e: Fixed statistics of packets.**
+
+  Added discarding packets on VSI to the stats and rectify the old statistics.
+
+* **i40e: Fixed issue of not freeing memzone.**
+
+  Fixed the issue of not freeing memzone in the call to free the memory for
+  adminq DMA.
+

 * **vhost: Fixed Qemu shutdown.**
 
   Fixed issue with libvirt ``virsh destroy`` not killing the VM.
 * **vhost: Fixed Qemu shutdown.**
 
   Fixed issue with libvirt ``virsh destroy`` not killing the VM.


@@ -134,6 +183,18 @@ Libraries
   Fixed issue where an incorrect Cuckoo Hash key table size could be
   calculated limiting the size to 4GB.
 
   Fixed issue where an incorrect Cuckoo Hash key table size could be
   calculated limiting the size to 4GB.
 

+* **hash: Fixed incorrect lookup if key is all zero.**
+
+  Fixed issue in hash library that occurred if an all zero
+  key was not added in the table and the key was looked up,
+  resulting in an incorrect hit.
+
+* **hash: Fixed thread scaling by reducing contention.**
+
+  Fixed issue in hash library where, using multiple cores with
+  hardware transactional memory support, thread scaling did not work,
+  due to the global ring that is shared by all cores.
+

 
 Examples
 ~~~~~~~~
 
 Examples
 ~~~~~~~~


@@ -183,9 +244,18 @@ ABI Changes
 * The ethdev flow director entries for SCTP were changed.
   It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
 
 * The ethdev flow director entries for SCTP were changed.
   It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
 

+* The ethdev flow director structure rte_eth_fdir_flow_ext structure is changed.
+  New fields are added to support flow director filtering in VF.
+
+* The size of the ethdev structure rte_eth_hash_filter_info is changed
+  by adding a new element rte_eth_input_set_conf in an union.
+

 * The new fields rx_desc_lim and tx_desc_lim are added into rte_eth_dev_info
   structure.
 
 * The new fields rx_desc_lim and tx_desc_lim are added into rte_eth_dev_info
   structure.
 

+* The maximum number of queues per port CONFIG_RTE_MAX_QUEUES_PER_PORT is
+  increased to 1024.
+

 * The mbuf structure was changed to support unified packet type.
   It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
 
 * The mbuf structure was changed to support unified packet type.
   It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.