From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh Subject: Re: [PATCH v3 4/6] eal/memory: rename memory API to iova types Date: Fri, 3 Nov 2017 17:05:29 +0530 Message-ID: <2572bad0-8023-3146-dfd1-1e0ef874fe70@caviumnetworks.com> References: <20170905103119.20511-1-santosh.shukla@caviumnetworks.com> <20171020123136.10557-1-santosh.shukla@caviumnetworks.com> <20171020123136.10557-5-santosh.shukla@caviumnetworks.com> <5335497.nnbAZL8Naz@xps> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org, olivier.matz@6wind.com, jerin.jacob@caviumnetworks.com, hemant.agrawal@nxp.com, anatoly.burakov@intel.com To: Thomas Monjalon Return-path: Received: from NAM01-SN1-obe.outbound.protection.outlook.com (mail-sn1nam01on0087.outbound.protection.outlook.com [104.47.32.87]) by dpdk.org (Postfix) with ESMTP id 76E051B68A for ; Fri, 3 Nov 2017 12:35:52 +0100 (CET) In-Reply-To: <5335497.nnbAZL8Naz@xps> Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Friday 03 November 2017 04:41 PM, Thomas Monjalon wrote: > 20/10/2017 14:31, Santosh Shukla: >> Renamed memory translational api to _iova types. >> The following api renamed from: >> >> rte_mempool_populate_phys() >> rte_mempool_populate_phys_tab() > These functions still have "physical addresses" in their description. > It is not consistent. > > Please provide ABI compatibility for mempool functions. > >> rte_eal_using_phys_addrs() > Why renaming rte_eal_using_phys_addrs? > I think we need to review how it is used. > Maybe it requires a rework. > >> rte_mem_virt2phy() >> rte_dump_physmem_layout() >> rte_eal_get_physmem_layout() >> rte_eal_get_physmem_size() > Those 3 functions deal with physical memory layout. > I don't see a need to rename them. In iova=va mode, those api will have va address. > But the dump function needs a change to avoid printing > "phys" even in VA case. > >> rte_malloc_virt2phy() >> rte_mem_phy2mch() > This last function was removed with Xen. > It is wrong to rename it in the release notes. > It should just be removed from the map file (I will send a patch). > >> To the following iova types api: >> >> rte_mempool_populate_iova() >> rte_mempool_populate_iova_tab() >> rte_eal_using_iova_addrs() >> rte_mem_virt2iova() > [...] >> rte_malloc_virt2iova() > I am not convinced by the names virt2iova. > I sounds like "virt to virt". > What about "virt2io" or "virt2io_addr"? no, iova can be _pa or _va, its an io_addr indeed but I prefer virt2iova, same mentioned in deprecation notice (no strong opinion), More suggestion on naming pl.? > As the ABI is broken in EAL 17.11, we do not care about compatibility. > But we must keep an alias to the old function name in order to allow > a smooth API transition for applications. > I suggest to add static inline functions with the old names and set > the deprecated attribute. ok, Will address in 18.02. Thanks.