[dpdk-dev] [PATCH v2 01/15] eal: Fix cording style of eal_pci.c and eal_pci_uio.c
Qiu, Michael
michael.qiu at intel.com
Thu Mar 12 11:57:18 CET 2015
On 3/12/2015 6:50 PM, Bruce Richardson wrote:
> On Thu, Mar 12, 2015 at 07:17:40PM +0900, Tetsuya Mukawa wrote:
>> This patch fixes cording style of below files in linuxapp and bsdapp.
>> - eal_pci.c
>> - eal_pci_uio.c
>>
>> Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
> Hi Tetsuya,
>
> While there is some good cleanup here, I disagree with a number of the changes
> made purely to the whitespace in the file. The style of using a double-indent
> for line continuations is very widely used in DPDK code, much more so than the
> style of lining things up with the previous line.
Yes, but both style are seeing in dpdk, here the patch is using Tab +
whitespace, which is also
the linux kernel's style.
So is there any rule to allow only one style?
Mixed style is bad...
Thanks,
Michael
> So ack to the changes removing unnecessary braces, and occasional splitting of
> really long lines (though a few chars over 80 is ok). NAK to the whitespace
> and indentation changes.
>
> Regards,
> /Bruce
>
>> ---
>> lib/librte_eal/bsdapp/eal/eal_pci.c | 67 ++++++++++++++++++-------------
>> lib/librte_eal/linuxapp/eal/eal_pci.c | 32 +++++++++------
>> lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 37 ++++++++++-------
>> 3 files changed, 80 insertions(+), 56 deletions(-)
>>
>> diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
>> index fe3ef86..cbd0a4e 100644
>> --- a/lib/librte_eal/bsdapp/eal/eal_pci.c
>> +++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
>> @@ -142,8 +142,9 @@ pci_map_resource(void *requested_addr, const char *devname, off_t offset,
>> MAP_SHARED, fd, offset);
>> close(fd);
>> if (mapaddr == MAP_FAILED ||
>> - (requested_addr != NULL && mapaddr != requested_addr)) {
>> - RTE_LOG(ERR, EAL, "%s(): cannot mmap(%s(%d), %p, 0x%lx, 0x%lx):"
>> + (requested_addr != NULL && mapaddr != requested_addr)) {
>> + RTE_LOG(ERR, EAL,
>> + "%s(): cannot mmap(%s(%d), %p, 0x%lx, 0x%lx):"
>> " %s (%p)\n", __func__, devname, fd, requested_addr,
>> (unsigned long)size, (unsigned long)offset,
>> strerror(errno), mapaddr);
>> @@ -161,9 +162,10 @@ fail:
>> static int
>> pci_uio_map_secondary(struct rte_pci_device *dev)
>> {
>> - size_t i;
>> - struct uio_resource *uio_res;
>> - struct uio_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, uio_res_list);
>> + size_t i;
>> + struct uio_resource *uio_res;
>> + struct uio_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, uio_res_list);
>>
>> TAILQ_FOREACH(uio_res, uio_res_list, next) {
>>
>> @@ -179,10 +181,10 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
>> != uio_res->maps[i].addr) {
>> RTE_LOG(ERR, EAL,
>> "Cannot mmap device resource\n");
>> - return (-1);
>> + return -1;
>> }
>> }
>> - return (0);
>> + return 0;
>> }
>>
>> RTE_LOG(ERR, EAL, "Cannot find resource for device\n");
>> @@ -201,7 +203,8 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> uint64_t pagesz;
>> struct rte_pci_addr *loc = &dev->addr;
>> struct uio_resource *uio_res;
>> - struct uio_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, uio_res_list);
>> + struct uio_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, uio_res_list);
>> struct uio_map *maps;
>>
>> dev->intr_handle.fd = -1;
>> @@ -209,14 +212,16 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>>
>> /* secondary processes - use already recorded details */
>> if (rte_eal_process_type() != RTE_PROC_PRIMARY)
>> - return (pci_uio_map_secondary(dev));
>> + return pci_uio_map_secondary(dev);
>>
>> snprintf(devname, sizeof(devname), "/dev/uio at pci:%u:%u:%u",
>> dev->addr.bus, dev->addr.devid, dev->addr.function);
>>
>> if (access(devname, O_RDWR) < 0) {
>> - RTE_LOG(WARNING, EAL, " "PCI_PRI_FMT" not managed by UIO driver, "
>> - "skipping\n", loc->domain, loc->bus, loc->devid, loc->function);
>> + RTE_LOG(WARNING, EAL,
>> + " "PCI_PRI_FMT" not managed by UIO driver, "
>> + "skipping\n", loc->domain, loc->bus,
>> + loc->devid, loc->function);
>> return 1;
>> }
>>
>> @@ -233,7 +238,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> if ((uio_res = rte_zmalloc("UIO_RES", sizeof (*uio_res), 0)) == NULL) {
>> RTE_LOG(ERR, EAL,
>> "%s(): cannot store uio mmap details\n", __func__);
>> - return (-1);
>> + return -1;
>> }
>>
>> snprintf(uio_res->path, sizeof(uio_res->path), "%s", devname);
>> @@ -248,7 +253,8 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>>
>> j = uio_res->nb_maps;
>> /* skip empty BAR */
>> - if ((phaddr = dev->mem_resource[i].phys_addr) == 0)
>> + phaddr = dev->mem_resource[i].phys_addr;
>> + if (phaddr == 0)
>> continue;
>>
>> /* if matching map is found, then use it */
>> @@ -261,7 +267,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> (size_t)maps[j].size)
>> ) == NULL) {
>> rte_free(uio_res);
>> - return (-1);
>> + return -1;
>> }
>>
>> maps[j].addr = mapaddr;
>> @@ -271,7 +277,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>>
>> TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
>>
>> - return (0);
>> + return 0;
>> }
>>
>> /* Scan one pci sysfs entry, and fill the devices list from it. */
>> @@ -311,7 +317,7 @@ pci_scan_one(int dev_pci_fd, struct pci_conf *conf)
>> /* FreeBSD has no NUMA support (yet) */
>> dev->numa_node = 0;
>>
>> -/* parse resources */
>> + /* parse resources */
>> switch (conf->pc_hdr & PCIM_HDRTYPE) {
>> case PCIM_HDRTYPE_NORMAL:
>> max = PCIR_MAX_BAR_0;
>> @@ -440,32 +446,37 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
>>
>> /* check if device's identifiers match the driver's ones */
>> if (id_table->vendor_id != dev->id.vendor_id &&
>> - id_table->vendor_id != PCI_ANY_ID)
>> + id_table->vendor_id != PCI_ANY_ID)
>> continue;
>> if (id_table->device_id != dev->id.device_id &&
>> - id_table->device_id != PCI_ANY_ID)
>> + id_table->device_id != PCI_ANY_ID)
>> continue;
>> - if (id_table->subsystem_vendor_id != dev->id.subsystem_vendor_id &&
>> - id_table->subsystem_vendor_id != PCI_ANY_ID)
>> + if (id_table->subsystem_vendor_id !=
>> + dev->id.subsystem_vendor_id &&
>> + id_table->subsystem_vendor_id != PCI_ANY_ID)
>> continue;
>> - if (id_table->subsystem_device_id != dev->id.subsystem_device_id &&
>> - id_table->subsystem_device_id != PCI_ANY_ID)
>> + if (id_table->subsystem_device_id !=
>> + dev->id.subsystem_device_id &&
>> + id_table->subsystem_device_id != PCI_ANY_ID)
>> continue;
>>
>> struct rte_pci_addr *loc = &dev->addr;
>>
>> - RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
>> - loc->domain, loc->bus, loc->devid, loc->function,
>> - dev->numa_node);
>> + RTE_LOG(DEBUG, EAL,
>> + "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
>> + loc->domain, loc->bus, loc->devid, loc->function,
>> + dev->numa_node);
>>
>> - RTE_LOG(DEBUG, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id,
>> - dev->id.device_id, dr->name);
>> + RTE_LOG(DEBUG, EAL,
>> + " probe driver: %x:%x %s\n", dev->id.vendor_id,
>> + dev->id.device_id, dr->name);
>>
>> /* no initialization when blacklisted, return without error */
>> if (dev->devargs != NULL &&
>> dev->devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI) {
>>
>> - RTE_LOG(DEBUG, EAL, " Device is blacklisted, not initializing\n");
>> + RTE_LOG(DEBUG, EAL,
>> + " Device is blacklisted, not initializing\n");
>> return 0;
>> }
>>
>> diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
>> index 83c589e..353b0b8 100644
>> --- a/lib/librte_eal/linuxapp/eal/eal_pci.c
>> +++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
>> @@ -154,7 +154,8 @@ pci_map_resource(void *requested_addr, int fd, off_t offset, size_t size,
>> mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE,
>> MAP_SHARED | additional_flags, fd, offset);
>> if (mapaddr == MAP_FAILED) {
>> - RTE_LOG(ERR, EAL, "%s(): cannot mmap(%d, %p, 0x%lx, 0x%lx): %s (%p)\n",
>> + RTE_LOG(ERR, EAL,
>> + "%s(): cannot mmap(%d, %p, 0x%lx, 0x%lx): %s (%p)\n",
>> __func__, fd, requested_addr,
>> (unsigned long)size, (unsigned long)offset,
>> strerror(errno), mapaddr);
>> @@ -631,31 +632,36 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
>>
>> /* check if device's identifiers match the driver's ones */
>> if (id_table->vendor_id != dev->id.vendor_id &&
>> - id_table->vendor_id != PCI_ANY_ID)
>> + id_table->vendor_id != PCI_ANY_ID)
>> continue;
>> if (id_table->device_id != dev->id.device_id &&
>> - id_table->device_id != PCI_ANY_ID)
>> + id_table->device_id != PCI_ANY_ID)
>> continue;
>> - if (id_table->subsystem_vendor_id != dev->id.subsystem_vendor_id &&
>> - id_table->subsystem_vendor_id != PCI_ANY_ID)
>> + if (id_table->subsystem_vendor_id !=
>> + dev->id.subsystem_vendor_id &&
>> + id_table->subsystem_vendor_id != PCI_ANY_ID)
>> continue;
>> - if (id_table->subsystem_device_id != dev->id.subsystem_device_id &&
>> - id_table->subsystem_device_id != PCI_ANY_ID)
>> + if (id_table->subsystem_device_id !=
>> + dev->id.subsystem_device_id &&
>> + id_table->subsystem_device_id != PCI_ANY_ID)
>> continue;
>>
>> struct rte_pci_addr *loc = &dev->addr;
>>
>> - RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
>> - loc->domain, loc->bus, loc->devid, loc->function,
>> - dev->numa_node);
>> + RTE_LOG(DEBUG, EAL,
>> + "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
>> + loc->domain, loc->bus, loc->devid, loc->function,
>> + dev->numa_node);
>>
>> - RTE_LOG(DEBUG, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id,
>> - dev->id.device_id, dr->name);
>> + RTE_LOG(DEBUG, EAL,
>> + " probe driver: %x:%x %s\n", dev->id.vendor_id,
>> + dev->id.device_id, dr->name);
>>
>> /* no initialization when blacklisted, return without error */
>> if (dev->devargs != NULL &&
>> dev->devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI) {
>> - RTE_LOG(DEBUG, EAL, " Device is blacklisted, not initializing\n");
>> + RTE_LOG(DEBUG, EAL,
>> + " Device is blacklisted, not initializing\n");
>> return 1;
>> }
>>
>> diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
>> index 2d1c69b..6f229d6 100644
>> --- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
>> +++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
>> @@ -92,7 +92,8 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
>> {
>> int fd, i;
>> struct mapped_pci_resource *uio_res;
>> - struct mapped_pci_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>> + struct mapped_pci_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>>
>> TAILQ_FOREACH(uio_res, uio_res_list, next) {
>>
>> @@ -117,14 +118,16 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
>> if (mapaddr != uio_res->maps[i].addr) {
>> if (mapaddr == MAP_FAILED)
>> RTE_LOG(ERR, EAL,
>> - "Cannot mmap device resource file %s: %s\n",
>> - uio_res->maps[i].path,
>> - strerror(errno));
>> + "Cannot mmap device resource "
>> + "file %s: %s\n",
>> + uio_res->maps[i].path,
>> + strerror(errno));
>> else
>> RTE_LOG(ERR, EAL,
>> - "Cannot mmap device resource file %s to address: %p\n",
>> - uio_res->maps[i].path,
>> - uio_res->maps[i].addr);
>> + "Cannot mmap device resource "
>> + "file %s to address: %p\n",
>> + uio_res->maps[i].path,
>> + uio_res->maps[i].addr);
>>
>> close(fd);
>> return -1;
>> @@ -272,7 +275,8 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> uint64_t phaddr;
>> struct rte_pci_addr *loc = &dev->addr;
>> struct mapped_pci_resource *uio_res;
>> - struct mapped_pci_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>> + struct mapped_pci_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>> struct pci_map *maps;
>>
>> dev->intr_handle.fd = -1;
>> @@ -286,8 +290,10 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> /* find uio resource */
>> uio_num = pci_get_uio_dev(dev, dirname, sizeof(dirname));
>> if (uio_num < 0) {
>> - RTE_LOG(WARNING, EAL, " "PCI_PRI_FMT" not managed by UIO driver, "
>> - "skipping\n", loc->domain, loc->bus, loc->devid, loc->function);
>> + RTE_LOG(WARNING, EAL,
>> + " "PCI_PRI_FMT" not managed by UIO driver, "
>> + "skipping\n", loc->domain, loc->bus,
>> + loc->devid, loc->function);
>> return 1;
>> }
>> snprintf(devname, sizeof(devname), "/dev/uio%u", uio_num);
>> @@ -338,12 +344,11 @@ pci_uio_map_resource(struct rte_pci_device *dev)
>> if (phaddr == 0)
>> continue;
>>
>> -
>> /* update devname for mmap */
>> snprintf(devname, sizeof(devname),
>> SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/resource%d",
>> - loc->domain, loc->bus, loc->devid, loc->function,
>> - i);
>> + loc->domain, loc->bus, loc->devid,
>> + loc->function, i);
>>
>> /*
>> * open resource file, to mmap it
>> @@ -412,7 +417,8 @@ static struct mapped_pci_resource *
>> pci_uio_find_resource(struct rte_pci_device *dev)
>> {
>> struct mapped_pci_resource *uio_res;
>> - struct mapped_pci_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>> + struct mapped_pci_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>>
>> if (dev == NULL)
>> return NULL;
>> @@ -431,7 +437,8 @@ void
>> pci_uio_unmap_resource(struct rte_pci_device *dev)
>> {
>> struct mapped_pci_resource *uio_res;
>> - struct mapped_pci_res_list *uio_res_list = RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>> + struct mapped_pci_res_list *uio_res_list =
>> + RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
>>
>> if (dev == NULL)
>> return;
>> --
>> 1.9.1
>>
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