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RDMA/device: Consolidate ib_device per_port data into one place 

There is no reason to have three allocations of per-port data. Combine
them together and make the lifetime for all the per-port data match the
struct ib_device.

Following patches will require more port-specific data, now there is a
good place to put it.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2019-02-12 21:12:48 -07:00
parent ea1075edcb
commit 8ceb1357b3
4 changed files with 78 additions and 94 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/core/cache.c
View File

@ -882,7 +882,7 @@ static int _gid_table_setup_one(struct ib_device *ib_dev)
u8 rdma_port = port + rdma_start_port(ib_dev);
table = alloc_gid_table(
ib_dev->port_immutable[rdma_port].gid_tbl_len);
ib_dev->port_data[rdma_port].immutable.gid_tbl_len);
if (!table)
goto rollback_table_setup;

70
drivers/infiniband/core/device.c
View File

@ -293,8 +293,7 @@ static void ib_device_release(struct device *device)
WARN_ON(refcount_read(&dev->refcount));
ib_cache_release_one(dev);
ib_security_release_port_pkey_list(dev);
kfree(dev->port_pkey_list);
kfree(dev->port_immutable);
kfree(dev->port_data);
xa_destroy(&dev->client_data);
kfree(dev);
}
@ -468,27 +467,31 @@ static int verify_immutable(const struct ib_device *dev, u8 port)
rdma_max_mad_size(dev, port) != 0);
}
static int read_port_immutable(struct ib_device *device)
static int setup_port_data(struct ib_device *device)
{
unsigned int port;
int ret;
/**
* device->port_immutable is indexed directly by the port number to make
/*
* device->port_data is indexed directly by the port number to make
* access to this data as efficient as possible.
*
* Therefore port_immutable is declared as a 1 based array with
* potential empty slots at the beginning.
* Therefore port_data is declared as a 1 based array with potential
* empty slots at the beginning.
*/
device->port_immutable =
kcalloc(rdma_end_port(device) + 1,
sizeof(*device->port_immutable), GFP_KERNEL);
if (!device->port_immutable)
device->port_data = kcalloc(rdma_end_port(device) + 1,
sizeof(*device->port_data), GFP_KERNEL);
if (!device->port_data)
return -ENOMEM;
rdma_for_each_port (device, port) {
ret = device->ops.get_port_immutable(
device, port, &device->port_immutable[port]);
struct ib_port_data *pdata = &device->port_data[port];
spin_lock_init(&pdata->pkey_list_lock);
INIT_LIST_HEAD(&pdata->pkey_list);
ret = device->ops.get_port_immutable(device, port,
&pdata->immutable);
if (ret)
return ret;
@ -507,30 +510,6 @@ void ib_get_device_fw_str(struct ib_device *dev, char *str)
}
EXPORT_SYMBOL(ib_get_device_fw_str);
static int setup_port_pkey_list(struct ib_device *device)
{
int i;
/**
* device->port_pkey_list is indexed directly by the port number,
* Therefore it is declared as a 1 based array with potential empty
* slots at the beginning.
*/
device->port_pkey_list = kcalloc(rdma_end_port(device) + 1,
sizeof(*device->port_pkey_list),
GFP_KERNEL);
if (!device->port_pkey_list)
return -ENOMEM;
for (i = 0; i < (rdma_end_port(device) + 1); i++) {
spin_lock_init(&device->port_pkey_list[i].list_lock);
INIT_LIST_HEAD(&device->port_pkey_list[i].pkey_list);
}
return 0;
}
static void ib_policy_change_task(struct work_struct *work)
{
struct ib_device *dev;
@ -668,10 +647,9 @@ static int setup_device(struct ib_device *device)
if (ret)
return ret;
ret = read_port_immutable(device);
ret = setup_port_data(device);
if (ret) {
dev_warn(&device->dev,
"Couldn't create per port immutable data\n");
dev_warn(&device->dev, "Couldn't create per-port data\n");
return ret;
}
@ -683,12 +661,6 @@ static int setup_device(struct ib_device *device)
return ret;
}
ret = setup_port_pkey_list(device);
if (ret) {
dev_warn(&device->dev, "Couldn't create per port_pkey_list\n");
return ret;
}
return 0;
}
@ -1221,7 +1193,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
if (!rdma_protocol_ib(device, port))
continue;
for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) {
for (i = 0; i < device->port_data[port].immutable.gid_tbl_len;
++i) {
ret = rdma_query_gid(device, port, i, &tmp_gid);
if (ret)
return ret;
@ -1253,7 +1226,8 @@ int ib_find_pkey(struct ib_device *device,
u16 tmp_pkey;
int partial_ix = -1;
for (i = 0; i < device->port_immutable[port_num].pkey_tbl_len; ++i) {
for (i = 0; i < device->port_data[port_num].immutable.pkey_tbl_len;
++i) {
ret = ib_query_pkey(device, port_num, i, &tmp_pkey);
if (ret)
return ret;

20
drivers/infiniband/core/security.c
View File

@ -49,16 +49,15 @@ static struct pkey_index_qp_list *get_pkey_idx_qp_list(struct ib_port_pkey *pp)
struct pkey_index_qp_list *tmp_pkey;
struct ib_device *dev = pp->sec->dev;
spin_lock(&dev->port_pkey_list[pp->port_num].list_lock);
list_for_each_entry(tmp_pkey,
&dev->port_pkey_list[pp->port_num].pkey_list,
spin_lock(&dev->port_data[pp->port_num].pkey_list_lock);
list_for_each_entry (tmp_pkey, &dev->port_data[pp->port_num].pkey_list,
pkey_index_list) {
if (tmp_pkey->pkey_index == pp->pkey_index) {
pkey = tmp_pkey;
break;
}
}
spin_unlock(&dev->port_pkey_list[pp->port_num].list_lock);
spin_unlock(&dev->port_data[pp->port_num].pkey_list_lock);
return pkey;
}
@ -263,12 +262,12 @@ static int port_pkey_list_insert(struct ib_port_pkey *pp)
if (!pkey)
return -ENOMEM;
spin_lock(&dev->port_pkey_list[port_num].list_lock);
spin_lock(&dev->port_data[port_num].pkey_list_lock);
/* Check for the PKey again. A racing process may
* have created it.
*/
list_for_each_entry(tmp_pkey,
&dev->port_pkey_list[port_num].pkey_list,
&dev->port_data[port_num].pkey_list,
pkey_index_list) {
if (tmp_pkey->pkey_index == pp->pkey_index) {
kfree(pkey);
@ -283,9 +282,9 @@ static int port_pkey_list_insert(struct ib_port_pkey *pp)
spin_lock_init(&pkey->qp_list_lock);
INIT_LIST_HEAD(&pkey->qp_list);
list_add(&pkey->pkey_index_list,
&dev->port_pkey_list[port_num].pkey_list);
&dev->port_data[port_num].pkey_list);
}
spin_unlock(&dev->port_pkey_list[port_num].list_lock);
spin_unlock(&dev->port_data[port_num].pkey_list_lock);
}
spin_lock(&pkey->qp_list_lock);
@ -551,8 +550,7 @@ void ib_security_cache_change(struct ib_device *device,
{
struct pkey_index_qp_list *pkey;
list_for_each_entry(pkey,
&device->port_pkey_list[port_num].pkey_list,
list_for_each_entry (pkey, &device->port_data[port_num].pkey_list,
pkey_index_list) {
check_pkey_qps(pkey,
device,
@ -569,7 +567,7 @@ void ib_security_release_port_pkey_list(struct ib_device *device)
rdma_for_each_port (device, i) {
list_for_each_entry_safe(pkey,
tmp_pkey,
&device->port_pkey_list[i].pkey_list,
&device->port_data[i].pkey_list,
pkey_index_list) {
list_del(&pkey->pkey_index_list);
kfree(pkey);

70
include/rdma/ib_verbs.h
View File

@ -2198,6 +2198,13 @@ struct ib_port_immutable {
u32 max_mad_size;
};
struct ib_port_data {
struct ib_port_immutable immutable;
spinlock_t pkey_list_lock;
struct list_head pkey_list;
};
/* rdma netdev type - specifies protocol type */
enum rdma_netdev_t {
RDMA_NETDEV_OPA_VNIC,
@ -2243,12 +2250,6 @@ struct rdma_netdev_alloc_params {
struct net_device *netdev, void *param);
};
struct ib_port_pkey_list {
/* Lock to hold while modifying the list. */
spinlock_t list_lock;
struct list_head pkey_list;
};
struct ib_counters {
struct ib_device *device;
struct ib_uobject *uobject;
@ -2549,14 +2550,12 @@ struct ib_device {
struct ib_cache cache;
/**
* port_immutable is indexed by port number
* port_data is indexed by port number
*/
struct ib_port_immutable *port_immutable;
struct ib_port_data *port_data;
int num_comp_vectors;
struct ib_port_pkey_list *port_pkey_list;
struct iw_cm_verbs *iwcm;
struct module *owner;
@ -2860,34 +2859,38 @@ static inline int rdma_is_port_valid(const struct ib_device *device,
static inline bool rdma_is_grh_required(const struct ib_device *device,
u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags &
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_PORT_IB_GRH_REQUIRED;
}
static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IB;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_IB;
}
static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags &
return device->port_data[port_num].immutable.core_cap_flags &
(RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP);
}
static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
}
static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_ROCE;
}
static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_IWARP;
}
static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
@ -2898,12 +2901,14 @@ static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_RAW_PACKET;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_RAW_PACKET;
}
static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_USNIC;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_PROT_USNIC;
}
/**
@ -2920,7 +2925,8 @@ static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_n
*/
static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_MAD;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_IB_MAD;
}
/**
@ -2944,8 +2950,8 @@ static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num)
{
return (device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_OPA_MAD)
== RDMA_CORE_CAP_OPA_MAD;
return (device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_OPA_MAD) == RDMA_CORE_CAP_OPA_MAD;
}
/**
@ -2970,7 +2976,8 @@ static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SMI;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_IB_SMI;
}
/**
@ -2990,7 +2997,8 @@ static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_CM;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_IB_CM;
}
/**
@ -3007,7 +3015,8 @@ static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IW_CM;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_IW_CM;
}
/**
@ -3027,7 +3036,8 @@ static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SA;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_IB_SA;
}
/**
@ -3067,7 +3077,8 @@ static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num
*/
static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_AF_IB;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_AF_IB;
}
/**
@ -3088,7 +3099,8 @@ static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH;
return device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_ETH_AH;
}
/**
@ -3102,7 +3114,7 @@ static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
*/
static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num)
{
return (device->port_immutable[port_num].core_cap_flags &
return (device->port_data[port_num].immutable.core_cap_flags &
RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH;
}
@ -3120,7 +3132,7 @@ static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num)
*/
static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num)
{
return device->port_immutable[port_num].max_mad_size;
return device->port_data[port_num].immutable.max_mad_size;
}
/**