From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
---
drivers/infiniband/core/cache.c | 4 +-
drivers/infiniband/core/device.c | 70 +++++++++-------------------
drivers/infiniband/core/security.c | 24 +++++-----
include/rdma/ib_verbs.h | 74 +++++++++++++++++-------------
4 files changed, 78 insertions(+), 94 deletions(-)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 3d137d8381a944..9d0e8aca741a6d 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -881,8 +881,8 @@ static int _gid_table_setup_one(struct ib_device *ib_dev)
for (port = 0; port < ib_dev->phys_port_cnt; port++) {
u8 rdma_port = port + rdma_start_port(ib_dev);
- table = alloc_gid_table(
- ib_dev->port_immutable[rdma_port].gid_tbl_len);
+ table = alloc_gid_table(
+ ib_dev->port_data[rdma_port].immutable.gid_tbl_len);
if (!table)
goto rollback_table_setup;
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index d3bd09a6b53891..58591408bb1b35 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -292,8 +292,7 @@ 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);
}
@@ -461,27 +460,31 @@ 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;
@@ -500,30 +503,6 @@ 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;
@@ -661,10 +640,9 @@ 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;
}
@@ -676,12 +654,6 @@ 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;
}
@@ -1207,7 +1179,8 @@ 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;
@@ -1239,7 +1212,8 @@ 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;
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c
index 492702b836003c..1ab423b19f778f 100644
--- a/drivers/infiniband/core/security.c
+++ b/drivers/infiniband/core/security.c
@@ -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,
- pkey_index_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);
@@ -551,9 +550,8 @@ 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,
- pkey_index_list) {
+ list_for_each_entry (pkey, &device->port_data[port_num].pkey_list,
+ pkey_index_list) {
check_pkey_qps(pkey,
device,
port_num,
@@ -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);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 99a4868f4d9c58..4225cd9eb6f840 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -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;
@@ -2547,14 +2548,12 @@ 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;
@@ -2861,34 +2860,38 @@ 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 &
- RDMA_CORE_PORT_IB_GRH_REQUIRED;
+ 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 &
- (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP);
+ 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)
@@ -2899,12 +2902,14 @@ 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;
}
/**
@@ -2921,7 +2926,8 @@ 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;
}
/**
@@ -2945,8 +2951,8 @@ 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;
}
/**
@@ -2971,7 +2977,8 @@ 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;
}
/**
@@ -2991,7 +2998,8 @@ 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;
}
/**
@@ -3008,7 +3016,8 @@ 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;
}
/**
@@ -3028,7 +3037,8 @@ 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;
}
/**
@@ -3068,7 +3078,8 @@ 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;
}
/**
@@ -3089,7 +3100,8 @@ 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;
}
/**
@@ -3103,7 +3115,7 @@ 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;
}
@@ -3121,7 +3133,7 @@ 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;
}
/**
--
2.20.1
