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net: ipa: reduce arguments to ipa_table_init_add()

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Recently ipa_table_mem() was added as a way to look up one of 8
possible memory regions by indicating whether it was a filter or
route table, hashed or not, and IPv6 or not.

We can simplify the interface to ipa_table_init_add() by passing two
flags to it instead of the opcode and both hashed and non-hashed
memory region IDs.  The "filter" and "ipv6" flags are sufficient to
determine the opcode to use, and with ipa_table_mem() can look up
the correct memory region as well.

It's possible to not have hashed tables, but we already verify the
number of entries in a filter or routing table is nonzero.  Stop
assuming a hashed table entry exists in ipa_table_init_add().

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Elder 2022-11-02 17:11:31 -05:00 committed by David S. Miller
parent d28c0e73ef
commit 5cb76899fb
1 changed files with 18 additions and 19 deletions
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37
drivers/net/ipa/ipa_table.c
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@ -376,14 +376,12 @@ int ipa_table_hash_flush(struct ipa *ipa)
return 0;
}
static void ipa_table_init_add(struct gsi_trans *trans, bool filter,
enum ipa_cmd_opcode opcode,
enum ipa_mem_id mem_id,
enum ipa_mem_id hash_mem_id)
static void ipa_table_init_add(struct gsi_trans *trans, bool filter, bool ipv6)
{
struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi);
const struct ipa_mem *hash_mem = ipa_mem_find(ipa, hash_mem_id);
const struct ipa_mem *mem = ipa_mem_find(ipa, mem_id);
const struct ipa_mem *hash_mem;
enum ipa_cmd_opcode opcode;
const struct ipa_mem *mem;
dma_addr_t hash_addr;
dma_addr_t addr;
u32 zero_offset;
@ -393,6 +391,14 @@ static void ipa_table_init_add(struct gsi_trans *trans, bool filter,
u16 count;
u16 size;
opcode = filter ? ipv6 ? IPA_CMD_IP_V6_FILTER_INIT
: IPA_CMD_IP_V4_FILTER_INIT
: ipv6 ? IPA_CMD_IP_V6_ROUTING_INIT
: IPA_CMD_IP_V4_ROUTING_INIT;
mem = ipa_table_mem(ipa, filter, false, ipv6);
hash_mem = ipa_table_mem(ipa, filter, true, ipv6);
/* Compute the number of table entries to initialize */
if (filter) {
/* The number of filtering endpoints determines number of
@ -401,13 +407,13 @@ static void ipa_table_init_add(struct gsi_trans *trans, bool filter,
* table is either the same as the non-hashed one, or zero.
*/
count = 1 + hweight32(ipa->filter_map);
hash_count = hash_mem->size ? count : 0;
hash_count = hash_mem && hash_mem->size ? count : 0;
} else {
/* The size of a route table region determines the number
* of entries it has.
*/
count = mem->size / sizeof(__le64);
hash_count = hash_mem->size / sizeof(__le64);
hash_count = hash_mem && hash_mem->size / sizeof(__le64);
}
size = count * sizeof(__le64);
hash_size = hash_count * sizeof(__le64);
@ -458,17 +464,10 @@ int ipa_table_setup(struct ipa *ipa)
return -EBUSY;
}
ipa_table_init_add(trans, false, IPA_CMD_IP_V4_ROUTING_INIT,
IPA_MEM_V4_ROUTE, IPA_MEM_V4_ROUTE_HASHED);
ipa_table_init_add(trans, false, IPA_CMD_IP_V6_ROUTING_INIT,
IPA_MEM_V6_ROUTE, IPA_MEM_V6_ROUTE_HASHED);
ipa_table_init_add(trans, true, IPA_CMD_IP_V4_FILTER_INIT,
IPA_MEM_V4_FILTER, IPA_MEM_V4_FILTER_HASHED);
ipa_table_init_add(trans, true, IPA_CMD_IP_V6_FILTER_INIT,
IPA_MEM_V6_FILTER, IPA_MEM_V6_FILTER_HASHED);
ipa_table_init_add(trans, false, false);
ipa_table_init_add(trans, false, true);
ipa_table_init_add(trans, true, false);
ipa_table_init_add(trans, true, true);
gsi_trans_commit_wait(trans);