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nfp: bpf: remove the register renumbering leftovers

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The register renumbering was removed and will not be coming back
in its old, naive form, given that it would be fundamentally
incompatible with calling functions.  Remove the leftovers.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-11-03 13:56:23 -07:00 committed by David S. Miller
parent 012bb8a8b5
commit 94508438e8
3 changed files with 4 additions and 19 deletions
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4
drivers/net/ethernet/netronome/nfp/bpf/jit.c
View File

@ -2314,9 +2314,6 @@ nfp_bpf_jit(struct bpf_prog *filter, void *prog_mem,
if (ret)
goto out;
nfp_prog->num_regs = MAX_BPF_REG;
nfp_prog->regs_per_thread = 32;
nfp_prog->prog = prog_mem;
nfp_prog->__prog_alloc_len = prog_sz;
@ -2331,7 +2328,6 @@ nfp_bpf_jit(struct bpf_prog *filter, void *prog_mem,
ret = nfp_bpf_ustore_calc(nfp_prog, (__force __le64 *)prog_mem);
res->n_instr = nfp_prog->prog_len;
res->dense_mode = false;
out:
nfp_prog_free(nfp_prog);

6
drivers/net/ethernet/netronome/nfp/bpf/main.h
View File

@ -141,8 +141,6 @@ static inline u8 mbpf_mode(const struct nfp_insn_meta *meta)
* @prog_len: number of valid instructions in @prog array
* @__prog_alloc_len: alloc size of @prog array
* @type: BPF program type
* @num_regs: number of registers used by this program
* @regs_per_thread: number of basic registers allocated per thread
* @start_off: address of the first instruction in the memory
* @tgt_out: jump target for normal exit
* @tgt_abort: jump target for abort (e.g. access outside of packet buffer)
@ -159,9 +157,6 @@ struct nfp_prog {
enum bpf_prog_type type;
unsigned int num_regs;
unsigned int regs_per_thread;
unsigned int start_off;
unsigned int tgt_out;
unsigned int tgt_abort;
@ -177,7 +172,6 @@ struct nfp_prog {
struct nfp_bpf_result {
unsigned int n_instr;
bool dense_mode;
};
int

13
drivers/net/ethernet/netronome/nfp/bpf/offload.c
View File

@ -98,19 +98,14 @@ out:
static void
nfp_net_bpf_load_and_start(struct nfp_net *nn, u32 tc_flags,
void *code, dma_addr_t dma_addr,
unsigned int code_sz, unsigned int n_instr,
bool dense_mode)
unsigned int code_sz, unsigned int n_instr)
{
u64 bpf_addr = dma_addr;
int err;
nn->dp.bpf_offload_skip_sw = !!(tc_flags & TCA_CLS_FLAGS_SKIP_SW);
if (dense_mode)
bpf_addr |= NFP_NET_CFG_BPF_CFG_8CTX;
nn_writew(nn, NFP_NET_CFG_BPF_SIZE, n_instr);
nn_writeq(nn, NFP_NET_CFG_BPF_ADDR, bpf_addr);
nn_writeq(nn, NFP_NET_CFG_BPF_ADDR, dma_addr);
/* Load up the JITed code */
err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_BPF);
@ -169,7 +164,7 @@ int nfp_net_bpf_offload(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf)
nfp_net_bpf_stop(nn);
nfp_net_bpf_load_and_start(nn, cls_bpf->gen_flags, code,
dma_addr, max_instr * sizeof(u64),
res.n_instr, res.dense_mode);
res.n_instr);
return 0;
case TC_CLSBPF_ADD:
@ -183,7 +178,7 @@ int nfp_net_bpf_offload(struct nfp_net *nn, struct tc_cls_bpf_offload *cls_bpf)
nfp_net_bpf_load_and_start(nn, cls_bpf->gen_flags, code,
dma_addr, max_instr * sizeof(u64),
res.n_instr, res.dense_mode);
res.n_instr);
return 0;
case TC_CLSBPF_DESTROY: