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common/cnxk: align CPT LF enable/disable sequence

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For CPT LF IQ enable, set CPT_LF_CTL[ENA] before setting
CPT_LF_INPROG[EENA] to true.

For CPT LF IQ disable, align sequence to that of HRM.

Also this patch aligns space for instructions in CPT LF
to ROC_ALIGN to make complete memory cache aligned and
has other minor fixes/additions.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
This commit is contained in:
Nithin Dabilpuram 2021-10-01 19:10:04 +05:30 committed by Jerin Jacob
parent 5f56c674e4
commit 2a85deceee
3 changed files with 53 additions and 8 deletions
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11
drivers/common/cnxk/hw/cpt.h
View File

@ -124,6 +124,17 @@ union cpt_lf_misc_int {
} s;
};
union cpt_lf_q_grp_ptr {
uint64_t u;
struct {
uint64_t dq_ptr : 15;
uint64_t reserved_31_15 : 17;
uint64_t nq_ptr : 15;
uint64_t reserved_47_62 : 16;
uint64_t xq_xor : 1;
} s;
};
union cpt_inst_w4 {
uint64_t u64;
struct {

42
drivers/common/cnxk/roc_cpt.c
View File

@ -437,8 +437,10 @@ cpt_lf_iq_mem_calc(uint32_t nb_desc)
len += CPT_IQ_FC_LEN;
/* For instruction queues */
len += CPT_IQ_NB_DESC_SIZE_DIV40(nb_desc) * CPT_IQ_NB_DESC_MULTIPLIER *
sizeof(struct cpt_inst_s);
len += PLT_ALIGN(CPT_IQ_NB_DESC_SIZE_DIV40(nb_desc) *
CPT_IQ_NB_DESC_MULTIPLIER *
sizeof(struct cpt_inst_s),
ROC_ALIGN);
return len;
}
@ -550,6 +552,7 @@ cpt_lf_init(struct roc_cpt_lf *lf)
iq_mem = plt_zmalloc(cpt_lf_iq_mem_calc(lf->nb_desc), ROC_ALIGN);
if (iq_mem == NULL)
return -ENOMEM;
plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
blkaddr = cpt_get_blkaddr(dev);
lf->rbase = dev->bar2 + ((blkaddr << 20) | (lf->lf_id << 12));
@ -634,7 +637,7 @@ roc_cpt_dev_init(struct roc_cpt *roc_cpt)
}
/* Reserve 1 CPT LF for inline inbound */
nb_lf_avail = PLT_MIN(nb_lf_avail, ROC_CPT_MAX_LFS - 1);
nb_lf_avail = PLT_MIN(nb_lf_avail, (uint16_t)(ROC_CPT_MAX_LFS - 1));
roc_cpt->nb_lf_avail = nb_lf_avail;
@ -770,8 +773,10 @@ void
roc_cpt_iq_disable(struct roc_cpt_lf *lf)
{
union cpt_lf_ctl lf_ctl = {.u = 0x0};
union cpt_lf_q_grp_ptr grp_ptr;
union cpt_lf_inprog lf_inprog;
int timeout = 20;
int cnt;
/* Disable instructions enqueuing */
plt_write64(lf_ctl.u, lf->rbase + CPT_LF_CTL);
@ -795,6 +800,27 @@ roc_cpt_iq_disable(struct roc_cpt_lf *lf)
*/
lf_inprog.s.eena = 0x0;
plt_write64(lf_inprog.u, lf->rbase + CPT_LF_INPROG);
/* Wait for instruction queue to become empty */
cnt = 0;
do {
lf_inprog.u = plt_read64(lf->rbase + CPT_LF_INPROG);
if (lf_inprog.s.grb_partial)
cnt = 0;
else
cnt++;
grp_ptr.u = plt_read64(lf->rbase + CPT_LF_Q_GRP_PTR);
} while ((cnt < 10) && (grp_ptr.s.nq_ptr != grp_ptr.s.dq_ptr));
cnt = 0;
do {
lf_inprog.u = plt_read64(lf->rbase + CPT_LF_INPROG);
if ((lf_inprog.s.inflight == 0) && (lf_inprog.s.gwb_cnt < 40) &&
((lf_inprog.s.grb_cnt == 0) || (lf_inprog.s.grb_cnt == 40)))
cnt++;
else
cnt = 0;
} while (cnt < 10);
}
void
@ -806,11 +832,6 @@ roc_cpt_iq_enable(struct roc_cpt_lf *lf)
/* Disable command queue */
roc_cpt_iq_disable(lf);
/* Enable command queue execution */
lf_inprog.u = plt_read64(lf->rbase + CPT_LF_INPROG);
lf_inprog.s.eena = 1;
plt_write64(lf_inprog.u, lf->rbase + CPT_LF_INPROG);
/* Enable instruction queue enqueuing */
lf_ctl.u = plt_read64(lf->rbase + CPT_LF_CTL);
lf_ctl.s.ena = 1;
@ -819,6 +840,11 @@ roc_cpt_iq_enable(struct roc_cpt_lf *lf)
lf_ctl.s.fc_hyst_bits = lf->fc_hyst_bits;
plt_write64(lf_ctl.u, lf->rbase + CPT_LF_CTL);
/* Enable command queue execution */
lf_inprog.u = plt_read64(lf->rbase + CPT_LF_INPROG);
lf_inprog.s.eena = 1;
plt_write64(lf_inprog.u, lf->rbase + CPT_LF_INPROG);
cpt_lf_dump(lf);
}

8
drivers/common/cnxk/roc_cpt.h
View File

@ -76,6 +76,14 @@
#define ROC_CPT_TUNNEL_IPV4_HDR_LEN 20
#define ROC_CPT_TUNNEL_IPV6_HDR_LEN 40
#define ROC_CPT_CCM_AAD_DATA 1
#define ROC_CPT_CCM_MSG_LEN 4
#define ROC_CPT_CCM_ICV_LEN 16
#define ROC_CPT_CCM_FLAGS \
((ROC_CPT_CCM_AAD_DATA << 6) | \
(((ROC_CPT_CCM_ICV_LEN - 2) / 2) << 3) | (ROC_CPT_CCM_MSG_LEN - 1))
#define ROC_CPT_CCM_SALT_LEN 3
struct roc_cpt_lmtline {
uint64_t io_addr;
uint64_t *fc_addr;