diff options
Diffstat (limited to 'drivers/net/fsl-mc/dpio/qbman_portal.h')
| -rw-r--r-- | drivers/net/fsl-mc/dpio/qbman_portal.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/net/fsl-mc/dpio/qbman_portal.h b/drivers/net/fsl-mc/dpio/qbman_portal.h index bb67c3bd06..86e2c3aac4 100644 --- a/drivers/net/fsl-mc/dpio/qbman_portal.h +++ b/drivers/net/fsl-mc/dpio/qbman_portal.h @@ -14,6 +14,10 @@ /* Management command result codes */ #define QBMAN_MC_RSLT_OK 0xf0 +/* TBD: as of QBMan 4.1, DQRR will be 8 rather than 4! */ +#define QBMAN_DQRR_SIZE 4 + + /* --------------------- */ /* portal data structure */ /* --------------------- */ @@ -48,14 +52,13 @@ struct qbman_swp { * to whether or not a command can be submitted, not whether or * not a previously-submitted command is still executing. In * other words, once proof is seen that the previously-submitted - * command is executing, "vdq" is no longer "busy". TODO: - * convert this to "atomic_t" so that it is thread-safe (without - * locking). */ - int busy; + * command is executing, "vdq" is no longer "busy". + */ + atomic_t busy; uint32_t valid_bit; /* 0x00 or 0x80 */ /* We need to determine when vdq is no longer busy. This depends * on whether the "busy" (last-submitted) dequeue command is - * targetting DQRR or main-memory, and detected is based on the + * targeting DQRR or main-memory, and detected is based on the * presence of the dequeue command's "token" showing up in * dequeue entries in DQRR or main-memory (respectively). Debug * builds will, when submitting vdq commands, verify that the @@ -127,6 +130,7 @@ static inline uint32_t qb_attr_code_decode(const struct qb_attr_code *code, return d32_uint32_t(code->lsoffset, code->width, cacheline[code->word]); } + /* encode a field to a cacheline */ static inline void qb_attr_code_encode(const struct qb_attr_code *code, uint32_t *cacheline, uint32_t val) @@ -136,6 +140,12 @@ static inline void qb_attr_code_encode(const struct qb_attr_code *code, | e32_uint32_t(code->lsoffset, code->width, val); } +static inline void qb_attr_code_encode_64(const struct qb_attr_code *code, + uint64_t *cacheline, uint64_t val) +{ + cacheline[code->word / 2] = val; +} + /* ---------------------- */ /* Descriptors/cachelines */ /* ---------------------- */ @@ -144,7 +154,7 @@ static inline void qb_attr_code_encode(const struct qb_attr_code *code, * a "descriptor" type that the caller can instantiate however they like. * Ultimately though, it is just a cacheline of binary storage (or something * smaller when it is known that the descriptor doesn't need all 64 bytes) for - * holding pre-formatted pieces of harware commands. The performance-critical + * holding pre-formatted pieces of hardware commands. The performance-critical * code can then copy these descriptors directly into hardware command * registers more efficiently than trying to construct/format commands * on-the-fly. The API user sees the descriptor as an array of 32-bit words in |
