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| author | Stuart Hodgson | 2012-07-16 18:40:47 +0200 |
|---|---|---|
| committer | Ben Hutchings | 2012-09-07 22:13:40 +0200 |
| commit | c3cba721f1b761ca96f6fe437dec738db1069909 (patch) | |
| tree | 161493217418d36ff6396218b6c610953641d816 /drivers/net/ethernet/sfc/mcdi.c | |
| parent | sfc: Add channel specific receive_skb handler and post_remove callback (diff) | |
| download | kernel-qcow2-linux-c3cba721f1b761ca96f6fe437dec738db1069909.tar.gz kernel-qcow2-linux-c3cba721f1b761ca96f6fe437dec738db1069909.tar.xz kernel-qcow2-linux-c3cba721f1b761ca96f6fe437dec738db1069909.zip | |
sfc: Allow efx_mcdi_rpc to be called in two parts
For NIC/System time synchonisation efx_mcdi_rpc needs to be split in
efx_mcdi_rpc_start and efx_mcdi_rpc_finish operations.
Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/mcdi.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c index fc5e7bbcbc9e..2707e86def9e 100644 --- a/drivers/net/ethernet/sfc/mcdi.c +++ b/drivers/net/ethernet/sfc/mcdi.c @@ -320,14 +320,20 @@ static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno, efx_mcdi_complete(mcdi); } -/* Issue the given command by writing the data into the shared memory PDU, - * ring the doorbell and wait for completion. Copyout the result. */ int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen, size_t *outlen_actual) { + efx_mcdi_rpc_start(efx, cmd, inbuf, inlen); + return efx_mcdi_rpc_finish(efx, cmd, inlen, + outbuf, outlen, outlen_actual); +} + +void efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, + size_t inlen) +{ struct efx_mcdi_iface *mcdi = efx_mcdi(efx); - int rc; + BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0); efx_mcdi_acquire(mcdi); @@ -338,6 +344,15 @@ int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, spin_unlock_bh(&mcdi->iface_lock); efx_mcdi_copyin(efx, cmd, inbuf, inlen); +} + +int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen, + u8 *outbuf, size_t outlen, size_t *outlen_actual) +{ + struct efx_mcdi_iface *mcdi = efx_mcdi(efx); + int rc; + + BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0); if (mcdi->mode == MCDI_MODE_POLL) rc = efx_mcdi_poll(efx); |