diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-01-07 06:18:02 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-09 06:39:11 +0300 |
| commit | 74b3092c45c3101bd110013ac7fb693b3c9231f3 (patch) | |
| tree | 771e139956ef39c2b950e1c0f14b1f7daf38dd6d /drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | |
| parent | f1ff24aa95f5612c7744d1ff9b8394a9e09bc6c9 (diff) | |
| download | linux-74b3092c45c3101bd110013ac7fb693b3c9231f3.tar.xz | |
cxgb4: Add support for cim_qcfg entry in debugfs
Adds debug log to get cim queue config
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/t4_hw.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 1e30554f2699..734d33e3f53b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -4326,6 +4326,41 @@ int t4_port_init(struct adapter *adap, int mbox, int pf, int vf) } /** + * t4_read_cimq_cfg - read CIM queue configuration + * @adap: the adapter + * @base: holds the queue base addresses in bytes + * @size: holds the queue sizes in bytes + * @thres: holds the queue full thresholds in bytes + * + * Returns the current configuration of the CIM queues, starting with + * the IBQs, then the OBQs. + */ +void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres) +{ + unsigned int i, v; + int cim_num_obq = is_t4(adap->params.chip) ? + CIM_NUM_OBQ : CIM_NUM_OBQ_T5; + + for (i = 0; i < CIM_NUM_IBQ; i++) { + t4_write_reg(adap, CIM_QUEUE_CONFIG_REF_A, IBQSELECT_F | + QUENUMSELECT_V(i)); + v = t4_read_reg(adap, CIM_QUEUE_CONFIG_CTRL_A); + /* value is in 256-byte units */ + *base++ = CIMQBASE_G(v) * 256; + *size++ = CIMQSIZE_G(v) * 256; + *thres++ = QUEFULLTHRSH_G(v) * 8; /* 8-byte unit */ + } + for (i = 0; i < cim_num_obq; i++) { + t4_write_reg(adap, CIM_QUEUE_CONFIG_REF_A, OBQSELECT_F | + QUENUMSELECT_V(i)); + v = t4_read_reg(adap, CIM_QUEUE_CONFIG_CTRL_A); + /* value is in 256-byte units */ + *base++ = CIMQBASE_G(v) * 256; + *size++ = CIMQSIZE_G(v) * 256; + } +} + +/** * t4_cim_read - read a block from CIM internal address space * @adap: the adapter * @addr: the start address within the CIM address space |