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| author | Divy Le Ray <divy@chelsio.com> | 2007-09-05 15:58:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:05 -0700 |
| commit | bb9366af7b4addb27156585baccadc4b6d30f223 (patch) | |
| tree | 2d22b563a7d4b531aa550e068aaae658a2d2fc08 /drivers/net/cxgb3 | |
| parent | 1c17ae8af93bed203d9760702882e9f747a51912 (diff) | |
| download | kernel_samsung_smdk4412-bb9366af7b4addb27156585baccadc4b6d30f223.zip kernel_samsung_smdk4412-bb9366af7b4addb27156585baccadc4b6d30f223.tar.gz kernel_samsung_smdk4412-bb9366af7b4addb27156585baccadc4b6d30f223.tar.bz2 | |
cxgb3 - CQ context operations time out too soon.
Currently, the driver only tries up to 5 times (5us) to get the results
of a CQ context operation. Testing has shown the chip can take as much
as 50us to return the response on SG_CONTEXT_CMD operations. So we up
the retry count to 100 to cover high loads.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/cxgb3')
| -rw-r--r-- | drivers/net/cxgb3/t3_hw.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c index bff1d02..0583293 100644 --- a/drivers/net/cxgb3/t3_hw.c +++ b/drivers/net/cxgb3/t3_hw.c @@ -1870,6 +1870,8 @@ void t3_port_intr_clear(struct adapter *adapter, int idx) phy->ops->intr_clear(phy); } +#define SG_CONTEXT_CMD_ATTEMPTS 100 + /** * t3_sge_write_context - write an SGE context * @adapter: the adapter @@ -1889,7 +1891,7 @@ static int t3_sge_write_context(struct adapter *adapter, unsigned int id, t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id)); return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1); + 0, SG_CONTEXT_CMD_ATTEMPTS, 1); } /** @@ -2075,7 +2077,7 @@ int t3_sge_enable_ecntxt(struct adapter *adapter, unsigned int id, int enable) t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(1) | F_EGRESS | V_CONTEXT(id)); return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1); + 0, SG_CONTEXT_CMD_ATTEMPTS, 1); } /** @@ -2099,7 +2101,7 @@ int t3_sge_disable_fl(struct adapter *adapter, unsigned int id) t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(1) | F_FREELIST | V_CONTEXT(id)); return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1); + 0, SG_CONTEXT_CMD_ATTEMPTS, 1); } /** @@ -2123,7 +2125,7 @@ int t3_sge_disable_rspcntxt(struct adapter *adapter, unsigned int id) t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(1) | F_RESPONSEQ | V_CONTEXT(id)); return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1); + 0, SG_CONTEXT_CMD_ATTEMPTS, 1); } /** @@ -2147,7 +2149,7 @@ int t3_sge_disable_cqcntxt(struct adapter *adapter, unsigned int id) t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(1) | F_CQ | V_CONTEXT(id)); return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1); + 0, SG_CONTEXT_CMD_ATTEMPTS, 1); } /** @@ -2172,7 +2174,7 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned int id, unsigned int op, t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) | V_CONTEXT(id) | F_CQ); if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, - 0, 5, 1, &val)) + 0, SG_CONTEXT_CMD_ATTEMPTS, 1, &val)) return -EIO; if (op >= 2 && op < 7) { @@ -2182,7 +2184,8 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned int id, unsigned int op, t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(0) | F_CQ | V_CONTEXT(id)); if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, - F_CONTEXT_CMD_BUSY, 0, 5, 1)) + F_CONTEXT_CMD_BUSY, 0, + SG_CONTEXT_CMD_ATTEMPTS, 1)) return -EIO; return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0)); } @@ -2208,7 +2211,7 @@ static int t3_sge_read_context(unsigned int type, struct adapter *adapter, t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(0) | type | V_CONTEXT(id)); if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, 0, - 5, 1)) + SG_CONTEXT_CMD_ATTEMPTS, 1)) return -EIO; data[0] = t3_read_reg(adapter, A_SG_CONTEXT_DATA0); data[1] = t3_read_reg(adapter, A_SG_CONTEXT_DATA1); |